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Document and Entity Information - USD ($) $ in Billions	12 Months Ended
Document and Entity Information - USD ($) $ in Billions	Dec. 31, 2018	Jan. 31, 2019	Jun. 30, 2018
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Trading Symbol	COF
Entity Registrant Name	CAPITAL ONE FINANCIAL CORP
Entity Central Index Key	0000927628
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		467,880,673
Entity Public Float			$ 43.1

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	12 Months Ended
CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest income:
Loans, including loans held for sale	$ 24,728	$ 23,388	$ 21,203
Investment securities	2,211	1,711	1,599
Other	237	123	89
Total interest income	27,176	25,222	22,891
Interest expense:
Deposits	2,598	1,602	1,213
Securitized debt obligations	496	327	216
Senior and subordinated notes	1,125	731	476
Other borrowings	82	102	113
Total interest expense	4,301	2,762	2,018
Net interest income	22,875	22,460	20,873
Benefit for credit losses	5,856	7,551	6,459
Net interest income after provision for credit losses	17,019	14,909	14,414
Non-interest income:
Interchange fees, net	2,823	2,573	2,452
Service charges and other customer-related fees	1,585	1,597	1,646
Debt and Equity Securities, Gain (Loss)	(209)	65	(11)
Other	1,002	542	541
Total non-interest income	5,201	4,777	4,628
Non-interest expense:
Salaries and associate benefits	5,727	5,899	5,202
Occupancy and equipment	2,118	1,939	1,944
Marketing	2,174	1,670	1,811
Professional services	1,145	1,097	1,075
Communications and data processing	1,260	1,177	1,169
Amortization of intangibles	174	245	386
Other	2,304	2,167	1,971
Total non-interest expense	14,902	14,194	13,558
Income from continuing operations before income taxes	7,318	5,492	5,484
Income tax provision	1,293	3,375	1,714
Income from continuing operations, net of tax	6,025	2,117	3,770
Loss from discontinued operations, net of tax	(10)	(135)	(19)
Net income	6,015	1,982	3,751
Dividends and undistributed earnings allocated to participating securities	(40)	(13)	(24)
Preferred stock dividends	(265)	(265)	(214)
Net income available to common stockholders	$ 5,710	$ 1,704	$ 3,513
Basic earnings per common share:
Net income from continuing operations (in dollars per share)	$ 11.92	$ 3.80	$ 7.00
Income (loss) from discontinued operations (in dollars per share)	(0.02)	(0.28)	(0.04)
Net income per basic common share (in dollars per share)	11.90	3.52	6.96
Diluted earnings per common share:
Net income from continuing operations (in dollars per share)	11.84	3.76	6.93
Income (loss) from discontinued operations (in dollars per share)	(0.02)	(0.27)	(0.04)
Net income per diluted common share (in dollars per share)	$ 11.82	$ 3.49	$ 6.89

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 6,015	$ 1,982	$ 3,751
After Tax
Net unrealized gains (losses) on securities available for sale	(459)	21	(166)
Net changes in securities held to maturity	447	97	104
Net unrealized gains (losses) on cash flow hedges	(74)	(203)	(198)
Foreign currency translation adjustments	(39)	84	(79)
Other	(11)	24	6
Other comprehensive income (loss), net of tax	(136)	23	(333)
Comprehensive income	$ 5,879	$ 2,005	$ 3,418

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Cash and cash equivalents:
Cash and due from banks	$ 4,768	$ 4,458
Interest-bearing deposits and other short-term investments	8,418	9,582
Total cash and cash equivalents	13,186	14,040
Restricted cash for securitization investors	303	312
Securities available for sale	46,150	37,655
Securities held to maturity	36,771	28,984
Debt Securities, Available-for-sale and Held-to-maturity	82,921	66,639
Loans held for investment:
Total loans held for investment	245,899	254,473
Allowance for loan and lease losses	(7,220)	(7,502)
Net loans held for investment	238,679	246,971
Loans held for sale, at lower of cost or fair value	1,192	971
Premises and equipment, net	4,191	4,033
Interest receivable	1,614	1,536
Goodwill	14,544	14,533
Other assets	15,908	16,658
Total assets	372,538	365,693
Liabilities:
Interest payable	458	413
Deposits:
Non-interest-bearing deposits	23,483	26,404
Interest-bearing deposits	226,281	217,298
Total deposits	249,764	243,702
Securitized debt obligations	18,307	20,010
Other debt:
Federal funds purchased and securities loaned or sold under agreements to repurchase	352	576
Senior and subordinated notes	30,826	30,755
Other borrowings	9,420	8,940
Total other debt	40,598	40,271
Other liabilities	11,743	12,567
Total liabilities	320,870	316,963
Stockholders’ equity:
Preferred stock (par value $.01 per share; 50,000,000 shares authorized; 4,475,000 shares issued and outstanding as of both December 31, 2018 and 2017)	0	0
Common stock (par value $.01 per share; 1,000,000,000 shares authorized; 667,969,069 and 661,724,927 shares issued as of December 31, 2018 and 2017, respectively, 467,717,306 and 485,525,340 shares outstanding as of December 31, 2018 and 2017, respectively)	7	7
Additional paid-in capital, net	32,040	31,656
Retained earnings	35,875	30,700
Accumulated other comprehensive loss	(1,263)	(926)
Treasury stock, at cost (par value $.01 per share; 200,251,763 and 176,199,587 shares as of December 31, 2018 and 2017, respectively)	(14,991)	(12,707)
Total stockholders’ equity	51,668	48,730
Total liabilities and stockholders’ equity	372,538	365,693
Loans held in consolidated trusts
Loans held for investment:
Total loans held for investment	34,197	35,667
Unsecuritized loans held for investment
Cash and cash equivalents:
Total cash and cash equivalents	10,286	8,196
Loans held for investment:
Total loans held for investment	211,702	218,806
Other assets	1,250	729
Total assets	73,088	65,092
Other debt:
Senior and subordinated notes	19,518	14,392
Other borrowings	1,671	1,633
Other liabilities	231	337
Total liabilities	21,420	16,362
Stockholders’ equity:
Total stockholders’ equity	51,668	48,730
Total liabilities and stockholders’ equity	$ 73,088	$ 65,092

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	4,475,000	4,475,000
Preferred stock, shares outstanding	4,475,000	4,475,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	667,969,069	661,724,927
Common stock, shares outstanding	467,717,306	485,525,340
Treasury Stock, Par Value	$ 0.01	$ 0.01
Treasury stock, common, shares	200,251,763	176,199,587

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance at Dec. 31, 2015	$ 47,284	$ 0	$ 6	$ 29,655	$ 27,045	$ (616)	$ (8,806)
Beginning balance (shares) at Dec. 31, 2015		3,375,000	648,317,395
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	3,418				3,751	(333)
Common Stock Dividends, Shares			52,338
Dividends, Common Stock	(812)		$ 0		(816)
Dividends, Share-based Compensation, Stock				4
Cash dividends - preferred series	(214)				(214)
Purchases of treasury stock	(3,661)						(3,661)
Issuances of common stock and restricted stock, shares, net of forfeitures			3,272,745
Issuances of common stock and restricted stock, value, net of forfeitures	131		$ 1	130
Exercise of stock options and warrants, tax effects of exercises and restricted stock vesting, shares			2,094,129
Exercise of stock options and warrants, tax effects of exercises and restricted stock vesting, value	102		$ 0	102
Stock Issued During Period, Shares, New Issues		1,100,000
Stock Issued During Period, Value, New Issues	1,066	$ 0		1,066
Compensation expense for restricted stock awards, restricted stock units and stock options	200			200
Ending balance at Dec. 31, 2016	47,514	$ 0	$ 7	31,157	29,766	(949)	(12,467)
Ending balance (shares) at Dec. 31, 2016		4,475,000	653,736,607
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	2,005				1,982	23
Common Stock Dividends, Shares			42,613
Dividends, Common Stock	(780)		$ 0		(783)
Dividends, Share-based Compensation, Stock				3
Cash dividends - preferred series	(265)				(265)
Purchases of treasury stock	(240)						(240)
Issuances of common stock and restricted stock, shares, net of forfeitures			4,057,555
Issuances of common stock and restricted stock, value, net of forfeitures	164		$ 0	164
Exercise of stock options and warrants, tax effects of exercises and restricted stock vesting, shares			3,888,152
Exercise of stock options and warrants, tax effects of exercises and restricted stock vesting, value	124		$ 0	124
Compensation expense for restricted stock awards, restricted stock units and stock options	208			208
Ending balance at Dec. 31, 2017	48,730	$ 0	$ 7	31,656	30,700	(926)	(12,707)
Ending balance (shares) at Dec. 31, 2017		4,475,000	661,724,927
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effects from adoption of new accounting standards	0				201	(201)
Comprehensive income (loss)	5,879				6,015	(136)
Common Stock Dividends, Shares			35,813
Dividends, Common Stock	(773)		$ 0		(776)
Dividends, Share-based Compensation, Stock				3
Cash dividends - preferred series	(265)				(265)
Purchases of treasury stock	(2,284)						(2,284)
Issuances of common stock and restricted stock, shares, net of forfeitures			4,183,783
Issuances of common stock and restricted stock, value, net of forfeitures	175		$ 0	175
Exercise of stock options and warrants, tax effects of exercises and restricted stock vesting, shares			2,024,546
Exercise of stock options and warrants, tax effects of exercises and restricted stock vesting, value	38		$ 0	38
Compensation expense for restricted stock awards, restricted stock units and stock options	168			168
Ending balance at Dec. 31, 2018	$ 51,668	$ 0	$ 7	$ 32,040	$ 35,875	$ (1,263)	$ (14,991)
Ending balance (shares) at Dec. 31, 2018		4,475,000	667,969,069

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016
Statement of Stockholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 0.40	$ 0.40

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating activities:
Income from continuing operations, net of tax	$ 6,025	$ 2,117	$ 3,770
Loss from discontinued operations, net of tax	(10)	(135)	(19)
Net income	6,015	1,982	3,751
Adjustments to reconcile net income to net cash from operating activities:
Benefit for credit losses	5,856	7,551	6,459
Depreciation and amortization, net	2,396	2,440	2,428
Deferred tax provision (benefit)	714	1,434	(686)
Net securities losses (gains)	209	(65)	11
Gain on sales of loans	(548)	(72)	(80)
Stock-based compensation expense	170	244	239
Other	(125)	(8)	(11)
Loans held for sale:
Originations and purchases	(9,039)	(8,929)	(8,645)
Proceeds from sales and paydowns	8,442	9,595	8,390
Changes in operating assets and liabilities:
Changes in interest receivable	(74)	(157)	(159)
Changes in other assets	476	(714)	(1,907)
Changes in interest payable	45	85	28
Changes in other liabilities	(1,553)	1,157	2,013
Net change from discontinued operations	(6)	(361)	25
Net cash from operating activities	12,978	14,182	11,856
Securities available for sale:
Purchases	(14,022)	(12,412)	(14,154)
Proceeds from paydowns and maturities	7,510	7,213	7,867
Proceeds from sales	6,399	8,181	4,146
Securities held to maturity:
Purchases	(19,166)	(5,885)	(3,787)
Proceeds from paydowns and maturities	2,419	2,594	2,681
Loans:
Net changes in loans held for investment	1,015	(12,315)	(22,036)
Principal recoveries of loans previously charged off	2,503	1,951	1,493
Net purchases of premises and equipment	(874)	(1,018)	(779)
Net cash from acquisition activities	(600)	(3,187)	(629)
Net cash from other investing activities	(802)	(663)	(432)
Net cash from investing activities	(15,618)	(15,541)	(25,630)
Financing activities:
Changes in deposits	6,077	6,993	19,031
Issuance of securitized debt obligations	997	5,983	6,259
Maturities and paydowns of securitized debt obligations	(2,673)	(7,233)	(3,540)
Issuance of senior and subordinated notes and long-term FHLB advances	5,977	35,426	22,984
Maturities and paydowns of senior and subordinated notes and long-term FHLB advances	(14,163)	(36,554)	(24,170)
Changes in other borrowings	8,671	(400)	11
Common stock:
Net proceeds from issuances	175	164	131
Dividends paid	(773)	(780)	(812)
Preferred stock:
Net proceeds from issuances	0	0	1,066
Dividends paid	(265)	(265)	(214)
Purchases of treasury stock	(2,284)	(240)	(3,661)
Proceeds from share-based payment activities	38	124	142
Net cash from financing activities	1,777	3,218	17,227
Changes in cash, cash equivalents and restricted cash for securitization investors	(863)	1,859	3,453
Cash, cash equivalents and restricted cash for securitization investors, beginning of the period	14,352	12,493	9,040
Cash, cash equivalents and restricted cash for securitization investors, end of the period	13,489	14,352	12,493
Non-cash items:
Net transfers from loans held for investment to loans held for sale	855	674	552
Securitized debt obligations assumed in acquisition	0	2,484	0
Loans held for sale acquired by assuming other borrowings	0	283	0
Interest paid	3,933	2,772	2,250
Income tax paid	$ 407	$ 1,187	$ 2,121

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

NOTE 1—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The Company

Capital One Financial Corporation, a Delaware Corporation established in 1994 and headquartered in McLean, Virginia, is a diversified financial services holding company with banking and non-banking subsidiaries. Capital One Financial Corporation and its subsidiaries (the “Company”) offer a broad array of financial products and services to consumers, small businesses and commercial clients through branches, the internet and other distribution channels. As of December 31, 2018, our principal subsidiaries included:


•	Capital One Bank (USA), National Association (“COBNA”), which offers credit and debit card products, other lending products and deposit products; and


•	Capital One, National Association (“CONA”), which offers a broad spectrum of banking products and financial services to consumers, small businesses and commercial clients.

The Company is hereafter collectively referred to as “we,” “us” or “our.” COBNA and CONA are collectively referred to as the “Banks.”

We also offer products outside of the United States of America (“U.S.”) principally through Capital One (Europe) plc (“COEP”), an indirect subsidiary of COBNA organized and located in the United Kingdom (“U.K.”), and through a branch of COBNA in Canada. COEP has authority, among other things, to provide credit card loans. Our branch of COBNA in Canada also has the authority to provide credit card loans.

Our principal operations are organized for management reporting purposes into three major business segments, which are defined primarily based on the products and services provided or the type of customer served: Credit Card, Consumer Banking and Commercial Banking. We provide details on our business segments, the integration of recent acquisitions, if any, into our business segments and the allocation methodologies and accounting policies used to derive our business segment results in “Note 18—Business Segments and Revenue from Contracts with Customers.”

Basis of Presentation and Use of Estimates

The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. (“U.S. GAAP”). The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and in the related disclosures. These estimates are based on information available as of the date of the consolidated financial statements. While management makes its best judgments, actual amounts or results could differ from these estimates. Certain prior period amounts have been reclassified to conform to the current period presentation.

Principles of Consolidation

The consolidated financial statements include the accounts of Capital One Financial Corporation and all other entities in which we have a controlling financial interest. We determine whether we have a controlling financial interest in an entity by first evaluating whether the entity is a voting interest entity (“VOE”) or a variable interest entity (“VIE”). All significant intercompany account balances and transactions have been eliminated.

Voting Interest Entities

VOEs are entities that have sufficient equity and provide the equity investors voting rights that give them the power to make significant decisions relating to the entity’s operations. Since a controlling financial interest in an entity is typically obtained through ownership of a majority voting interest, we consolidate our majority-owned subsidiaries and other voting interest entities in which we hold, directly or indirectly, more than 50% of the voting rights or where we exercise control through other contractual rights.

in fair value recorded through net income, except those that do not have a readily determinable fair value (for which a measurement alternative can be elected). We report equity investments in other assets on our consolidated balance sheets and include our share of income or loss and dividends from those investments in other non-interest income in our consolidated statements of income.

Variable Interest Entities

VIEs are entities that, by design, either (i) lack sufficient equity to permit the entity to finance its activities without additional subordinated financial support from other parties; or (ii) have equity investors that do not have the ability to make significant decisions relating to the entity’s operations through voting rights, or do not have the obligation to absorb the expected losses, or do not have the right to receive the residual returns of the entity. The entity that has a controlling financial interest in a VIE is referred to as the primary beneficiary and is required to consolidate the VIE. An entity is deemed to be the primary beneficiary of a VIE if that entity has both (i) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance; and (ii) the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE.

In determining whether we are the primary beneficiary of a VIE, we consider both qualitative and quantitative factors regarding the nature, size and form of our involvement with the VIE, such as our role in establishing the VIE and our ongoing rights and responsibilities; our economic interests, including debt and equity investments, servicing fees and other arrangements deemed to be variable interests in the VIE; the design of the VIE, including the capitalization structure, subordination of interests, payment priority, relative share of interests held across various classes within the VIE’s capital structure and the reasons why the interests are held by us.

We perform on-going reassessments to evaluate whether changes in an entity’s capital structure or changes in the nature of our involvement with the entity result in a change to the VIE designation or a change to our consolidation conclusion. See “Note 6—Variable Interest Entities and Securitizations” for further details.

Cash and Cash Equivalents

Cash and cash equivalents include cash and due from banks, interest-bearing deposits and other short-term investments, all of which, if applicable, have stated maturities of three months or less when acquired.

Securities Resale and Repurchase Agreements

Securities purchased under resale agreements and securities loaned or sold under agreements to repurchase, principally U.S. government and agency obligations, are not accounted for as sales but as collateralized financing transactions and recorded at the amounts at which the securities were acquired or sold, plus accrued interest. We continually monitor the market value of these securities and deliver additional collateral to or obtain additional collateral from counterparties, as appropriate. See “Note 9—Deposits and Borrowings” for further details.

Investment Securities

Our investment portfolio consists primarily of the following: U.S. Treasury securities; U.S. government-sponsored enterprise or agency (“Agency”) and non-agency residential mortgage-backed securities (“RMBS”); Agency commercial mortgage-backed securities (“CMBS”); and other securities. The accounting and measurement framework for our investment securities differs depending on the security classification. We classify securities as available for sale or held to maturity based on our investment strategy and management’s assessment of our intent and ability to hold the securities until maturity. Securities that we may sell prior to maturity in response to changes in our investment strategy, liquidity needs, interest rate risk profile or for other reasons are classified as available for sale. Securities that we have the intent and ability to hold until maturity are classified as held to maturity.

We report securities available for sale on our consolidated balance sheets at fair value with unrealized gains or losses recorded, net of tax, as a component of accumulated other comprehensive income (“AOCI”). We report securities held to maturity on our consolidated balance sheets at carrying value, which generally equals amortized cost. Amortized cost reflects historical cost adjusted for amortization of premiums, accretion of discounts and any previously recorded impairments. Investment securities transferred into the held to maturity category from the available for sale category are recorded at fair value at the date of transfer. Any unrealized gains or losses at the transfer date are thereafter included in AOCI. Such unrealized gains or losses are accreted over the remaining life of the security and are expected to offset the amortization of the related premium or discount created upon the investment securities transfer into the held to maturity category, with no expected impact on future net income.

Unamortized premiums, discounts and other basis adjustments are recognized in interest income over the contractual lives of the securities using the effective interest method. We record purchases and sales of investment securities on a trade date basis. Realized gains or losses from the sale of debt securities are computed using the first in first out method of identification, and are included in non-interest income in our consolidated statements of income. If we intend to sell an available for sale security in an unrealized loss position or it is more likely than not that we will be required to sell the security prior to recovery of its amortized cost basis, the entire difference between the amortized cost basis of the security and its fair value is recognized in our consolidated statements of income.

We regularly evaluate our securities whose fair values have declined below amortized cost to assess whether the decline in fair value represents an other than temporary impairment (“OTTI”). We discuss our assessment and accounting for OTTI in “Note 3—Investment Securities.” We discuss the techniques we use in determining the fair value of our investment securities in “Note 17—Fair Value Measurement.”

Our investment portfolio also includes certain acquired debt securities that were deemed to be credit impaired at the acquisition date, and therefore are accounted for in accordance with accounting guidance for purchased credit-impaired (“PCI”) loans and debt securities. These securities are recorded at fair value at the acquisition date using the estimated cash flows we expect to collect discounted by the prevailing market interest rate. The difference between the contractually required payments due and the undiscounted cash flows we expect to collect at acquisition, considering the impact of prepayments, is referred to as the nonaccretable difference. The nonaccretable difference reflects estimated future credit losses expected to be incurred over the life of the security, and is recorded as a discount to the related debt security on our consolidated balance sheet. The excess of the undiscounted cash flows expected to be collected over the estimated fair value of credit-impaired debt securities at acquisition is referred to as the accretable yield, which is accreted into interest income using an effective yield method over the remaining life of the security. Further decreases in expected cash flows attributable to credit result in the recognition of OTTI. Significant increases in expected cash flows are recognized prospectively over the remaining life of the security as an adjustment to the accretable yield. See “Loans Acquired” section of this Note for further discussion of accounting guidance for PCI loans and debt securities.

Loans

Our loan portfolio consists of loans held for investment, including loans underlying our consolidated securitization trusts, and loans held for sale, and is divided into three portfolio segments: credit card, consumer banking and commercial banking loans. Credit card loans consist of domestic and international credit card loans. Consumer banking loans consist of auto and retail banking loans (see “Note 2—Business Developments” for information about our consumer home loan portfolio sale in 2018). Commercial banking loans consist of commercial and multifamily real estate, commercial and industrial, and small-ticket commercial real estate loans.

Loan Classification

Upon origination or purchase, we classify loans as held for investment or held for sale based on our investment strategy and management’s intent and ability with regard to the loans which may change over time. The accounting and measurement framework for loans differs depending on the loan classification, whether the loans are originated or purchased and whether purchased loans are considered credit-impaired at the date of acquisition. The presentation within the consolidated statements of cash flows is based on management’s intent at acquisition or origination. Cash flows related to loans held for investment are included in cash flows from investing activities on our consolidated statements of cash flows. Cash flows related to loans held for sale are included in cash flows from operating activities on our consolidated statements of cash flows.

Loans Held for Investment

Loans that we have the ability and intent to hold for the foreseeable future and loans associated with consolidated securitization transactions are classified as held for investment. Loans classified as held for investment, except PCI loans described below, are reported at their amortized cost, which is the outstanding principal balance, adjusted for any unearned income, unamortized deferred fees and costs, unamortized premiums and discounts and charge-offs. Credit card loans also include billed finance charges and fees, net of the estimated uncollectible amount.

Interest income is recognized on performing loans held for investment on an accrual basis. We defer loan origination fees and direct loan origination costs on originated loans, premiums and discounts on purchased loans and loan commitment fees. We recognize these amounts in interest income as yield adjustments over the life of the loan and/or commitment period using the

effective interest method. For credit card loans, loan origination fees and direct loan origination costs are amortized on a straight-line basis over a 12-month period. Loans held for investment are subject to our allowance for loan and lease losses methodology described below under “Allowance for Loan and Lease Losses.”

Loans Held for Sale

Loans purchased or originated with the intent to sell or for which we do not have the ability and intent to hold for the foreseeable future are classified as held for sale. These loans are recorded at the lower of cost or fair value. Loan origination fees, direct loan origination costs and any discounts and premiums are deferred until the loan is sold and are then recognized as part of the total gain or loss on sale. The fair value of loans held for sale is determined on an aggregate portfolio basis for each loan type.

If a loan is transferred from held for investment to held for sale, on the transfer date, any decline in fair value related to credit is recorded as a charge-off. Subsequent to transfer, we report write-downs or recoveries in fair value up to the carrying value at the date of transfer and realized gains or losses on loans held for sale in our consolidated statements of income as a component of other non-interest income. We calculate the gain or loss on loan sales as the difference between the proceeds received and the carrying value of the loans sold, net of the fair value of any residual interests retained.

Loans Acquired

All purchased loans, including loans transferred in a business combination, are initially recorded at fair value, which includes consideration of expected future losses, as of the date of the acquisition. To determine the fair value of loans at acquisition, we estimate discounted contractual cash flows due using an observable market rate of interest, when available, adjusted for factors that a market participant would consider in determining fair value. In determining fair value, contractual cash flows are adjusted to include prepayment estimates based upon trends in default rates and loss severities. The difference between the fair value and the contractual cash flows is recorded as a loan discount or premium at acquisition. Subsequent to acquisition, the loans are classified and accounted for as either held for investment or held for sale based on management’s ability and intent with regard to the loans. Loans held for investment are subject to our allowance for loan and lease losses methodology described below under “Allowance for Loan and Lease Losses.” We account for purchased loans under the accounting guidance for purchased credit-impaired loans and debt securities, which is based upon expected cash flows, if the purchased loans have a discount attributable, at least in part, to credit deterioration and they are not specifically scoped out of the guidance. We refer to these purchased loans that are subsequently accounted for based on expected cash flows to be collected as “PCI loans.” Other purchased loans that do not meet the criteria described above or are specifically scoped out of this guidance are accounted for based on contractual cash flows.

Loans Acquired and Accounted for Based on Expected Cash Flows

For PCI loans, the excess of cash flows expected to be collected over the estimated fair value of purchased loans is referred to as the accretable yield. This amount is not recorded on our consolidated balance sheets, but is accreted into interest income over the life of the loan, or pool of loans, using the effective interest method. The difference between total contractual payments on the loans and all expected cash flows represents the nonaccretable difference or the amount of principal and interest not considered collectible. We may aggregate loans acquired in the same fiscal quarter into one or more pools if the loans have common risk characteristics. A pool is then accounted for as a single asset, with a single composite interest rate and an aggregate fair value and expected cash flows.

Subsequent to acquisition, changes in the estimated cash flows expected to be collected may result in changes in the accretable yield and nonaccretable difference or reclassifications from the nonaccretable difference to the accretable yield. Decreases in expected cash flows resulting from credit deterioration subsequent to acquisition will generally result in an impairment charge recognized in our provision for credit losses and an increase in the allowance for loan and lease losses. Significant increases in the cash flows expected to be collected would first reduce any previously recorded allowance for loan and lease losses. The excess over the recorded allowance for loan and lease losses would result in a reclassification to the accretable yield from the nonaccretable difference and an increase in interest income recognized over the remaining life of the loan or pool of loans. Disposals of loans in the form of sales to third parties, receipt of payment in full or in part by the borrower, and foreclosure of the collateral, result in removal of the loan from the PCI loans portfolio. See “Note 4—Loans” for additional information.

Loan Modifications and Restructurings

As part of our loss mitigation efforts, we may provide modifications to a borrower experiencing financial difficulty to improve long-term collectability of the loan and to avoid the need for foreclosure or repossession of collateral. A loan modification in which a concession is granted to a borrower experiencing financial difficulty is accounted for and reported as a troubled debt restructuring (“TDR”). Our loan modifications typically include an extension of the loan term, a reduction in the interest rate, a reduction in the loan balance, or a combination of these concessions. We describe our accounting for and measurement of impairment on TDR loans below under “Impaired Loans.” See “Note 4—Loans” for additional information on our loan modifications and restructurings.

Delinquent and Nonperforming Loans

The entire balance of a loan is considered contractually delinquent if the minimum required payment is not received by the first statement cycle date equal to or following the due date specified on the customer’s billing statement. Delinquency is reported on loans that are 30 or more days past due. Interest and fees continue to accrue on past due loans until the date the loan is placed on nonaccrual status, if applicable. We generally place loans on nonaccrual status when we believe the collectability of interest and principal is not reasonably assured.

Nonperforming loans generally include loans that have been placed on nonaccrual status, but we do not report loans classified as held for sale as nonperforming.

Our policies for classifying loans as nonperforming, by loan category, are as follows:

•

Credit card loans: As permitted by regulatory guidance issued by the Federal Financial Institutions Examination Council (“FFIEC”), our policy is generally to exempt credit card loans from being classified as nonperforming, as these loans are generally charged off in the period the account becomes 180 days past due. Consistent with industry conventions, we generally continue to accrue interest and fees on delinquent credit card loans until the loans are charged-off.


•	Consumer banking loans: We classify consumer banking loans as nonperforming when we determine that the collectability of all interest and principal on the loan is not reasonably assured, generally when the loan becomes 90 days past due.


•	Commercial banking loans: We classify commercial banking loans as nonperforming as of the date we determine that the collectability of all interest and principal on the loan is not reasonably assured.


•	Modified loans and troubled debt restructurings: Modified loans, including TDRs, that are current at the time of the restructuring remain on accrual status if there is demonstrated performance prior to the restructuring and continued performance under the modified terms is expected. Otherwise, the modified loan is classified as nonperforming.


•	PCI loans: PCI loans are not classified as delinquent or nonperforming.

Interest and fees accrued but not collected at the date a loan is placed on nonaccrual status are reversed against earnings. In addition, the amortization of net deferred loan fees is suspended. Interest and fee income is subsequently recognized only upon the receipt of cash payments. However, if there is doubt regarding the ultimate collectability of loan principal, cash received is generally applied against the principal balance of the loan. Nonaccrual loans are generally returned to accrual status when all principal and interest is current and repayment of the remaining contractual principal and interest is reasonably assured, or when the loan is both well-secured and in the process of collection and collectability is no longer doubtful.

Impaired Loans

A loan is considered impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due from the borrower in accordance with the original contractual terms of the loan. Generally, we report loans as impaired based on the method for measuring impairment in accordance with applicable accounting guidance. Loans held for sale are not reported as impaired, as these loans are recorded at lower of cost or fair value. Impaired loans also exclude PCI loans, as these loans are accounted for based on expected cash flows at acquisition because this accounting methodology takes into consideration future credit losses.

Loans defined as individually impaired, based on applicable accounting guidance, include larger-balance nonperforming loans and TDR loans. Loans modified in a TDR continue to be reported as impaired until maturity. Our policies for identifying loans as individually impaired, by loan category, are as follows:


•	Credit card loans: Credit card loans that have been modified in a troubled debt restructuring are identified and accounted for as individually impaired.


•	Consumer banking loans: Consumer loans that have been modified in a troubled debt restructuring are identified and accounted for as individually impaired.


•	Commercial banking loans: Commercial loans classified as nonperforming and commercial loans that have been modified in a troubled debt restructuring are reported as individually impaired.

The majority of individually impaired loans are evaluated for an asset-specific allowance. We generally measure impairment and the related asset-specific allowance for individually impaired loans based on the difference between the recorded investment of the loan and the present value of the expected future cash flows, discounted at the original effective interest rate of the loan at the time of modification. If the loan is collateral dependent, we measure impairment based upon the fair value of the underlying collateral, which we determine based on the current fair value of the collateral less estimated selling costs. Loans are identified as collateral dependent if we believe the collateral will be the primary source of repayment.

Charge-Offs

We charge off loans as a reduction to the allowance for loan and lease losses when we determine the loan is uncollectible and record subsequent recoveries of previously charged off amounts as an increase to the allowance for loan and lease losses. We exclude accrued and unpaid finance charges and fees and certain fraud losses from charge-offs. Costs to recover charged-off loans are recorded as collection expense and included in our consolidated statements of income as a component of other non-interest expense as incurred. Our charge-off time frames by loan type are presented below.

•

Credit card loans: We generally charge-off credit card loans in the period the account becomes 180 days past due. We charge off delinquent credit card loans for which revolving privileges have been revoked as part of loan workout when the account becomes 120 days past due. Credit card loans in bankruptcy are generally charged-off by the end of the month following 30 days after the receipt of a complete bankruptcy notification from the bankruptcy court. Credit card loans of deceased account holders are charged-off by the end of the month following 60 days of receipt of notification.

•

Consumer banking loans: We generally charge-off consumer banking loans at the earlier of the date when the account is a specified number of days past due or upon repossession of the underlying collateral. Our charge-off time frame is 180 days for home loans and 120 days for auto loans. Small business banking loans generally charge off at 120 days past due based on when unpaid principal loan amounts are deemed uncollectible. We calculate the initial charge-off amount for home loans based on the excess of our recorded investment in the loan over the fair value of the underlying property less estimated selling costs as of the date of the charge-off. We update our home value estimates on a regular basis and may recognize additional charge-offs for subsequent declines in home values. Auto and home loans where the borrower has filed for bankruptcy and the loan has not been reaffirmed charge off in the period that the loan is 60 days from the bankruptcy notification date, regardless of delinquency status. Auto and home loans that have not been charged off and have been discharged under Chapter 7 bankruptcy are charged off at the end of the month in which the bankruptcy discharge occurs. Remaining consumer loans generally are charged off within 40 days of receipt of notification from the bankruptcy court. Consumer loans of deceased account holders are charged off by the end of the month following 60 days of receipt of notification.


•	Commercial banking loans: We charge off commercial loans in the period we determine that the unpaid principal loan amounts are uncollectible.


•	PCI loans: We do not record charge-offs on PCI loans that are meeting or exceeding our performance expectations as of the date of acquisition, as the fair values of these loans already reflect a discount for expected future credit losses. We record charge-offs on PCI loans only if actual losses exceed estimated credit losses incorporated into the fair value recorded at acquisition.

Allowance for Loan and Lease Losses

We maintain an allowance for loan and lease losses (“allowance”) that represents management’s best estimate of incurred loan and lease losses inherent in our held for investment portfolio as of each balance sheet date. The provision for credit losses reflects credit losses we believe have been incurred and will eventually be recognized over time in our charge-offs. Charge-offs of uncollectible amounts are deducted from the allowance and subsequent recoveries are added back.

Management performs a quarterly analysis of our loan portfolio to determine if impairment has occurred and to assess the adequacy of the allowance based on historical and current trends as well as other factors affecting credit losses. We apply documented systematic methodologies to separately calculate the allowance for our consumer loan and commercial loan portfolios. Our allowance for loan and lease losses consists of three components that are allocated to cover the estimated probable losses in each loan portfolio based on the results of our detailed review and loan impairment assessment process: (i) a component for loans collectively evaluated for impairment; (ii) an asset-specific component for individually impaired loans; and (iii) a component related to PCI loans that have experienced significant decreases in expected cash flows subsequent to acquisition. Each of our allowance components is supplemented by an amount that represents management’s qualitative judgment of the imprecision and risks inherent in the processes and assumptions used in establishing the allowance. Management’s judgment involves an assessment of subjective factors, such as process risk, modeling assumption and adjustment risks and probable internal and external events that will likely impact losses.

Our credit card and consumer loan portfolios consist of smaller-balance, homogeneous loans. The consumer loan portfolio is divided into two primary portfolio segments: auto loans and retail banking loans (see “Note 2—Business Developments” for information about our consumer home loan portfolio sale in 2018). The credit card and consumer loan portfolios are further divided by our business units into groups based on common risk characteristics, such as origination year, contract type, interest rate and geography, which are collectively evaluated for impairment. The commercial loan portfolio is primarily composed of larger-balance, non-homogeneous loans. These loans are subject to individual reviews that result in internal risk ratings. In assessing the risk rating of a particular loan, among the factors we consider are the financial condition of the borrower, geography, collateral performance, historical loss experience, and industry-specific information that management believes is relevant in determining the occurrence of a loss event and measuring impairment. These factors are based on an evaluation of historical and current information, and involve subjective assessment and interpretation. Emphasizing one factor over another or considering additional factors could impact the risk rating assigned to that loan.

The component of the allowance related to credit card and consumer loans that we collectively evaluate for impairment is based on a statistical calculation, which is supplemented by management judgment as described above. Because of the homogeneous nature of our consumer loan portfolios, the allowance is based on the aggregated portfolio segment evaluations. The allowance is established through a process that begins with estimates of incurred losses in each pool based upon various statistical analyses. Loss forecast models are utilized to estimate probable losses incurred and consider several portfolio indicators including, but not limited to, historical loss experience, account seasoning, the value of collateral underlying secured loans, estimated foreclosures or defaults based on observable trends, delinquencies, bankruptcy filings, unemployment, credit bureau scores and general economic and business trends. Management believes these factors are relevant in estimating probable losses incurred and also considers an evaluation of overall portfolio credit quality based on indicators such as changes in our credit evaluation, underwriting and collection management policies, the effect of other external factors such as competition and legal and regulatory requirements, general economic conditions and business trends, and uncertainties in forecasting and modeling techniques used in estimating our allowance. We update our credit card and consumer loss forecast models and portfolio indicators on a quarterly basis to incorporate information reflective of the current economic environment.

The component of the allowance for commercial loans that we collectively evaluate for impairment is based on our historical loss experience for loans with similar risk characteristics and consideration of the current credit quality of the portfolio, which is supplemented by management judgment as described above. We apply internal risk ratings to commercial loans, which we use to assess credit quality and derive a total loss estimate based on an estimated probability of default (“default rate”) and loss given default (“loss severity”). Management may also apply judgment to adjust the loss factors derived, taking into consideration both quantitative and qualitative factors, including general economic conditions, industry-specific and geographic trends, portfolio concentrations, trends in internal credit quality indicators, and current and past underwriting standards that have occurred but are not yet reflected in the historical data underlying our loss estimates.

The asset-specific component of the allowance covers smaller-balance homogeneous credit card and consumer loans whose terms have been modified in a TDR and larger-balance nonperforming, non-homogeneous commercial loans. As discussed above under “Impaired Loans,” we generally measure the asset-specific component of the allowance based on the difference between the recorded investment of individually impaired loans and the present value of expected future cash flows. The asset-specific component of the allowance for smaller-balance impaired loans is calculated on a pool basis using historical loss experience for the respective class of assets. The asset-specific component of the allowance for larger-balance impaired loans is individually calculated for each loan. Key considerations in determining the allowance include the borrower’s overall financial condition, resources and payment history, prospects for support from financially responsible guarantors, and when applicable, the estimated realizable value of any collateral.

Applicable accounting guidance prohibits the carry over or creation of valuation allowances in the initial accounting for impaired loans acquired. See “Note 4—Loans” for information on loan portfolios associated with acquisitions.

In addition to the allowance, we also estimate probable losses related to contractually binding unfunded lending commitments, such as letters of credit, financial guarantees, and binding unfunded loan commitments. The provision for unfunded lending commitments is included in the provision for credit losses in our consolidated statements of income and the related reserve is included in other liabilities on our consolidated balance sheets. Unfunded lending commitments are subject to individual reviews and are analyzed and segregated by risk according to our internal risk rating scale, which we use to assess credit quality and derive a total loss estimate. We assess these risk classifications, taking into consideration both quantitative and qualitative factors, including historical loss experience, utilization assumptions, current economic conditions, performance trends within specific portfolio segments and other pertinent information to estimate the reserve for unfunded lending commitments.

Determining the appropriateness of the allowance is complex and requires judgment by management about the effect of matters that are inherently uncertain. Subsequent evaluations of the loan portfolio, in light of the factors then prevailing, may result in significant changes in the allowance and the reserve for unfunded lending commitments in future periods. See “Note 5—Allowance for Loan and Lease Losses and Reserve for Unfunded Lending Commitments” for additional information.

Securitization of Loans

Our loan securitization activities primarily involve the securitization of credit card loans, which provides a source of funding for us. See “Note 6—Variable Interest Entities and Securitizations” for additional details. Loan securitization involves the transfer of a pool of loan receivables from our portfolio to a trust. The trust then sells an undivided interest in the pool of loan receivables to third-party investors through the issuance of debt securities and transfers the proceeds from the debt issuance to us as consideration for the loan receivables transferred. The debt securities are collateralized by the receivables transferred from our portfolio. We remove loans from our consolidated balance sheets when securitizations qualify as sales to non-consolidated VIEs, recognize assets retained and liabilities assumed at fair value and record a gain or loss on the transferred loans. Alternatively, when the transfer does not qualify as a sale but instead is considered a secured borrowing, the assets will remain on our consolidated balance sheets with an offsetting liability recognized for the amount of proceeds received.

Premises and Equipment

Premises and equipment, including leasehold improvements, are carried at cost less accumulated depreciation and amortization. Land is carried at cost. We capitalize direct costs incurred during the application development stage of internally developed software projects. Depreciation and amortization expenses are calculated using the straight-line method over the estimated useful lives of the assets. Useful lives for premises and equipment are estimated as follows:



Premises and Equipment		Useful Lives
Buildings and improvements		5-39 years
Furniture and equipment		3-10 years
Computer software		3 years
Leasehold improvements		Lesser of the useful life or the remaining fixed non-cancelable lease term

Expenditures for maintenance and repairs are expensed as incurred and gains or losses upon disposition are recognized in our consolidated statements of income as realized. See “Note 8—Premises, Equipment and Lease Commitments” for additional information.

Goodwill and Intangible Assets

Goodwill represents the excess of the acquisition price of an acquired business over the fair value of assets acquired and liabilities assumed and is assigned to one or more reporting units at the date of acquisition. A reporting unit is defined as an operating segment, or a business unit that is one level below an operating segment. We have four reporting units: Credit Card, Auto, Other Consumer Banking and Commercial Banking. Goodwill is not amortized but is tested for impairment at the reporting unit level annually or more frequently if adverse circumstances indicate that it is more likely than not that the carrying amount of a reporting unit exceeds its fair value. These indicators could include a sustained, significant decline in the Company’s stock price, a decline in expected future cash flows, significant disposition activity, a significant adverse change in the economic or business environment, and the testing for recoverability of a significant asset group, among others.

Intangible assets with finite useful lives are amortized on either an accelerated or straight-line basis over their estimated useful lives and are evaluated for impairment whenever events or changes in circumstances indicate the carrying amount of the assets may not be recoverable. See “Note 7—Goodwill and Intangible Assets” for additional information.

Mortgage Servicing Rights

Mortgage servicing rights (“MSRs”) are initially recorded at fair value when mortgage loans are sold or securitized in the secondary market and the right to service these loans is retained for a fee. Subsequently, our consumer MSRs are carried at fair value on our consolidated balance sheets with changes in fair value recognized in non-interest income. Our commercial MSRs are subsequently accounted for under the amortization method and are periodically evaluated for impairment, which is recognized as a reduction in non-interest income. See “Note 7—Goodwill and Intangible Assets” and “Note 17—Fair Value Measurement” for additional information.

Foreclosed Property and Repossessed Assets

Foreclosed property and repossessed assets obtained through our lending activities typically include commercial and residential real estate or personal property, such as automobiles, and are recorded at net realizable value. For home loans collateralized by residential real estate, we reclassify loans to foreclosed property at the earlier of when we obtain legal title to the residential real estate property or when the borrower conveys all interest in the property to us. For foreclosed property and repossessed assets, we generally reclassify the loan to repossessed assets upon repossession of the property in satisfaction of the loan. Net realizable value is the estimated fair value of the underlying collateral less estimated selling costs and is based on appraisals, when available. Subsequent to initial recognition, foreclosed property and repossessed assets are recorded at the lower of our initial cost basis or net realizable value, which is routinely monitored and updated. Any changes in net realizable value and gains or losses realized from disposition of the property are recorded in other non-interest expense. See “Note 17—Fair Value Measurement” for details.

Restricted Equity Investments

We have investments in Federal Home Loan Banks (“FHLB”) stock and in the Board of Governors of the Federal Reserve System (“Federal Reserve”) stock. These investments, which are included in other assets on our consolidated balance sheets, are not marketable, are carried at cost, and are reviewed for impairment.

Litigation

In accordance with the current accounting standards for loss contingencies, we establish reserves for litigation-related matters, including mortgage representation and warranty related matters, that arise from the ordinary course of our business activities when it is probable that a loss associated with a claim or proceeding has been incurred and the amount of the loss can be reasonably estimated. See “Note 19—Commitments, Contingencies, Guarantees and Others” for additional information.

Customer Rewards Reserve

We offer products, primarily credit cards, which include programs that allow members to earn rewards based on account activity that can be redeemed for cash (primarily in the form of statement credits), gift cards, travel, or covering eligible charges. The amount of reward that a customer earns varies based on the terms and conditions of the rewards program and product. When rewards are earned by a customer, rewards expense is generally recorded as an offset to interchange income, with a corresponding increase to the customer rewards reserve. The customer rewards reserve is computed based on the estimated future cost of earned rewards that are expected to be redeemed and is reduced as rewards are redeemed. In estimating the customer rewards reserve, we consider historical redemption and spending behavior, as well as the terms and conditions of the current rewards programs, among other factors. We expect the vast majority of all rewards earned will eventually be redeemed. The customer rewards reserve, which is included in other liabilities on our consolidated balance sheets, totaled $4.3 billion and $3.9 billion as of December 31, 2018 and 2017, respectively.

Revenue Recognition

Interest Income and Fees

Interest income and fees on loans and investment securities are recognized based on the contractual provisions of the underlying arrangements.

Loan origination fees and costs and premiums and discounts on loans held for investment are deferred and generally amortized into interest income as yield adjustments over the contractual life and/or commitment period using the effective interest method. In certain circumstances, we elect to factor prepayment estimates into the calculation of the constant effective yield necessary to apply the interest method. Prepayment estimates are based on historical prepayment data, existing and forecasted interest rates, and economic data. For credit card loans, loan origination fees and direct loan origination costs are amortized on a straight-line basis over a 12-month period.

Unamortized premiums, discounts and other basis adjustments on investment securities are recognized in interest income over the contractual lives of the securities using the effective interest method.

Finance charges and fees on credit card loans are recorded in revenue when earned. Billed finance charges and fees on credit card loans are included in loan receivables net of amounts that we consider uncollectible. Unbilled finance charges and fees on credit card loans are included in interest receivables. Annual membership fees are deferred and amortized into income over 12 months on a straight-line basis. We continue to accrue finance charges and fees on credit card loans until the account is charged-off. Our methodology for estimating the uncollectible portion of billed finance charges and fees is consistent with the methodology we use to estimate the allowance for incurred principal losses on our credit card loan receivables.

Interchange Income

Interchange income represents fees for standing ready to authorize and providing settlement on credit and debit card transactions processed through the MasterCard® (“MasterCard”) and Visa® (“Visa”) interchange networks. The levels and structure of interchange rates are set by MasterCard and Visa and can vary based on cardholder purchase volumes. We recognize interchange income upon settlement with the interchange networks. See “Note 18—Business Segments and Revenue from Contracts with Customers” for additional details.

Card Partnership Agreements

Our partnership agreements relate to alliances with retailers and other partners to provide lending and other services to mutual customers. We primarily issue private-label and cobrand credit card loans to these customers over the term of the partnership agreements, which typically range from two years to ten years.

Certain partners assist in or perform marketing activities on our behalf and promote our products and services to their customers. As compensation for providing these services, we often pay royalties, bounties or other special bonuses to these partners. Depending upon the nature of the payments, they are recorded as a reduction of revenue, marketing expenses or other operating expenses. Credit card partnership agreements may also provide for profit or revenue sharing which are presented as a reduction of the related revenue line item when owed to the partner.

When a partner agrees to share a portion of the credit losses associated with the partnership, we must determine whether to report the sharing of losses on a gross or net basis in our consolidated financial statements. We evaluate the contractual provisions for the loss share payments and applicable accounting guidance to determine the manner in which to report the impact of the partnership agreement in our consolidated financial statements. Our consolidated net income is the same regardless of whether revenue and loss sharing arrangements are reported on a gross or net basis.

When loss sharing amounts due from partners are presented on a net basis, they are recorded as a reduction to our provision for credit losses in our consolidated statements of income and reduce the charge-off amounts that we report. The allowance for loan and lease losses attributable to these portfolios is also reduced by the expected reimbursements from these partners for loss sharing amounts. See “Note 5—Allowance for Loan and Lease Losses and Reserve for Unfunded Lending Commitments” for additional information related to our loss sharing arrangements. For loss sharing arrangements presented on a gross basis, any loss share payments due from the partner are recorded as a part of revenue, and the allowance for loan and lease losses is not reduced by the expected loss share reimbursements.

Collaborative Arrangements

A collaborative arrangement is a contractual arrangement that involves a joint operating activity between two or more parties that are active participants in the activity. These parties are exposed to significant risks and rewards based upon the economic success of the joint operating activity. We assess each of our partnership agreements with profit, revenue or loss sharing payments to determine if a collaborative arrangement exists and, if so, how revenue generated from third parties, costs incurred and transactions between participants in the collaborative arrangement should be accounted for and reported on our consolidated financial statements. We currently have one partnership agreement that meets the definition of a collaborative agreement.

We share a fixed percentage of revenues, consisting of finance charges and late fees, with the partner, and the partner is required to reimburse us for a fixed percentage of credit losses incurred. Revenues and losses related to the partner’s credit card program and partnership agreement are reported on a net basis in our consolidated financial statements. Revenue sharing amounts attributable to the partner are recorded as an offset against total net revenue in our consolidated statements of income. Interest income was reduced by $1.3 billion in 2018 and $1.2 billion in both 2017 and 2016, for amounts earned by the partner, as part of the partnership agreement. The impact of all of our loss sharing arrangements that are presented on a net basis is included in “Note 5—Allowance for Loan and Lease Losses and Reserve for Unfunded Lending Commitments.”

Stock-Based Compensation

We reserve common shares for issuance to employees, directors and third-party service providers, in various forms, including stock options, stock appreciation rights, restricted stock awards and units and performance share awards and units. In addition, we also issue cash equity units and cash-settled restricted stock units which are not counted against the common shares reserved for issuance or available for issuance because they are settled in cash.

For awards settled in shares, we generally recognize compensation expense on a straight-line basis over the award’s requisite service period based on the fair value of the award at the grant date. If an award settled in shares contains a performance condition with graded vesting, we recognize compensation expense using the accelerated attribution method. Equity units and restricted stock units that are cash-settled are accounted for as liability awards which results in quarterly expense fluctuations based on changes in our stock price through the date that the awards are settled. Awards that continue to vest after retirement are expensed over the shorter of the time period between the grant date and the final vesting period or between the grant date and when the participant becomes retirement eligible. Awards to participants who are retirement eligible at the grant date are subject to immediate expense recognition. Stock-based compensation expense is included in salaries and associate benefits in the consolidated statements of income.

Stock-based compensation expense for equity classified stock options is based on the grant date fair value, which is estimated using a Black-Scholes option pricing model. Significant judgment is required when determining the inputs into the fair value model. For awards other than stock options, the fair value of stock-based compensation used in determining compensation expense will generally equal the fair market value of our common stock on the date of grant. Certain share-settled awards have discretionary vesting conditions which result in the remeasurement of these awards at fair value each reporting period and the potential for compensation expense to fluctuate with changes in our stock price. See “Note 14—Stock-Based Compensation Plans” for additional details.

Marketing Expenses

We expense marketing costs as incurred.

Income Taxes

We recognize the current and deferred tax consequences of all transactions that have been recognized in the financial statements using the provisions of the enacted tax laws. Current income tax expense represents our estimated taxes to be paid or refunded for the current period and includes income tax expense related to our uncertain tax positions, as well as tax-related interest and penalties. Deferred tax assets and liabilities are determined based on differences between the financial reporting and tax basis of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. We record valuation allowances to reduce deferred tax assets to the amount that is more likely than not to be realized. We record the effect of remeasuring deferred tax assets and liabilities due to a change in tax rates or laws as a component of income tax expense related to continuing operations for the period in which the change is enacted. We subsequently release income tax effects stranded in AOCI using a portfolio approach. Income tax benefits are recognized when, based on their technical merits, they are more likely than not to be sustained upon examination. The amount recognized is the largest amount of benefit that is more likely than not to be realized upon settlement. See “Note 16—Income Taxes” for additional details.

Earnings Per Share

We calculate basic earnings per share by dividing net income, after deducting dividends on preferred stock and participating securities as well as undistributed earnings allocated to participating securities, by the average number of common shares outstanding during the period, net of any treasury shares. We calculate diluted earnings per share in a similar manner after consideration of the potential dilutive effect of common stock equivalents on the average number of common shares outstanding during the period. Common stock equivalents include warrants, stock options, restricted stock awards and units, and performance share awards and units. Common stock equivalents are calculated based upon the treasury stock method using an average market price of common shares during the period. Dilution is not considered when a net loss is reported. Common stock equivalents that have an antidilutive effect are excluded from the computation of diluted earnings per share. See “Note 13—Earnings Per Common Share” for additional details.

Derivative Instruments and Hedging Activities

All derivative financial instruments, whether designated for hedge accounting or not, are reported at their fair value on our consolidated balance sheets as either assets or liabilities, with consideration of legally enforceable master netting arrangements that allow us to net settle positive and negative positions and offset cash collateral with the same counterparty. We report net derivatives in a gain position, or derivative assets, on our consolidated balance sheets as a component of other assets. We report net derivatives in a loss position, or derivative liabilities, on our consolidated balance sheets as a component of other liabilities. See “Note 10—Derivative Instruments and Hedging Activities” for additional details.

Fair Value

Fair value, also referred to as an exit price, is defined as the price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date. The fair value accounting guidance provides a three-level fair value hierarchy for classifying financial instruments. This hierarchy is based on whether the inputs to the valuation techniques used to measure fair value are observable or unobservable. Fair value measurement of a financial asset or liability is assigned to a level based on the lowest level of any input that is significant to the fair value measurement in its entirety. The three levels of the fair value hierarchy are described below:



Level 1:		Valuation is based on quoted prices (unadjusted) in active markets for identical assets or liabilities.
Level 2:		Valuation is based on observable market-based inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Level 3:		Valuation is generated from techniques that use significant assumptions not observable in the market. Valuation techniques include pricing models, discounted cash flow methodologies or similar techniques.

The accounting guidance for fair value requires that we maximize the use of observable inputs and minimize the use of unobservable inputs in determining fair value. The accounting guidance also provides for the irrevocable option to elect, on a contract-by-contract basis, to measure certain financial assets and liabilities at fair value at inception of the contract and record any subsequent changes to fair value in the consolidated statements of income. We have not made any material fair value option elections as of and for the years ended December 31, 2018, 2017 and 2016. See “Note 17—Fair Value Measurement” for additional information.

Accounting for Acquisitions

We account for business combinations under the acquisition method of accounting. Under the acquisition method, tangible and intangible identifiable assets acquired, liabilities assumed and any noncontrolling interest in the acquiree are recorded at fair value as of the acquisition date, with limited exceptions. Transaction costs and costs to restructure the acquired company are expensed as incurred. Goodwill is recognized as the excess of the acquisition price over the estimated fair value of the identifiable net assets acquired. Likewise, if the fair value of the net assets acquired is greater than the acquisition price, a bargain purchase gain is recognized and recorded in other non-interest income.

If the acquired set of activities and assets do not meet the accounting definition of a business, the transaction is accounted for as an asset acquisition. In an asset acquisition, the assets acquired are recorded at the purchase price plus any transaction costs incurred and no goodwill is recognized.

Newly Adopted Accounting Standards



Standard	Guidance	Adoption Timing and Financial Statements Impacts
Accounting Implications of the Tax Act Accounting Standards Update (“ASU”) No. 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 Issued March 2018	Codifies the SEC Staff views expressed in Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act. Addresses situations where an entity’s accounting for the income tax effects of the Tax Act is incomplete upon issuance of the entity’s financial statements for the reporting period in which the Tax Act was enacted.	We adopted this standard in the first quarter of 2018. In accordance with Staff Accounting Bulletin No. 118, we included certain provisional amounts for the income tax effects of the Tax Act in our consolidated financial statements as of and for the year ended December 31, 2017. As of December 2018, we completed our accounting for the income tax effects of the Tax Act. We did not have any significant measurement period adjustments in the year ended December 31, 2018.

Reclassification of Stranded Tax Effects ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income Issued February 2018	Allows a one-time reclassification from AOCI to retained earnings for tax effects stranded in AOCI as a result of the Tax Act.	We early adopted this standard in the first quarter of 2018, resulting in a decrease to AOCI and an increase to retained earnings of $173 million. Our reclassification included the effects of the reduction in the federal corporate income tax rate enacted by the Tax Act and the resulting impacts on the federal benefit of deducting state income taxes.

Hedge Accounting Improvements ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities Issued August 2017	Eliminates the concept of separately measuring and reporting hedge ineffectiveness. Requires entities to present the earnings effect of a hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported. For a closed pool of pre-payable financial assets, allows entities to hedge an amount that is not expected to be affected by prepayments, defaults and other events under the “last-of-layer” method. Permits a one-time reclassification of debt securities eligible to be hedged under the “last-of-layer” method from held to maturity to available for sale upon adoption.	We early adopted this standard in the first quarter of 2018 under the modified retrospective transition method. As permitted by this standard, and in order to optimize our investment portfolio management for capital and risk management considerations, we made a one-time election to transfer $9.0 billion of held to maturity securities eligible to be hedged under the “last-of-layer” method to the available for sale category, resulting in an increase to AOCI of $82 million after-tax ($107 million pre-tax). See “Note 3—Investment Securities” and “Note 10—Derivative Instruments and Hedging Activities” for additional information on the impacts of the transfer, as well as the disclosures required under the new guidance.

Statement of Cash Flows Classification ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments Issued August 2016	Clarifies or creates guidance for eight specific transactions to reduce the identified diversity in practice when presenting or classifying the transactions in the statement of cash flows.	We adopted this standard in the first quarter of 2018 under the retrospective transition method and our adoption did not have a material impact on our consolidated financial statements.



Standard	Guidance	Adoption Timing and Financial Statements Impacts
Recognition and Measurement ASU No. 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities Issued January 2016	Requires entities to measure equity investments at fair value with changes in fair value recorded through net income, except those accounted for under the equity method of accounting, or those that do not have a readily determinable fair value (for which a measurement alternative can be elected).	We adopted this standard in the first quarter of 2018 under the modified retrospective transition method and our adoption did not have a material impact on our consolidated financial statements.

Revenue Recognition ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Issued May 2014	Replaces significant portions of existing industry and transaction-specific revenue recognition rules with a more principles-based recognition model. Most revenue associated with financial instruments, including interest income, loan origination fees and credit card fees, is outside the scope of the guidance. Gains and losses on investment securities, derivatives and sales of financial instruments are similarly excluded from the scope.	We adopted this standard in the first quarter of 2018 under the modified retrospective transition method. We determined interchange fees earned on credit and debit card transactions, net of any related customer rewards, are in the scope of the amended guidance. We assessed the impact of the new guidance by evaluating our contracts, identifying our performance obligations, determining when the performance obligations were satisfied to allow us to recognize revenue and determining the amount of revenue to recognize. As a result of this analysis, we determined our recognition, measurement and presentation of interchange fees net of customer rewards costs will remain consistent with our past practices. Our adoption did not have a material impact on our consolidated financial statements. See “Note 18—Business Segments and Revenue from Contracts with Customers” for the new disclosures required under this guidance.

Accounting Standards Issued but Not Adopted as of December 31, 2018



Standard	Guidance	Accounting Standards Issued but Not Adopted as of December 31, 2018
Cloud Computing ASU No. 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract Issued August 2018	Aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license).	Effective January 1, 2020, with early adoption permitted, using either the retrospective or prospective method of adoption. We plan to adopt the standard on its effective date and are currently evaluating the expected impact of such adoption.

Premium Amortization on Callable Debt ASU No. 2017-08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities Issued March 2017	Shortens the amortization period from the contractual life to the earliest call date for certain purchased callable debt securities held at a premium.	We adopted this guidance in the first quarter of 2019 using the modified retrospective method of adoption. Our adoption of this standard did not have a material impact on our consolidated financial statements.

Goodwill Impairment Test Simplification ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment Issued January 2017	Eliminates the second step from the current goodwill impairment test. Under the current guidance, the first step compares a reporting unit’s carrying value to its fair value. If the carrying value exceeds fair value, an entity performs the second step, which assigns the reporting unit’s fair value to its assets and liabilities, including unrecognized assets and liabilities, in the same manner as required in purchase accounting. Under the new guidance, any impairment of a reporting unit’s goodwill is determined based on the amount by which the reporting unit’s carrying value exceeds its fair value, limited to the amount of goodwill allocated to the reporting unit.	Effective January 1, 2020, with early adoption permitted, using the prospective method of adoption. We plan to adopt the standard on its effective date and do not expect such adoption to have a material impact on our consolidated financial statements.



Standard	Guidance	Accounting Standards Issued but Not Adopted as of December 31, 2018
Current Expected Credit Loss (“CECL”) ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Issued June 2016	Requires the use of current expected credit loss model that is based on expected rather than incurred losses to determine our allowance for credit losses on financial assets measured at amortized cost, certain net investments in leases and certain off-balance sheet arrangements. Replaces current accounting for PCI and impaired loans. Amends the other-than-temporary impairment model for available for sale debt securities to require that credit losses (and subsequent recoveries) be recorded through an allowance approach, rather than through permanent write-downs for credit losses and subsequent accretion of positive changes through interest income over time.	Effective January 1, 2020, with early adoption permitted no earlier than January 1, 2019, using the modified retrospective method of adoption. We plan to adopt the standard on its effective date. We have established a company-wide, cross-functional governance structure for our implementation of this standard. We are in the process of determining key accounting interpretations, data requirements and necessary changes to our credit loss estimation methods, processes and systems. We continue to assess the potential impact on our consolidated financial statements and related disclosures. We currently expect our adoption of this guidance will result in an increase to our reserves for credit losses on financial instruments due to the requirement to record expected losses over the remaining contractual lives of our financial instruments; however, the actual impact will depend on the characteristics of our financial instruments, economic conditions, and our economic and loss forecasts at the adoption date.

Leases ASU No. 2016-02, Leases (Topic 842) Issued February 2016	Requires lessees to recognize right of use assets and lease liabilities on their consolidated balance sheets and disclose key information about all their leasing arrangements, with certain practical expedients.	We adopted this guidance in the first quarter of 2019, using the modified retrospective method of adoption without restating prior periods. We elected the practical expedients that permitted us to not reassess the lease classification of existing leases, whether existing contracts contain a lease or the treatment of initial direct costs on existing leases. Upon adoption, we recorded a lease liability of $1.9 billion and right of use asset of $1.6 billion, which is net of other lease-related balances. We do not expect material changes to the recognition of operating lease expense in our consolidated statements of income as a result of adopting this guidance.

Business Developments

12 Months Ended

Dec. 31, 2018

Mergers, Acquisitions, Restructuring and Dispositions Disclosures [Abstract]

Business Developments

NOTE 2—BUSINESS DEVELOPMENTS

Business Developments

We periodically initiate restructuring activities to support business strategies and enhance our overall operational efficiency. These restructuring activities have primarily consisted of exiting certain business locations and activities as well as the realignment of resources supporting various businesses, including the decisions within Consumer Banking business to cease new originations of home loan lending products in the fourth quarter of 2017, to sell our online retail brokerage business in the first quarter of 2018 and to sell all of our consumer home loan portfolio in 2018. The charges incurred as a result of these restructuring activities have primarily consisted of severance and related benefits pursuant to our ongoing benefit programs, which are included in salaries and associate benefits within non-interest expense in our consolidated statements of income, as well as impairment of certain assets related to business locations and activities being exited, which are generally included in occupancy and equipment within non-interest expense. During 2018 and 2017, we recognized restructuring charges of $34 million and $184 million, respectively, which are reflected in the Other category of our business segment results.

In 2018, we sold all of our consumer home loan portfolio and recognized a net gain of approximately $499 million in the Other category, including a benefit for credit losses of $46 million. The impact of the sale of our consumer home loan portfolio in our consolidated statements of cash flows is included in net changes in loans held for investment. We also sold our online retail brokerage business in 2018 and transferred approximately $1.4 billion of customer deposits and an equal cash amount to the third-party purchaser. The impact of the sale of our online retail brokerage business is included in net cash from other investing activities in our consolidated statements of cash flows.

Investment Securities

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Investment Securities

NOTE 3—INVESTMENT SECURITIES

Our investment securities portfolio consists primarily of the following: U.S. Treasury securities; U.S. government-sponsored enterprise or agency (“Agency”) and non-agency RMBS; Agency CMBS; and other securities. Agency securities include Government National Mortgage Association (“Ginnie Mae”) guaranteed securities, Federal National Mortgage Association (“Fannie Mae”) and Federal Home Loan Mortgage Corporation (“Freddie Mac”) issued securities. The carrying value of our investments in U.S. Treasury and Agency securities represented 96% and 95% of our total investment securities as of December 31, 2018 and 2017, respectively.

We classify investment securities as either available for sale or held to maturity. As of December 31, 2018 and 2017, we had investment securities available for sale of $46.2 billion and $37.7 billion, respectively, and securities held to maturity of $36.8 billion and $29.0 billion, respectively.

The table below presents the amortized cost, gross unrealized gains and losses, and fair value of securities available for sale as of December 31, 2018 and 2017.

Table 3.1: Investment Securities Available for Sale



	December 31, 2018
(Dollars in millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Investment securities available for sale:
U.S. Treasury securities	$	6,146	$	15	$	(17	)	$	6,144
RMBS:
Agency	32,710		62		(869		)	31,903
Non-agency	1,440		304		(2		)	1,742
Total RMBS	34,150		366		(871		)	33,645
Agency CMBS	4,806		11		(78		)	4,739
Other securities⁽¹⁾	1,626		2		(6		)	1,622
Total investment securities available for sale	$	46,728	$	394	$	(972	)	$	46,150



	December 31, 2017
(Dollars in millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Investment securities available for sale:
U.S. Treasury securities	$	5,168	$	11	$	(8	)	$	5,171
RMBS:
Agency	26,013		67		(402		)	25,678
Non-agency	1,722		393		(1		)	2,114
Total RMBS	27,735		460		(403		)	27,792
Agency CMBS	3,209		10		(44		)	3,175
Other securities⁽¹⁾	1,516		4		(3		)	1,517
Total investment securities available for sale	$	37,628	$	485	$	(458	)	$	37,655

__________


⁽¹⁾	Includes primarily supranational bonds, foreign government bonds and other asset-backed securities.

The table below presents the amortized cost, carrying value, gross unrealized gains and losses, and fair value of securities held to maturity as of December 31, 2018 and 2017. In the first quarter of 2018, we made a one-time transfer of held to maturity securities with a carrying value of $9.0 billion to available for sale as a result of our adoption of ASU No. 2017-12. These securities had pre-tax unrealized losses of $535 million ($407 million after-tax) in AOCI prior to the transfer. See “Note 1—Summary of Significant Accounting Policies” and “Note 11—Stockholders’ Equity” for more information.

Table 3.2: Investment Securities Held to Maturity



	December 31, 2018
(Dollars in millions)	Amortized Cost		Unrealized Losses Recorded in AOCI			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Agency RMBS	$	33,299	$	(238	)	$	33,061	$	293	$	(377	)	$	32,977
Agency CMBS	3,723		(13		)	3,710		21		(89		)	3,642
Total investment securities held to maturity	$	37,022	$	(251	)	$	36,771	$	314	$	(466	)	$	36,619



	December 31, 2017
(Dollars in millions)	Amortized Cost		Unrealized Losses Recorded in AOCI			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury securities	$	200	$	0		$	200	$	0	$	0		$	200
Agency RMBS	25,741		(761		)	24,980		565		(150		)	25,395
Agency CMBS	3,882		(78		)	3,804		70		(32		)	3,842
Total investment securities held to maturity	$	29,823	$	(839	)	$	28,984	$	635	$	(182	)	$	29,437

Investment Securities in a Gross Unrealized Loss Position

The table below provides, by major security type, information about our securities available for sale in a gross unrealized loss position and the length of time that individual securities have been in a continuous unrealized loss position as of December 31, 2018 and 2017.

Table 3.3: Securities in a Gross Unrealized Loss Position



	December 31, 2018
	Less than 12 Months					12 Months or Longer					Total
(Dollars in millions)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Investment securities available for sale:
U.S. Treasury securities	$	2,543	$	(3	)	$	1,076	$	(14	)	$	3,619	$	(17	)
RMBS:
Agency	7,863		(260		)	18,118		(609		)	25,981		(869		)
Non-agency	89		(2		)	10		0			99		(2		)
Total RMBS	7,952		(262		)	18,128		(609		)	26,080		(871		)
Agency CMBS	2,004		(31		)	1,540		(47		)	3,544		(78		)
Other securities	244		(1		)	678		(5		)	922		(6		)
Total investment securities available for sale in a gross unrealized loss position	$	12,743	$	(297	)	$	21,422	$	(675	)	$	34,165	$	(972	)



	December 31, 2017
	Less than 12 Months					12 Months or Longer					Total
(Dollars in millions)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Investment securities available for sale:
U.S. Treasury securities	$	2,031	$	(8	)	$	0	$	0		$	2,031	$	(8	)
RMBS:
Agency	8,192		(67		)	13,175		(335		)	21,367		(402		)
Non-agency	10		0			10		(1		)	20		(1		)
Total RMBS	8,202		(67		)	13,185		(336		)	21,387		(403		)
Agency CMBS	880		(8		)	1,236		(36		)	2,116		(44		)
Other securities	501		(2		)	95		(1		)	596		(3		)
Total investment securities available for sale in a gross unrealized loss position	$	11,614	$	(85	)	$	14,516	$	(373	)	$	26,130	$	(458	)

As of December 31, 2018, the amortized cost of approximately 1,390 securities available for sale exceeded their fair value by $972 million, of which $675 million related to securities that had been in a loss position for 12 months or longer. As of December 31, 2018, the carrying value of approximately 360 securities classified as held to maturity exceeded their fair value by $466 million.

Maturities and Yields of Investment Securities

The table below summarizes, by major security type, the contractual maturities and weighted-average yields of our investment securities as of December 31, 2018. Because borrowers may have the right to call or prepay certain obligations, the expected maturities of our securities are likely to differ from the scheduled contractual maturities presented below. The weighted-average yield below represents the effective yield for the investment securities and is calculated based on the amortized cost of each security.

Table 3.4: Contractual Maturities and Weighted-Average Yields of Securities



	December 31, 2018
(Dollars in millions)	Due in 1 Year or Less			Due > 1 Year through 5 Years			Due > 5 Years through 10 Years			Due > 10 Years			Total
Fair value of securities available for sale:
U.S. Treasury securities	$	447		$	784		$	4,913		$	0		$	6,144
RMBS⁽¹⁾:
Agency	6			23			724			31,150			31,903
Non-agency	0			0			0			1,742			1,742
Total RMBS	6			23			724			32,892			33,645
Agency CMBS⁽¹⁾	7			1,778			1,687			1,267			4,739
Other securities	233			1,027			342			20			1,622
Total securities available for sale	$	693		$	3,612		$	7,666		$	34,179		$	46,150
Amortized cost of securities available for sale	$	695		$	3,642		$	7,680		$	34,711		$	46,728
Weighted-average yield for securities available for sale	1.46		%	2.29		%	2.49		%	2.95		%	2.80		%
Carrying value of securities held to maturity:
Agency RMBS⁽¹⁾	$	0		$	0		$	51		$	33,010		$	33,061
Agency CMBS⁽¹⁾	0			69			449			3,192			3,710
Total securities held to maturity	$	0		$	69		$	500		$	36,202		$	36,771
Fair value of securities held to maturity	$	0		$	70		$	487		$	36,062		$	36,619
Weighted-average yield for securities held to maturity	0.00		%	3.53		%	2.95		%	3.31		%	3.30		%

__________


⁽¹⁾	As of December 31, 2018, the weighted-average expected maturities of RMBS and CMBS are 6.6 years and 5.3 years, respectively.

Other-Than-Temporary Impairment

We evaluate all securities in an unrealized loss position at least quarterly, and more often as market conditions require, to assess whether the impairment is other-than-temporary. Our OTTI assessment is based on a discounted cash flow analysis which requires careful use of judgments and assumptions. A number of qualitative and quantitative criteria may be considered in our assessment, as applicable, including the size and the nature of the portfolio; historical and projected performance such as prepayment, default and loss severity for the RMBS portfolio; recent credit events specific to the issuer and/or industry to which the issuer belongs; the payment structure of the security; external credit ratings of the issuer and any failure or delay of the issuer to make scheduled interest or principal payments; the value of underlying collateral; our intent and ability to hold the security; and current and projected market and macro-economic conditions.

If we intend to sell a security in an unrealized loss position or it is more likely than not that we will be required to sell the security prior to recovery of its amortized cost basis, the entire difference between the amortized cost basis of the security and its fair value is recognized in earnings. As of December 31, 2018, we had sold all securities previously designated with the intent to sell, and did not intend to sell, nor believe that we will be required to sell, any other security in an unrealized loss position prior to the recovery of its amortized cost basis.

For those securities that we do not intend to sell nor expect to be required to sell, an analysis is performed to determine if any of the impairment is due to credit-related factors or whether it is due to other factors, such as interest rates. Credit-related impairment is recognized in earnings, with the remaining unrealized non-credit-related impairment recorded in AOCI. We determine the credit component based on the difference between the security’s amortized cost basis and the present value of its expected cash flows, discounted at the security’s effective yield.

Realized Gains and Losses on Securities and OTTI Recognized in Earnings

The following table presents the gross realized gains and losses on the sale of securities available for sale, and the OTTI losses recognized in earnings for the years ended December 31, 2018, 2017 and 2016. We also present the proceeds from the sale of securities available for sale for the periods presented. We did not sell any investment securities that are classified as held to maturity.

Table 3.5: Realized Gains (Losses) on Securities and OTTI Recognized in Earnings



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Realized gains (losses):
Gross realized gains	$	13		$	144		$	12
Gross realized losses	(21		)	(74		)	(6		)
Net realized gains (losses)	(8		)	70			6
OTTI recognized in earnings:
Credit-related OTTI	(1		)	(2		)	(11		)
Intent-to-sell OTTI	(200		)	(3		)	(6		)
Total OTTI recognized in earnings	(201		)	(5		)	(17		)
Net securities gains (losses)	$	(209	)	$	65		$	(11	)
Total proceeds from sales	$	6,399		$	8,181		$	4,146

The cumulative credit loss component of the OTTI losses that have been recognized in our consolidated statements of income related to the securities that we do not intend to sell was $140 million and $147 million as of December 31, 2018 and 2017, respectively.

Securities Pledged and Received

We pledged securities available for sale and held to maturity totaling $16.3 billion and $8.5 billion as of December 31, 2018 and 2017, respectively. These securities are pledged to primarily secure FHLB advances and Public Funds deposits, as well as for other purposes as required or permitted by law. We accepted pledges of securities with a fair value of $1 million as of both December 31, 2018 and 2017, primarily related to our derivative transactions.

Purchased Credit-Impaired Debt Securities

The table below presents the outstanding balance and carrying value of the purchased credit-impaired debt securities as of December 31, 2018 and 2017.

Table 3.6: Outstanding Balance and Carrying Value of Purchased Credit-Impaired Debt Securities



(Dollars in millions)	December 31, 2018		December 31, 2017
Outstanding balance	$	1,784	$	2,131
Carrying value	1,537		1,843

Changes in Accretable Yield of Purchased Credit-Impaired Debt Securities

The following table presents changes in the accretable yield related to the purchased credit-impaired debt securities for the years ended December 31, 2018, 2017 and 2016.

Table 3.7: Changes in the Accretable Yield of Purchased Credit-Impaired Debt Securities



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Accretable yield, beginning of period	$	826		$	1,173		$	1,237
Accretion recognized in earnings	(153		)	(182		)	(206		)
Reduction due to payoffs, disposals, transfers and other	(3		)	(157		)	(2		)
Net reclassifications (to) from nonaccretable difference	28			(8		)	144
Accretable yield, end of period	$	698		$	826		$	1,173

Loans

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Loans

NOTE 4—LOANS

Loan Portfolio Composition

Our loan portfolio consists of loans held for investment, including loans held in our consolidated trusts, and loans held for sale, and is divided into three portfolio segments: credit card, consumer banking and commercial banking. Credit card loans consist of domestic and international credit card loans. Consumer banking loans consist of auto and retail banking loans and in prior periods also consisted of home loans. Commercial banking loans consist of commercial and multifamily real estate, commercial and industrial, and small-ticket commercial real estate loans. We sold all of our consumer home loan portfolio and the related servicing during 2018.

Credit Quality

We closely monitor economic conditions and loan performance trends to manage and evaluate our exposure to credit risk. Trends in delinquency rates are an indicator, among other considerations, of credit risk within our loan portfolio. The level of nonperforming loans represents another indicator of the potential for future credit losses. Accordingly, key metrics we track and use in evaluating the credit quality of our loan portfolio include delinquency and nonperforming loan rates, as well as net charge-off rates and our internal risk ratings of larger-balance commercial loans. The credit metrics presented in this section exclude loans held for sale, which are carried at lower of cost or fair value.The table below presents the composition and an aging analysis of our loans held for investment portfolio as of December 31, 2018 and 2017. The delinquency aging includes all past due loans, both performing and nonperforming.

Table 4.1: Loan Portfolio Composition and Aging Analysis



	December 31, 2018
(Dollars in millions)	Current			30-59 Days			60-89 Days			> 90 Days			Total Delinquent Loans			PCI Loans			Total Loans
Credit Card:
Domestic credit card	$	103,014		$	1,270		$	954		$	2,111		$	4,335		$	1		$	107,350
International card businesses	8,678			127			78			128			333			0			9,011
Total credit card	111,692			1,397			1,032			2,239			4,668			1			116,361
Consumer Banking:
Auto	52,032			2,624			1,326			359			4,309			0			56,341
Retail banking	2,809			23			8			20			51			4			2,864
Total consumer banking	54,841			2,647			1,334			379			4,360			4			59,205
Commercial Banking:
Commercial and multifamily real estate	28,737			101			20			19			140			22			28,899
Commercial and industrial	40,704			135			43			101			279			108			41,091
Total commercial lending	69,441			236			63			120			419			130			69,990
Small-ticket commercial real estate	336			2			1			4			7			0			343
Total commercial banking	69,777			238			64			124			426			130			70,333
Total loans⁽¹⁾	$	236,310		$	4,282		$	2,430		$	2,742		$	9,454		$	135		$	245,899
% of Total loans	96.1		%	1.7		%	1.0		%	1.1		%	3.8		%	0.1		%	100.0		%



	December 31, 2017
(Dollars in millions)	Current			30-59 Days			60-89 Days			> 90 Days			Total Delinquent Loans			PCI Loans			Total Loans
Credit Card:
Domestic credit card	$	101,072		$	1,211		$	915		$	2,093		$	4,219		$	2		$	105,293
International card businesses	9,110			144			81			134			359			0			9,469
Total credit card	110,182			1,355			996			2,227			4,578			2			114,762
Consumer Banking:
Auto	50,151			2,483			1,060			297			3,840			0			53,991
Home loan	7,235			37			16			70			123			10,275			17,633
Retail banking	3,389			24			5			18			47			18			3,454
Total consumer banking	60,775			2,544			1,081			385			4,010			10,293			75,078
Commercial Banking:
Commercial and multifamily real estate	26,018			41			17			49			107			25			26,150
Commercial and industrial	37,412			1			70			87			158			455			38,025
Total commercial lending	63,430			42			87			136			265			480			64,175
Small-ticket commercial real estate	393			2			1			4			7			0			400
Total commercial banking	63,823			44			88			140			272			480			64,575
Other loans	54			2			1			1			4			0			58
Total loans⁽¹⁾	$	234,834		$	3,945		$	2,166		$	2,753		$	8,864		$	10,775		$	254,473
% of Total loans	92.3		%	1.5		%	0.9		%	1.1		%	3.5		%	4.2		%	100.0		%

__________


⁽¹⁾	Loans, other than PCI loans, include unamortized premiums and discounts, and unamortized deferred fees and costs totaling $818 million and $773 million as of December 31, 2018 and 2017, respectively.

We pledged loan collateral of $15.8 billion and $27.3 billion to secure a portion of our FHLB borrowing capacity of $19.3 billion and $21.0 billion as of December 31, 2018 and 2017, respectively. We also pledged loan collateral of $9.2 billion and $9.1 billion to secure our Federal Reserve Discount Window borrowing capacity of $7.6 billion and $7.4 billion as of December 31, 2018 and 2017, respectively. In addition to loans pledged, we securitized a portion of our credit card loans, see “Note 6—Variable Interest Entities and Securitizations” for additional information.The following table presents the outstanding balance of loans 90 days or more past due that continue to accrue interest and loans classified as nonperforming as of December 31, 2018 and 2017. Nonperforming loans generally include loans that have been placed on nonaccrual status. PCI loans are excluded from the table below.

Table 4.2: 90+ Day Delinquent Loans Accruing Interest and Nonperforming Loans



	December 31, 2018				December 31, 2017
(Dollars in millions)	> 90 Days and Accruing		Nonperforming Loans		> 90 Days and Accruing		Nonperforming Loans
Credit Card:
Domestic credit card	$	2,111	N/A		$	2,093	N/A
International card businesses	122		$	22	128		$	24
Total credit card	2,233		22		2,221		24
Consumer Banking:
Auto	0		449		0		376
Home loan	0		0		0		176
Retail banking	0		30		0		35
Total consumer banking	0		479		0		587



	December 31, 2018						December 31, 2017
(Dollars in millions)	> 90 Days and Accruing			Nonperforming Loans			> 90 Days and Accruing			Nonperforming Loans
Commercial Banking:
Commercial and multifamily real estate	$	0		$	83		$	12		$	38
Commercial and industrial	0			223			0			239
Total commercial lending	0			306			12			277
Small-ticket commercial real estate	0			6			0			7
Total commercial banking	0			312			12			284
Other loans	0			0			0			4
Total	$	2,233		$	813		$	2,233		$	899
% of Total loans held for investment	0.91		%	0.33		%	0.88		%	0.35		%

Credit Card

Our credit card loan portfolio is highly diversified across millions of accounts and numerous geographies without significant individual exposure. We therefore generally manage credit risk based on portfolios with common risk characteristics. The risk in our credit card loan portfolio correlates to broad economic trends, such as unemployment rates and home values, as well as consumers’ financial condition, all of which can have a material effect on credit performance. The primary indicators we assess in monitoring the credit quality and risk of our credit card portfolio are delinquency and charge-off trends, including an analysis of loan migration between delinquency categories over time.

The table below displays the geographic profile of our credit card loan portfolio as of December 31, 2018 and 2017.

Table 4.3: Credit Card Risk Profile by Geographic Region



	December 31, 2018				December 31, 2017
(Dollars in millions)	Amount		% of Total		Amount		% of Total
Domestic credit card:
California	$	11,591	10.0	%	$	11,475	10.0	%
Texas	8,173		7.0		7,847		6.8
New York	7,400		6.4		7,389		6.4
Florida	7,086		6.1		6,790		5.9
Illinois	4,761		4.1		4,734		4.1
Pennsylvania	4,575		3.9		4,550		4.0
Ohio	3,967		3.4		3,929		3.4
New Jersey	3,641		3.1		3,621		3.2
Michigan	3,544		3.0		3,523		3.1
Other	52,612		45.3		51,435		44.8
Total domestic credit card	107,350		92.3		105,293		91.7
International card businesses:
Canada	6,023		5.1		6,286		5.5
United Kingdom	2,988		2.6		3,183		2.8
Total international card businesses	9,011		7.7		9,469		8.3
Total credit card	$	116,361	100.0	%	$	114,762	100.0	%

The table below presents net charge-offs for the years ended December 31, 2018, 2017 and 2016.

Table 4.4: Credit Card Net Charge-Offs



	Year Ended December 31,
	2018				2017				2016
(Dollars in millions)	Amount		Rate⁽¹⁾		Amount		Rate⁽¹⁾		Amount		Rate⁽¹⁾
Net charge-offs:⁽¹⁾
Domestic credit card	$	4,782	4.74	%	$	4,739	4.99	%	$	3,681	4.16	%
International card businesses	287		3.19		315		3.69		272		3.33
Total credit card	$	5,069	4.62		$	5,054	4.88		$	3,953	4.09

__________

⁽¹⁾

Net charge-offs consist of the unpaid principal balance of loans held for investment that we determine to be uncollectible, net of recovered amounts. Net charge-off rate is calculated by dividing net charge-offs by average loans held for investment for the period for each loan category. Net charge-offs and the net charge-off rate are impacted periodically by fluctuations in recoveries, including loan sales.Consumer Banking

Our consumer banking loan portfolio consists of auto and retail banking loans and in prior periods also consisted of home loans. Similar to our credit card loan portfolio, the risk in our consumer banking loan portfolio correlates to broad economic trends, such as unemployment rates, gross domestic product and home values, as well as consumers’ financial condition, all of which can have a material effect on credit performance. Delinquency, nonperforming loans and charge-off trends are key indicators we assess in monitoring the credit quality and risk of our consumer banking loan portfolio.

The table below displays the geographic profile of our consumer banking loan portfolio as of December 31, 2018 and 2017.

Table 4.5: Consumer Banking Risk Profile by Geographic Region



	December 31, 2018				December 31, 2017
(Dollars in millions)	Amount		% of Total		Amount		% of Total
Auto:
Texas	$	7,264	12.3	%	$	7,040	9.4	%
California	6,352		10.7		6,099		8.1
Florida	4,623		7.8		4,486		6.0
Georgia	2,665		4.5		2,726		3.6
Ohio	2,502		4.2		2,318		3.1
Louisiana	2,174		3.7		2,236		3.0
Illinois	2,171		3.7		2,181		2.9
Pennsylvania	2,167		3.7		2,014		2.7
Other	26,423		44.6		24,891		33.1
Total auto	56,341		95.2		53,991		71.9
Retail banking:
New York	837		1.4		955		1.3
Louisiana	772		1.3		953		1.3
Texas	647		1.1		717		0.9
New Jersey	201		0.3		221		0.3
Maryland	161		0.3		187		0.2
Virginia	137		0.2		154		0.2
Other	109		0.2		267		0.4
Total retail banking	2,864		4.8		3,454		4.6
Total home loan	0		0.0		17,633		23.5
Total consumer banking	$	59,205	100.0	%	$	75,078	100.0	%

The table below presents net charge-offs in our consumer banking loan portfolio for the years ended December 31, 2018, 2017 and 2016, as well as nonperforming loans as of December 31, 2018 and 2017.

Table 4.6: Consumer Banking Net Charge-Offs and Nonperforming Loans



	Year Ended December 31,
	2018					2017				2016
(Dollars in millions)	Amount			Rate⁽¹⁾		Amount		Rate⁽¹⁾		Amount		Rate⁽¹⁾
Net charge-offs (recoveries):
Auto	$	912		1.64	%	$	957	1.86	%	$	752	1.69	%
Home loan	(1		)	(0.02	)	15		0.08		14		0.06
Retail banking	70			2.26		66		1.92		54		1.53
Total consumer banking	$	981		1.51		$	1,038	1.39		$	820	1.15



	December 31, 2018				December 31, 2017
(Dollars in millions)	Amount		Rate⁽²⁾		Amount		Rate⁽²⁾
Nonperforming loans:
Auto	$	449	0.80	%	$	376	0.70	%
Home loan	0		0.00		176		1.00
Retail banking	30		1.04		35		1.00
Total consumer banking	$	479	0.81		$	587	0.78

__________


⁽¹⁾	Net charge-off (recovery) rate is calculated by dividing net charge-offs (recoveries) by average loans held for investment for the period for each loan category.

⁽²⁾

Nonperforming loan rates are calculated based on nonperforming loans for each category divided by period-end total loans held for investment for each respective category.Commercial Banking

We evaluate the credit risk of commercial loans using a risk rating system. We assign internal risk ratings to loans based on relevant information about the ability of the borrowers to repay their debt. In determining the risk rating of a particular loan, some of the factors considered are the borrower’s current financial condition, historical and projected future credit performance, prospects for support from financially responsible guarantors, the estimated realizable value of any collateral and current economic trends. The scale based on our internal risk rating system is as follows:


•	Noncriticized: Loans that have not been designated as criticized, frequently referred to as “pass” loans.


•	Criticized performing: Loans in which the financial condition of the obligor is stressed, affecting earnings, cash flows or collateral values. The borrower currently has adequate capacity to meet near-term obligations; however, the stress, left unabated, may result in deterioration of the repayment prospects at some future date.

•

Criticized nonperforming: Loans that are not adequately protected by the current net worth and paying capacity of the obligor or the collateral pledged, if any. Loans classified as criticized nonperforming have a well-defined weakness, or weaknesses, which jeopardize the full repayment of the debt. These loans are characterized by the distinct possibility that we will sustain a credit loss if the deficiencies are not corrected and are generally placed on nonaccrual status.

We use our internal risk rating system for regulatory reporting, determining the frequency of credit exposure reviews, and evaluating and determining the allowance for loan and lease losses for commercial loans. Generally, loans that are designated as criticized performing and criticized nonperforming are reviewed quarterly by management to determine if they are appropriately classified/rated and whether any impairment exists. Noncriticized loans are also generally reviewed, at least annually, to determine the appropriate risk rating. In addition, we evaluate the risk rating during the renewal process of any loan or if a loan becomes past due.

The following table presents the geographic concentration and internal risk ratings of our commercial loan portfolio as of December 31, 2018 and 2017.

Table 4.7: Commercial Banking Risk Profile by Geographic Region and Internal Risk Rating



	December 31, 2018
(Dollars in millions)	Commercial and Multifamily Real Estate		% of Total		Commercial and Industrial		% of Total		Small-Ticket Commercial Real Estate		% of Total		Total Commercial Banking		% of Total
Geographic concentration:⁽¹⁾
Northeast	$	15,562	53.8	%	$	7,573	18.4	%	$	213	62.1	%	$	23,348	33.2	%
Mid-Atlantic	3,410		11.8		4,710		11.5		12		3.5		8,132		11.6
South	4,247		14.7		15,367		37.4		20		5.8		19,634		27.9
Other	5,680		19.7		13,441		32.7		98		28.6		19,219		27.3
Total	$	28,899	100.0	%	$	41,091	100.0	%	$	343	100.0	%	$	70,333	100.0	%
Internal risk rating:⁽²⁾
Noncriticized	$	28,239	97.7	%	$	39,468	96.1	%	$	336	98.0	%	$	68,043	96.8	%
Criticized performing	555		1.9		1,292		3.1		1		0.3		1,848		2.6
Criticized nonperforming	83		0.3		223		0.5		6		1.7		312		0.4
PCI loans	22		0.1		108		0.3		0		0.0		130		0.2
Total	$	28,899	100.0	%	$	41,091	100.0	%	$	343	100.0	%	$	70,333	100.0	%



	December 31, 2017
(Dollars in millions)	Commercial and Multifamily Real Estate		% of Total⁽¹⁾		Commercial and Industrial		% of Total		Small-Ticket Commercial Real Estate		% of Total		Total Commercial Banking		% of Total
Geographic concentration:⁽¹⁾
Northeast	$	14,969	57.3	%	$	7,774	20.4	%	$	250	62.4	%	$	22,993	35.7	%
Mid-Atlantic	2,675		10.2		3,922		10.3		15		3.8		6,612		10.2
South	3,719		14.2		14,739		38.8		22		5.5		18,480		28.6
Other	4,787		18.3		11,590		30.5		113		28.3		16,490		25.5
Total	$	26,150	100.0	%	$	38,025	100.0	%	$	400	100.0	%	$	64,575	100.0	%
Internal risk rating:⁽²⁾
Noncriticized	$	25,609	98.0	%	$	35,161	92.5	%	$	392	97.9	%	$	61,162	94.7	%
Criticized performing	478		1.8		2,170		5.7		1		0.3		2,649		4.1
Criticized nonperforming	38		0.1		239		0.6		7		1.8		284		0.4
PCI loans	25		0.1		455		1.2		0		0.0		480		0.8
Total	$	26,150	100.0	%	$	38,025	100.0	%	$	400	100.0	%	$	64,575	100.0	%

__________


⁽¹⁾	Geographic concentration is generally determined by the location of the borrower’s business or the location of the collateral associated with the loan. Northeast consists of CT, MA, ME, NH, NJ, NY, PA and VT. Mid-Atlantic consists of DC, DE, MD, VA and WV. South consists of AL, AR, FL, GA, KY, LA, MO, MS, NC, SC, TN and TX.

⁽²⁾

Criticized exposures correspond to the “Special Mention,” “Substandard” and “Doubtful” asset categories defined by bank regulatory authorities.Impaired Loans

The following table presents information on our impaired loans as of December 31, 2018 and 2017, and for the years ended December 31, 2018, 2017 and 2016. Impaired loans include loans modified in troubled debt restructurings (“TDRs”), all nonperforming commercial loans and nonperforming home loans with a specific impairment. Impaired loans without an allowance generally represent loans that have been charged down to the fair value of the underlying collateral for which we believe no additional losses have been incurred, or where the fair value of the underlying collateral meets or exceeds the loan’s amortized cost. PCI loans are excluded from the following tables.

Table 4.8: Impaired Loans



	December 31, 2018
(Dollars in millions)	With an Allowance		Without an Allowance		Total Recorded Investment		Related Allowance		Net Recorded Investment		Unpaid Principal Balance
Credit Card:
Domestic credit card	$	666	$	0	$	666	$	186	$	480	$	654
International card businesses	189		0		189		91		98		183
Total credit card⁽¹⁾	855		0		855		277		578		837
Consumer Banking:
Auto⁽²⁾	301		38		339		22		317		420
Retail banking	42		12		54		5		49		60
Total consumer banking	343		50		393		27		366		480
Commercial Banking:
Commercial and multifamily real estate	92		28		120		5		115		121
Commercial and industrial	301		169		470		29		441		593
Total commercial lending	393		197		590		34		556		714
Small-ticket commercial real estate	0		6		6		0		6		9
Total commercial banking	393		203		596		34		562		723
Total	$	1,591	$	253	$	1,844	$	338	$	1,506	$	2,040



	December 31, 2017
(Dollars in millions)	With an Allowance		Without an Allowance		Total Recorded Investment		Related Allowance		Net Recorded Investment		Unpaid Principal Balance
Credit Card:
Domestic credit card	$	639	$	0	$	639	$	208	$	431	$	625
International card businesses	173		0		173		84		89		167
Total credit card⁽¹⁾	812		0		812		292		520		792
Consumer Banking:
Auto⁽²⁾	363		118		481		30		451		730
Home loan	192		41		233		15		218		298
Retail banking	51		10		61		8		53		66
Total consumer banking	606		169		775		53		722		1,094
Commercial Banking:
Commercial and multifamily real estate	138		2		140		13		127		143
Commercial and industrial	489		222		711		63		648		844
Total commercial lending	627		224		851		76		775		987
Small-ticket commercial real estate	7		0		7		0		7		9
Total commercial banking	634		224		858		76		782		996
Total	$	2,052	$	393	$	2,445	$	421	$	2,024	$	2,882



	Year Ended December 31,
	2018				2017				2016
(Dollars in millions)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Credit Card:
Domestic credit card	$	655	$	63	$	602	$	63	$	540	$	58
International card businesses	184		12		154		11		133		10
Total credit card⁽¹⁾	839		75		756		74		673		68
Consumer Banking:
Auto⁽²⁾	397		45		495		53		501		86
Home loan	91		1		299		5		361		5
Retail banking	59		2		59		1		62		2
Total consumer banking	547		48		853		59		924		93
Commercial Banking:
Commercial and multifamily real estate	93		2		134		4		111		3
Commercial and industrial	621		20		1,118		18		1,215		13
Total commercial lending	714		22		1,252		22		1,326		16
Small-ticket commercial real estate	5		0		7		0		7		0
Total commercial banking	719		22		1,259		22		1,333		16
Total	$	2,105	$	145	$	2,868	$	155	$	2,930	$	177

__________


⁽¹⁾	The period-end and average recorded investments of credit card loans include finance charges and fees.

⁽²⁾

Includes certain TDRs that are recorded as other assets on our consolidated balance sheets.Troubled Debt Restructurings

Total recorded TDRs were $1.6 billion and $2.2 billion as of December 31, 2018 and 2017, respectively. TDRs classified as performing in our credit card and consumer banking loan portfolios totaled $1.2 billion and $1.3 billion as of December 31, 2018 and 2017, respectively. TDRs classified as performing in our commercial banking loan portfolio totaled $282 million and $574 million as of December 31, 2018 and 2017, respectively. Commitments to lend additional funds on loans modified in TDRs totaled $256 million and $241 million as of December 31, 2018 and 2017, respectively.

Loans Modified in TDRs

As part of our loan modification programs to borrowers experiencing financial difficulty, we may provide multiple concessions to minimize our economic loss and improve long-term loan performance and collectability. The following tables present the major modification types, recorded investment amounts and financial effects of loans modified in TDRs during the years ended December 31, 2018, 2017 and 2016.

Table 4.9: Troubled Debt Restructurings



	Total Loans Modified⁽¹⁾		Year Ended December 31, 2018
			Reduced Interest Rate				Term Extension			Balance Reduction
(Dollars in millions)			% of TDR Activity⁽²⁾		Average Rate Reduction		% of TDR Activity⁽²⁾		Average Term Extension (Months)	% of TDR Activity⁽²⁾		Gross Balance Reduction
Credit Card:
Domestic credit card	$	412	100	%	15.93	%	0	%	0	0	%	$	0
International card businesses	184		100		26.96		0		0	0		0
Total credit card	596		100		19.34		0		0	0		0
Consumer Banking:
Auto⁽³⁾	227		49		3.88		89		8	1		1
Home loan	6		28		1.78		83		214	0		0
Retail banking	8		16		10.92		43		12	0		0
Total consumer banking	241		48		3.93		87		13	1		1
Commercial Banking:
Commercial and multifamily real estate	43		0		0.00		80		5	0		0
Commercial and industrial	170		0		1.03		54		13	0		0
Total commercial lending	213		0		1.03		60		11	0		0
Small-ticket commercial real estate	3		0		0.00		0		0	0		0
Total commercial banking	216		0		1.03		59		11	0		0
Total	$	1,053	68		16.84		32		12	0		$	1



	Total Loans Modified⁽¹⁾		Year Ended December 31, 2017
			Reduced Interest Rate				Term Extension			Balance Reduction
(Dollars in millions)			% of TDR Activity⁽²⁾		Average Rate Reduction		% of TDR Activity⁽²⁾		Average Term Extension (Months)	% of TDR Activity⁽²⁾		Gross Balance Reduction
Credit Card:
Domestic credit card	$	406	100	%	14.50	%	0	%	0	0	%	$	0
International card businesses	169		100		26.51		0		0	0		0
Total credit card	575		100		18.02		0		0	0		0
Consumer Banking:
Auto⁽³⁾	324		44		3.82		95		6	2		7
Home loan	19		48		2.77		78		233	2		0
Retail banking	13		22		5.77		73		10	0		0
Total consumer banking	356		44		3.79		93		16	2		7
Commercial Banking:
Commercial and multifamily real estate	29		7		0.02		26		5	0		0
Commercial and industrial	557		19		0.80		59		17	0		0
Total commercial lending	586		18		0.79		57		16	0		0
Small-ticket commercial real estate	3		0		0.00		4		0	0		0
Total commercial banking	589		18		0.79		57		16	0		0
Total	$	1,520	55		13.19		44		16	0		$	7



	Total Loans Modified⁽¹⁾		Year Ended December 31, 2016
			Reduced Interest Rate				Term Extension			Balance Reduction
(Dollars in millions)			% of TDR Activity⁽²⁾		Average Rate Reduction		% of TDR Activity⁽²⁾		Average Term Extension (Months)	% of TDR Activity⁽²⁾		Gross Balance Reduction
Credit Card:
Domestic credit card	$	312	100	%	13.19	%	0	%	0	0	%	$	0
International card businesses	138		100		25.87		0		0	0		0
Total credit card	450		100		17.09		0		0	0		0
Consumer Banking:
Auto⁽³⁾	356		44		3.91		74		7	25		78
Home loan	48		64		2.25		87		243	2		0
Retail banking	18		23		7.89		68		10	9		1
Total consumer banking	422		46		3.73		75		38	22		79
Commercial Banking:
Commercial and multifamily real estate	38		0		0.00		67		6	32		3
Commercial and industrial	743		5		0.09		57		20	7		26
Total commercial lending	781		4		0.09		57		19	8		29
Small-ticket commercial real estate	1		0		0.00		0		0	0		0
Total commercial banking	782		4		0.09		57		19	8		29
Total	$	1,654	41		12.42		46		27	9		$	108

__________


⁽¹⁾	Represents the recorded investment of total loans modified in TDRs at the end of the quarter in which they were modified. As not every modification type is included in the table above, the total percentage of TDR activity may not add up to 100%. Some loans may receive more than one type of concession as part of the modification.


⁽²⁾	Due to multiple concessions granted to some troubled borrowers, percentages may total more than 100% for certain loan types.


⁽³⁾	Includes certain TDRs that are recorded as other assets on our consolidated balance sheets.

Subsequent Defaults of Completed TDR Modifications

The following table presents the type, number and recorded investment of loans modified in TDRs that experienced a default during the period and had completed a modification event in the twelve months prior to the default. A default occurs if the loan is either 90 days or more delinquent, has been charged off as of the end of the period presented or has been reclassified from accrual to nonaccrual status.

Table 4.10: TDR—Subsequent Defaults



	Year Ended December 31,
	2018			2017			2016
(Dollars in millions)	Number of Contracts	Amount		Number of Contracts	Amount		Number of Contracts	Amount
Credit Card:
Domestic credit card	61,070	$	126	55,121	$	111	42,250	$	73
International card businesses	61,014	106		51,641	93		40,498	82
Total credit card	122,084	232		106,762	204		82,748	155
Consumer Banking:
Auto	6,980	79		9,446	109		8,587	96
Home loan	3	1		28	7		56	7
Retail banking	26	2		41	4		48	9
Total consumer banking	7,009	82		9,515	120		8,691	112
Commercial Banking:
Commercial and multifamily real estate	1	3		0	0		1	1
Commercial and industrial	26	120		244	269		150	281
Total commercial lending	27	123		244	269		151	282
Small-ticket commercial real estate	0	0		2	1		7	1
Total commercial banking	27	123		246	270		158	283
Total	129,120	$	437	116,523	$	594	91,597	$	550

Finance Charge and Fee Reserve

We continue to accrue finance charges and fees on credit card loans until the account is charged off. Our methodology for estimating the uncollectible portion of billed finance charges and fees is consistent with the methodology we use to estimate the allowance for incurred principal losses on our credit card loan receivables. Total net revenue was reduced by $1.3 billion, $1.4 billion and $1.1 billion in 2018, 2017 and 2016, respectively, for the estimated uncollectible amount of billed finance charges and fees and related losses. The finance charge and fee reserve, which is recorded as a contra asset on our consolidated balance sheets, totaled $468 million and $491 million as of December 31, 2018 and 2017, respectively.

Loans Held for Sale

Our total loans held for sale was $1.2 billion and $971 million as of December 31, 2018 and 2017, respectively. We originated for sale $8.7 billion of commercial multifamily real estate loans in 2018, $8.4 billion and $7.6 billion of conforming residential mortgage loans and commercial multifamily real estate loans in 2017 and 2016, respectively. We retained servicing on approximately 100% of multifamily real estate loans. In 2018, we sold mortgage servicing rights related to loans serviced for others.

Allowance for Loan and Lease Losses

12 Months Ended

Dec. 31, 2018

Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]

Allowance for Loans and Lease Losses

NOTE 5—ALLOWANCE FOR LOAN AND LEASE LOSSES AND RESERVE FOR UNFUNDED LENDING COMMITMENTS

Our allowance for loan and lease losses represents management’s best estimate of incurred loan and lease losses inherent in our loans held for investment portfolio as of each balance sheet date. In addition to the allowance for loan and lease losses, we also estimate probable losses related to unfunded lending commitments, such as letters of credit, financial guarantees and binding unfunded loan commitments. The provision for losses on unfunded lending commitments is included in the provision for credit losses in our consolidated statements of income and the related reserve for unfunded lending commitments is included in other liabilities on our consolidated balance sheets. See “Note 1—Summary of Significant Accounting Policies” for further discussion of our methodology and policy for determining the allowance for loan and lease losses for each of our loan portfolio segments, as well as information on our reserve for unfunded lending commitments.

Allowance for Loan and Lease Losses and Reserve for Unfunded Lending Commitments Activity

The table below summarizes changes in the allowance for loan and lease losses and reserve for unfunded lending commitments by portfolio segment for the years ended December 31, 2018, 2017 and 2016.

Table 5.1: Allowance for Loan and Lease Losses and Reserve for Unfunded Lending Commitments Activity



(Dollars in millions)	Credit Card			Consumer Banking			Commercial Banking			Other⁽¹⁾⁽²⁾			Total
Allowance for loan and lease losses:
Balance as of December 31, 2015	$	3,654		$	868		$	604		$	4		$	5,130
Charge-offs	(5,019		)	(1,226		)	(307		)	(3		)	(6,555		)
Recoveries⁽³⁾	1,066			406			15			6			1,493
Net charge-offs	(3,953		)	(820		)	(292		)	3			(5,062		)
Provision (benefit) for loan and lease losses	4,926			1,055			515			(5		)	6,491
Allowance build (release) for loan and lease losses	973			235			223			(2		)	1,429
Other changes⁽⁴⁾	(21		)	(1		)	(34		)	0			(56		)
Balance as of December 31, 2016	4,606			1,102			793			2			6,503
Reserve for unfunded lending commitments:
Balance as of December 31, 2015	0			7			161			0			168
Benefit for losses on unfunded lending commitments	0			0			(32		)	0			(32		)
Balance as of December 31, 2016	0			7			129			0			136
Combined allowance and reserve as of December 31, 2016	$	4,606		$	1,109		$	922		$	2		$	6,639
Allowance for loan and lease losses:
Balance as of December 31, 2016	$	4,606		$	1,102		$	793		$	2		$	6,503
Charge-offs	(6,321		)	(1,677		)	(481		)	(34		)	(8,513		)
Recoveries⁽³⁾	1,267			639			16			29			1,951
Net charge-offs	(5,054		)	(1,038		)	(465		)	(5		)	(6,562		)
Provision for loan and lease losses	6,066			1,180			313			4			7,563
Allowance build (release) for loan and lease losses	1,012			142			(152		)	(1		)	1,001
Other changes⁽⁴⁾	30			(2		)	(30		)	0			(2		)
Balance as of December 31, 2017	5,648			1,242			611			1			7,502
Reserve for unfunded lending commitments:
Balance as of December 31, 2016	0			7			129			0			136
Benefit for losses on unfunded lending commitments	0			0			(12		)	0			(12		)
Balance as of December 31, 2017	0			7			117			0			124
Combined allowance and reserve as of December 31, 2017	$	5,648		$	1,249		$	728		$	1		$	7,626



(Dollars in millions)	Credit Card			Consumer Banking			Commercial Banking			Other⁽¹⁾⁽²⁾			Total
Allowance for loan and lease losses:
Balance as of December 31, 2017	$	5,648		$	1,242		$	611		$	1		$	7,502
Charge-offs	(6,657		)	(1,832		)	(119		)	(7		)	(8,615		)
Recoveries⁽³⁾	1,588			851			63			1			2,503
Net charge-offs	(5,069		)	(981		)	(56		)	(6		)	(6,112		)
Provision (benefit) for loan and lease losses	4,984			841			82			(49		)	5,858
Allowance build (release) for loan and lease losses	(85		)	(140		)	26			(55		)	(254		)
Other changes⁽¹⁾⁽⁴⁾	(28		)	(54		)	0			54			(28		)
Balance as of December 31, 2018	5,535			1,048			637			0			7,220
Reserve for unfunded lending commitments:
Balance as of December 31, 2017	0			7			117			0			124
Provision (benefit) for losses on unfunded lending commitments	0			(3		)	1			0			(2		)
Balance as of December 31, 2018	0			4			118			0			122
Combined allowance and reserve as of December 31, 2018	$	5,535		$	1,052		$	755		$	0		$	7,342

__________


⁽¹⁾	In 2018, we sold all of our consumer home loan portfolio and recognized a gain of approximately $499 million in the Other category, including a benefit for credit losses of $46 million.


⁽²⁾	Includes the legacy loan portfolio of our discontinued GreenPoint mortgage operations.


⁽³⁾	The amount and timing of recoveries is impacted by our collection strategies, which are based on customer behavior and risk profile and include direct customer communications, repossession of collateral, the periodic sale of charged-off loans as well as additional strategies, such as litigation.


⁽⁴⁾	Represents foreign currency translation adjustments and the net impact of loan transfers and sales where applicable.

Components of Allowance for Loan and Lease Losses by Impairment Methodology

The table below presents the components of our allowance for loan and lease losses by portfolio segment and impairment methodology as of December 31, 2018 and 2017. See “Note 1—Summary of Significant Accounting Policies” for further discussion of allowance methodologies for each of the loan portfolios.

Table 5.2: Components of Allowance for Loan and Lease Losses by Impairment Methodology



	December 31, 2018
(Dollars in millions)	Credit Card			Consumer Banking			Commercial Banking			Total
Allowance for loan and lease losses:
Collectively evaluated	$	5,258		$	1,021		$	603		$	6,882
Asset-specific	277			27			34			338
Total allowance for loan and lease losses	$	5,535		$	1,048		$	637		$	7,220
Loans held for investment:
Collectively evaluated	$	115,505		$	58,808		$	69,607		$	243,920
Asset-specific	855			393			596			1,844
PCI loans	1			4			130			135
Total loans held for investment	$	116,361		$	59,205		$	70,333		$	245,899
Allowance coverage ratio⁽¹⁾	4.76		%	1.77		%	0.91		%	2.94		%



	December 31, 2017
(Dollars in millions)	Credit Card			Consumer Banking			Commercial Banking			Other			Total
Allowance for loan and lease losses:
Collectively evaluated	$	5,356		$	1,158		$	529		$	1		$	7,044
Asset-specific	292			53			76			0			421
PCI loans	0			31			6			0			37
Total allowance for loan and lease losses	$	5,648		$	1,242		$	611		$	1		$	7,502
Loans held for investment:
Collectively evaluated	$	113,948		$	64,080		$	63,237		$	58		$	241,323
Asset-specific	812			705			858			0			2,375
PCI loans	2			10,293			480			0			10,775
Total loans held for investment	$	114,762		$	75,078		$	64,575		$	58		$	254,473
Allowance coverage ratio⁽¹⁾	4.92		%	1.65		%	0.95		%	1.72		%	2.95		%

__________


⁽¹⁾	Allowance coverage ratio is calculated by dividing the period-end allowance for loan and lease losses by period-end loans held for investment within the specified loan category.

We have certain credit card partnership agreements that are presented within our consolidated financial statements on a net basis, in which our partner agrees to share a portion of the credit losses on the underlying loan portfolio. The expected reimbursements from these partners, which are netted against our allowance for loan and lease losses, result in reductions to net charge-offs and provision for credit losses. See “Note 1—Summary of Significant Accounting Policies” for further discussion of our credit card partnership agreements.

The table below summarizes the changes in the estimated reimbursements from these partners for the years ended December 31, 2018, 2017 and 2016.

Table 5.3: Summary of Loss Sharing Arrangements Impacts



(Dollars in millions)	Estimated Reimbursements from Loss Sharing Partners
Balance as of December 31, 2015	$	194
Amounts due from partners which reduced net charge-offs	(229		)
Amounts estimated to be charged to partners which reduced provision for credit losses	263
Balance as of December 31, 2016	228
Amounts due from partners which reduced net charge-offs	(285		)
Amounts estimated to be charged to partners which reduced provision for credit losses	437
Balance as of December 31, 2017	380
Amounts due from partners which reduced net charge-offs	(382		)
Amounts estimated to be charged to partners which reduced provision for credit losses	381
Balance as of December 31, 2018	$	379

Variable Interest Entities and Securitizations

12 Months Ended

Dec. 31, 2018

Variable Interest Entities and Securitization [Abstract]

Variable Interest Entities and Securitizations

NOTE 6—VARIABLE INTEREST ENTITIES AND SECURITIZATIONS

In the normal course of business, we enter into various types of transactions with entities that are considered to be VIEs. Our primary involvement with VIEs has been related to our securitization transactions in which we transferred assets to securitization trusts. We have primarily securitized credit card loans, which have provided a source of funding for us and enabled us to transfer a certain portion of the economic risk of the loans or related debt securities to third parties.

The entity that has a controlling financial interest in a VIE is referred to as the primary beneficiary and is required to consolidate the VIE. The majority of the VIEs in which we are involved have been consolidated in our financial statements.

Summary of Consolidated and Unconsolidated VIEs

The assets of our consolidated VIEs primarily consist of cash, credit card loan receivables and the related allowance for loan and lease losses, which we report on our consolidated balance sheets under restricted cash for securitization investors, loans held in consolidated trusts and allowance for loan and lease losses, respectively. The assets of a particular VIE are the primary source of funds to settle its obligations. Creditors of these VIEs typically do not have recourse to our general credit. Liabilities primarily consist of debt securities issued by the VIEs, which we report under securitized debt obligations on our consolidated balance sheets. For unconsolidated VIEs, we present the carrying amount of assets and liabilities reflected on our consolidated balance sheets and our maximum exposure to loss. Our maximum exposure to loss is estimated based on the unlikely event that all of the assets in the VIEs become worthless and we are required to meet our maximum remaining funding obligations.

The tables below present a summary of VIEs in which we had continuing involvement or held a variable interest, aggregated based on VIEs with similar characteristics as of December 31, 2018 and 2017. We separately present information for consolidated and unconsolidated VIEs.

Table 6.1: Carrying Amount of Consolidated and Unconsolidated VIEs



	December 31, 2018
	Consolidated				Unconsolidated
(Dollars in millions)	Carrying Amount of Assets		Carrying Amount of Liabilities		Carrying Amount of Assets		Carrying Amount of Liabilities		Maximum Exposure to Loss
Securitization-Related VIEs:
Credit card loan securitizations⁽¹⁾	$	33,574	$	18,885	$	0	$	0	$	0
Home loan securitizations	0		0		211		74		554
Total securitization-related VIEs	33,574		18,885		211		74		554
Other VIEs:⁽²⁾
Affordable housing entities	243		17		4,238		1,303		4,238
Entities that provide capital to low-income and rural communities	1,739		117		0		0		0
Other	0		0		353		0		353
Total other VIEs	1,982		134		4,591		1,303		4,591
Total VIEs	$	35,556	$	19,019	$	4,802	$	1,377	$	5,145



	December 31, 2017
	Consolidated				Unconsolidated
(Dollars in millions)	Carrying Amount of Assets		Carrying Amount of Liabilities		Carrying Amount of Assets		Carrying Amount of Liabilities		Maximum Exposure to Loss
Securitization-Related VIEs:
Credit card loan securitizations⁽¹⁾	$	34,976	$	20,651	$	0	$	0	$	0
Home loan securitizations	0		0		455		390		1,057
Total securitization-related VIEs	34,976		20,651		455		390		1,057
Other VIEs:⁽²⁾
Affordable housing entities	226		10		4,175		1,284		4,175
Entities that provide capital to low-income and rural communities	1,498		129		0		0		0
Other	0		0		318		0		318
Total other VIEs	1,724		139		4,493		1,284		4,493
Total VIEs	$	36,700	$	20,790	$	4,948	$	1,674	$	5,550

__________


⁽¹⁾	Represents the carrying amount of assets and liabilities owned by the VIE, which includes the seller’s interest and repurchased notes held by other related parties.

⁽²⁾

In certain investment structures, we consolidate a VIE which in turn holds as its primary asset an investment in an unconsolidated VIE. In these instances, we disclose the carrying amount of assets and liabilities on our consolidated balance sheets as unconsolidated VIEs to avoid duplicating our exposure, as the unconsolidated VIEs are generally the operating entities generating the exposure. The carrying amount of assets and liabilities included in the unconsolidated VIE columns above related to these investment structures were $2.3 billion of assets and $811 million of liabilities as of December 31, 2018 and $2.2 billion of assets and $901 million of liabilities as of December 31, 2017.

Securitization-Related VIEs

In a securitization transaction, assets are transferred to a trust, which generally meets the definition of a VIE. Our primary securitization activity is in the form of credit card securitizations, conducted through securitization trusts which we consolidate. Our continuing involvement in these securitization transactions mainly consists of acting as the primary servicer and holding certain retained interests.

We transfer multifamily commercial loans that we originate to the government-sponsored enterprises (“GSEs”) and retain the right to service the transferred loans pursuant to the guidelines set forth by the GSEs. Subsequent to such transfers, these loans are commonly securitized into CMBS by the GSEs. We also hold RMBS and CMBS in our investment securities portfolio, which represent an interest in the respective securitization trusts employed in the transactions under which those securities were issued. We do not consolidate the securitization trusts employed in these transactions as we do not have the power to direct the activities that most significantly impact the economic performance of these securitization trusts. Our maximum exposure to loss as a result of our involvement with these VIEs is the carrying value of MSRs and investment securities on our consolidated balance sheets. See “Note 7—Goodwill and Intangible Assets” for information related to our MSRs associated with these multifamily commercial loan securitizations and “Note 3—Investment Securities” for more information on the securities held in our investment securities portfolio. We exclude these VIEs from the tables within this note because we do not consider our continuing involvement with these VIEs to be significant as we either invest in securities issued by the VIE and were not involved in the design of the VIE or no transfers have occurred between the VIE and us. In addition, where we have certain lending arrangements in the normal course of business with entities that could be VIEs, we have also excluded these VIEs from the tables presented in this note. See “Note 4—Loans” for additional information regarding our lending arrangements in the normal course of business.

The table below presents our continuing involvement in certain securitization-related VIEs as of December 31, 2018 and 2017.

Table 6.2: Continuing Involvement in Securitization-Related VIEs



(Dollars in millions)	Credit Card		Mortgages
December 31, 2018:
Securities held by third-party investors	$	18,307	$	1,276
Receivables in the trust	34,197		1,305
Cash balance of spread or reserve accounts	0		116
Retained interests	Yes		Yes
Servicing retained	Yes		Yes⁽¹⁾
December 31, 2017:
Securities held by third-party investors	$	20,010	$	1,774
Receivables in the trust	35,667		1,812
Cash balance of spread or reserve accounts	0		124
Retained interests	Yes		Yes
Servicing retained	Yes		Yes⁽¹⁾

__________


⁽¹⁾	We retain servicing on a portion of our remaining mortgage loans in mortgage securitizations.

Credit Card Securitizations

We securitize a portion of our credit card loans which provides a source of funding for us. The credit card securitizations involve the transfer of credit card receivables from our balance sheet to securitization trusts. These trusts then issue debt securities collateralized by the transferred receivables to third-party investors. We hold certain retained interests in our credit card securitizations and continue to service the receivables in these trusts. We consolidate these trusts because we are deemed to be the primary beneficiary as we have the power to direct the activities that most significantly impact the economic performance of the trusts, and the right to receive benefits or the obligation to absorb losses that could potentially be significant to the trusts.

Mortgage Securitizations

We had previously securitized mortgage loans by transferring these loans to securitization trusts that had issued mortgage-backed securities to investors. These mortgage trusts consist of option-adjustable rate mortgage (“option-ARM”) securitizations and securitizations from our discontinued operations which include the mortgage origination operations of our wholesale mortgage banking unit, GreenPoint Mortgage Funding, Inc. (“GreenPoint”) and the manufactured housing operations of GreenPoint Credit, LLC, a subsidiary of GreenPoint (collectively “GreenPoint securitizations”).

We continue to service a portion of the remaining mortgage loans in the option-ARM securitizations and also retain rights to certain future cash flows arising from these securitizations. We also retain servicing on a portion of the remaining mortgage loans in the GreenPoint securitizations and have the right to receive any funds remaining in the pre-funded letters of credit after the securities are released. We do not consolidate the mortgage securitizations because we do not have the right to receive the benefits nor the obligation to absorb losses that could potentially be significant to the trusts or we do not have the power to direct the activities that most significantly impact the economic performance of the trusts.

Other VIEs

Affordable Housing Entities

As part of our community reinvestment initiatives, we invest in private investment funds that make equity investments in multifamily affordable housing properties. We receive affordable housing tax credits for these investments. The activities of these entities are financed with a combination of invested equity capital and debt. We account for certain of our investments in qualified affordable housing projects using the proportional amortization method if certain criteria are met. The proportional amortization method amortizes the cost of the investment over the period in which the investor expects to receive tax credits and other tax benefits, and

the resulting amortization is recognized as a component of income tax expense attributable to continuing operations. For the years ended December 31, 2018 and 2017, we recognized amortization of $477 million and $582 million, respectively, and tax credits of $529 million and $504 million, respectively, associated with these investments within income tax provision. The carrying value of our equity investments in these qualified affordable housing projects was $4.2 billion and $3.9 billion as of December 31, 2018 and 2017, respectively. We are periodically required to provide additional financial or other support during the period of the investments. Our liability for these unfunded commitments was $1.5 billion and $1.4 billion as of December 31, 2018 and 2017, respectively and is largely expected to be paid from 2019 to 2021.

For those investment funds considered to be VIEs, we are not required to consolidate them if we do not have the power to direct the activities that most significantly impact the economic performance of those entities. We record our interests in these unconsolidated VIEs in loans held for investment, other assets and other liabilities on our consolidated balance sheets. Our maximum exposure to these entities is limited to our variable interests in the entities which consisted of assets of approximately $4.2 billion as of both December 31, 2018 and 2017. The creditors of the VIEs have no recourse to our general credit and we do not provide additional financial or other support other than during the period that we are contractually required to provide it. The total assets of the unconsolidated VIE investment funds were approximately $10.8 billion and $11.5 billion as of December 31, 2018 and 2017, respectively.

Entities that Provide Capital to Low-Income and Rural Communities

We hold variable interests in entities (“Investor Entities”) that invest in community development entities (“CDEs”) that provide debt financing to businesses and non-profit entities in low-income and rural communities. Variable interests in the CDEs held by the consolidated Investor Entities are also our variable interests. The activities of the Investor Entities are financed with a combination of invested equity capital and debt. The activities of the CDEs are financed solely with invested equity capital. We receive federal and state tax credits for these investments. We consolidate the VIEs in which we have the power to direct the activities that most significantly impact the VIE’s economic performance and where we have the obligation to absorb losses or right to receive benefits that could be potentially significant to the VIE. We have also consolidated other investments and CDEs that are not considered to be VIEs, but where we hold a controlling financial interest. The assets of the VIEs that we consolidated, which totaled approximately $1.7 billion and $1.5 billion as of December 31, 2018 and 2017, respectively, are reflected on our consolidated balance sheets in cash, loans held for investment, and other assets. The liabilities are reflected in other liabilities. The creditors of the VIEs have no recourse to our general credit. We have not provided additional financial or other support other than during the period that we are contractually required to provide it.

Other

Other VIEs include variable interests that we hold in companies that promote renewable energy sources and other equity method investments. We were not required to consolidate these entities because we do not have the power to direct the activities that most significantly impact their economic performance. Our maximum exposure to these entities is limited to the investment on our consolidated balance sheets of $353 million and $318 million as of December 31, 2018 and 2017, respectively. The creditors of the other VIEs have no recourse to our general credit. We have not provided additional financial or other support other than during the period that we are contractually required to provide it.

Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

NOTE 7—GOODWILL AND INTANGIBLE ASSETS

The table below presents our goodwill, intangible assets and MSRs as of December 31, 2018 and 2017. Goodwill is presented separately, while intangible assets and MSRs are included in other assets on our consolidated balance sheets.

Table 7.1: Components of Goodwill, Intangible Assets and MSRs



	December 31, 2018
(Dollars in millions)	Carrying Amount of Assets		Accumulated Amortization			Net Carrying Amount		Remaining Amortization Period
Goodwill	$	14,544	N/A			$	14,544	N/A
Intangible assets:
Purchased credit card relationship (“PCCR”) intangibles	2,102		$	(1,952	)	150		3.7 years
Core deposit intangibles	1,149		(1,148		)	1		0.2 years
Other⁽¹⁾	271		(168		)	103		7.1 years
Total intangible assets	3,522		(3,268		)	254		5.0 years
Total goodwill and intangible assets	$	18,066	$	(3,268	)	$	14,798
Commercial MSRs⁽²⁾	$	459	$	(185	)	$	274

	December 31, 2017
(Dollars in millions)	Carrying Amount of Assets		Accumulated Amortization			Net Carrying Amount		Remaining Amortization Period
Goodwill	$	14,533	N/A			$	14,533	N/A
Intangible assets:
PCCR intangibles	2,105		$	(1,844	)	261		3.6 years
Core deposit intangibles	1,149		(1,133		)	16		1.0 years
Other⁽¹⁾	300		(156		)	144		7.8 years
Total intangible assets	3,554		(3,133		)	421		4.9 years
Total goodwill and intangible assets	$	18,087	$	(3,133	)	$	14,954
MSRs:
Consumer MSRs⁽³⁾	$	92	N/A			$	92
Commercial MSRs⁽²⁾	355		$	(126	)	229
Total MSRs	$	447	$	(126	)	$	321

__________


⁽¹⁾	Primarily consists of intangibles for sponsorship relationships, partnership and other contract intangibles and trade name intangibles.


⁽²⁾	Commercial MSRs are accounted for under the amortization method on our consolidated balance sheets. We recorded $59 million and $44 million of amortization expense for the years ended December 31, 2018 and 2017, respectively.


⁽³⁾	Consumer MSRs were carried at fair value on our consolidated balance sheets as of December 31, 2017. In the first quarter of 2018, we sold the substantial majority of these MSRs.

Goodwill

The following table presents changes in the carrying amount of goodwill by each of our business segments as of December 31, 2018 and 2017. We did not recognize any goodwill impairment during 2018, 2017 or 2016.

Table 7.2: Goodwill by Business Segments



(Dollars in millions)	Credit Card			Consumer Banking		Commercial Banking			Total
Balance as of December 31, 2015	$	4,997		$	4,600	$	4,883		$	14,480
Acquisitions	36			0		18			54
Other adjustments⁽¹⁾	(15		)	0		0			(15		)
Balance as of December 31, 2016	5,018			4,600		4,901			14,519
Acquisitions	6			0		0			6
Other adjustments⁽¹⁾	8			0		0			8
Balance as of December 31, 2017	5,032			4,600		4,901			14,533
Acquisitions	33			0		0			33
Reductions in goodwill related to divestitures	0			0		(17		)	(17		)
Other adjustments⁽¹⁾	(5		)	0		0			(5		)
Balance as of December 31, 2018	$	5,060		$	4,600	$	4,884		$	14,544

__________


⁽¹⁾	Represents foreign currency translation adjustments.

The goodwill impairment test, performed as of October 1 of each year, is a two-step test. The first step identifies whether there is potential impairment by comparing the fair value of a reporting unit to its carrying amount, including goodwill. If the fair value of a reporting unit is less than its carrying amount, the second step of the impairment test is required to measure the amount of any potential impairment loss.

The fair value of reporting units is calculated using a discounted cash flow methodology, a form of the income approach. The calculation uses projected cash flows based on each reporting unit’s internal forecast and uses the perpetuity growth method to calculate terminal values. These cash flows and terminal values are then discounted using appropriate discount rates, which are largely based on our external cost of equity with adjustments for risk inherent in each reporting unit. Cash flows are adjusted, as necessary, in order to maintain each reporting unit’s equity capital requirements. Our discounted cash flow analysis requires management to make judgments about future loan and deposit growth, revenue growth, credit losses, and capital rates. The key inputs into the discounted cash flow analysis were consistent with market data, where available, indicating that assumptions used were within a reasonable range of observable market data.

Intangible Assets

In connection with our acquisitions, we recorded intangible assets that include PCCR intangibles, core deposit intangibles, brokerage relationship intangibles, partnership contract intangibles, other contract intangibles and trademark intangibles. At acquisition, the PCCR intangibles reflect the estimated value of existing credit card holder relationships and the core deposit intangibles reflect the estimated value of deposit relationships. There were no meaningful impairments of intangible assets in 2018 and 2017. We recorded an impairment charge of $17 million in 2016 related primarily to our brokerage relationship intangibles.

Intangible assets are typically amortized over their respective estimated useful lives on either an accelerated or straight-line basis. The following table summarizes the actual amortization expense recorded for the years ended December 31, 2018, 2017 and 2016 and the estimated future amortization expense for intangible assets as of December 31, 2018:

Table 7.3: Amortization Expense



(Dollars in millions)	Amortization Expense
Actual for the year ended December 31,
2016	$	386
2017	245
2018	174
Estimated future amounts for the year ended December 31,
2019	109
2020	58
2021	28
2022	20
2023	14
Thereafter	17
Total estimated future amounts	$	246

Premises, Equipment & Lease Commitments

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment and Lease Commitments [Abstract]

Premises, Equipment & Lease Commitments

NOTE 8—PREMISES, EQUIPMENT AND LEASE COMMITMENTS

Premises and Equipment

The following table presents our premises and equipment as of December 31, 2018 and 2017.

Table 8.1: Components of Premises and Equipment



	December 31,
(Dollars in millions)	2018			2017
Land	$	386		$	406
Buildings and improvements	3,994			3,302
Furniture and equipment	2,018			1,901
Computer software	1,847			1,753
In progress	482			902
Total premises and equipment, gross	8,727			8,264
Less: Accumulated depreciation and amortization	(4,536		)	(4,231		)
Total premises and equipment, net	$	4,191		$	4,033

Depreciation and amortization expense was $728 million, $662 million and $710 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Lease Commitments

Certain premises and equipment are leased under agreements that expire at various dates through 2071, without taking into consideration available renewal options. Many of these leases provide for payment by us, as the lessee, of variable costs including property taxes, insurance premiums, cost of maintenance and other costs. Total rent expense was $322 million, $307 million and $330 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Future minimum rental commitments as of December 31, 2018, for all non-cancellable operating leases with initial or remaining terms of one year or more are as follows:

Table 8.2: Lease Commitments



(Dollars in millions)	Estimated Future Minimum Rental Commitments
2019	$	352
2020	309
2021	279
2022	249
2023	213
Thereafter	949
Total	$	2,351

The table above does not include minimum sublease rental income of $183 million expected to be received in future years under all non-cancellable leases.

Deposits and Borrowings

12 Months Ended

Dec. 31, 2018

Deposits and Borrowings [Abstract]

Deposits and Borrowings

NOTE 9—DEPOSITS AND BORROWINGS

Our deposits, which are our largest source of funding for our assets and operations, consist of non-interest-bearing and interest-bearing deposits, which include checking accounts, money market deposit accounts, negotiable order of withdrawals, savings deposits and time deposits.

We use a variety of other funding sources including short-term borrowings, senior and subordinated notes, securitized debt obligations and other borrowings. In addition, we utilize FHLB advances, which are secured by certain portions of our loan and investment securities portfolios. Securitized debt obligations are presented separately on our consolidated balance sheets, as they represent obligations of consolidated securitization trusts, while federal funds purchased and securities loaned or sold under agreements to repurchase, senior and subordinated notes and other borrowings, including FHLB advances, are included in other debt on our consolidated balance sheets.

The following tables summarize the components of our deposits, short-term borrowings and long-term debt as of December 31, 2018 and 2017. Our total short-term borrowings consist of federal funds purchased, securities loaned or sold under agreements to repurchase, and short-term FHLB advances. Our long-term debt consists of borrowings with an original contractual maturity of greater than one year. The carrying value presented below for these borrowings includes unamortized debt premiums and discounts, net of debt issuance costs and fair value hedge accounting adjustments.

Table 9.1: Components of Deposits, Short-Term Borrowings and Long-Term Debt



(Dollars in millions)	December 31, 2018		December 31, 2017
Deposits:
Non-interest-bearing deposits	$	23,483	$	26,404
Interest-bearing deposits⁽¹⁾	226,281		217,298
Total deposits	$	249,764	$	243,702
Short-term borrowings:
Federal funds purchased and securities loaned or sold under agreements to repurchase	$	352	$	576
FHLB advances	9,050		0
Total short-term borrowings	$	9,402	$	576



	December 31, 2018						December 31, 2017
(Dollars in millions)	Maturity Dates	Stated Interest Rates	Weighted- Average Interest Rate		Carrying Value		Carrying Value
Long-term debt:
Securitized debt obligations	2019-2025	1.33 - 3.31%	2.31	%	$	18,307	$	20,010
Senior and subordinated notes:
Fixed unsecured senior debt	2019-2028	1.85 - 4.75	3.03		23,290		22,776
Floating unsecured senior debt	2019-2023	2.97 - 3.72	3.39		2,993		3,446
Total unsecured senior debt			3.08		26,283		26,222
Fixed unsecured subordinated debt	2019-2026	3.38 - 8.80	4.09		4,543		4,533
Total senior and subordinated notes					30,826		30,755
Other long-term borrowings:
FHLB advances	2020-2023	2.48 - 5.36	2.49		251		8,609
Other borrowings	2019-2035	1.00 - 13.63	6.16		119		331
Total other long-term borrowings					370		8,940
Total long-term debt					$	49,503	$	59,705
Total short-term borrowings and long-term debt					$	58,905	$	60,281

__________


⁽¹⁾	Includes $4.0 billion and $1.3 billion of time deposits in denominations in excess of the $250,000 federal insurance limit as of December 31, 2018 and 2017, respectively.

The following table presents the carrying value of our interest-bearing time deposits, securitized debt obligations and other debt by remaining contractual maturity as of December 31, 2018.

Table 9.2: Maturity Profile of Borrowings



(Dollars in millions)	2019		2020		2021		2022		2023		Thereafter		Total
Interest-bearing time deposits	$	22,548	$	6,524	$	4,065	$	4,036	$	1,176	$	122	$	38,471
Securitized debt obligations	6,845		5,266		2,298		2,531		714		653		18,307
Federal funds purchased and securities loaned or sold under agreements to repurchase	352		0		0		0		0		0		352
Senior and subordinated notes	5,314		4,350		4,920		2,504		4,163		9,575		30,826
Other borrowings	9,060		310		6		6		5		33		9,420
Total	$	44,119	$	16,450	$	11,289	$	9,077	$	6,058	$	10,383	$	97,376

Derivative Instruments and Hedging Activities

12 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments and Hedging Activities

NOTE 10—DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

Use of Derivatives and Accounting for Derivatives

We regularly enter into derivative transactions to support our overall risk management activities. Our primary market risks stem from the impact on our earnings and economic value of equity due to changes in interest rates and, to a lesser extent, changes in foreign exchange rates. We manage our interest rate sensitivity by employing several techniques, which include changing the duration and re-pricing characteristics of various assets and liabilities by using interest rate derivatives. We also use foreign currency derivatives to limit our earnings and capital exposures to foreign exchange risk by hedging exposures denominated in foreign currencies. In addition to interest rate and foreign currency derivatives, we may also use a variety of other derivative instruments, including caps, floors, options, futures and forward contracts, to manage our interest rate and foreign exchange risks. We designate these risk management derivatives as either qualifying accounting hedges or free-standing derivatives. Qualifying accounting hedges are further designated as fair value hedges, cash flow hedges or net investment hedges, and free-standing derivatives are economic hedges that do not qualify for hedge accounting.

We also offer various interest rate, commodity and foreign currency derivatives as accommodation to our customers within our Commercial Banking business. We enter into these derivatives with our customers primarily to help them manage interest rate risks, hedge their energy and other commodities exposures, and manage foreign currency fluctuations. We then enter into offsetting derivative contracts with counterparties to economically hedge the majority of our subsequent exposures.

See below for additional information on our use of derivatives and how we account for them:

•

Fair Value Hedges: We designate derivatives as fair value hedges when they are used to manage our exposure to changes in the fair value of certain financial assets and liabilities, which fluctuate in value as a result of movements in interest rates. Changes in the fair value of derivatives designated as fair value hedges are presented in the same line item on our consolidated statements of income as the earnings effect of the hedged items. Our fair value hedges consist of interest rate swaps that are intended to modify our exposure to interest rate risk on various fixed-rate financial assets and liabilities.

•

Cash Flow Hedges: We designate derivatives as cash flow hedges when they are used to manage our exposure to variability in cash flows related to forecasted transactions. Changes in the fair value of derivatives designated as cash flow hedges are recorded as a component of AOCI. Those amounts are reclassified into earnings in the same period during which the forecasted transactions impact earnings and presented in the same line item on our consolidated statements of income as the earnings effect of the hedged items. Our cash flow hedges use interest rate swaps and floors that are intended to hedge the variability in interest receipts or interest payments on some of our variable-rate financial assets or liabilities. We also enter into foreign currency forward contracts to hedge our exposure to variability in cash flows related to intercompany borrowings denominated in a foreign currency.

•

Net Investment Hedges: We use net investment hedges to manage the foreign currency exposure related to our net investments in foreign operations that have functional currencies other than the U.S. dollar. Changes in the fair value of net investment hedges are recorded in the translation adjustment component of AOCI, offsetting the translation gain or loss from those foreign operations. We execute net investment hedges using foreign currency forward contracts to hedge the translation exposure of the net investment in our foreign operations under the forward method.

•

Free-Standing Derivatives: Our free-standing derivatives primarily consist of our customer accommodation derivatives and other economic hedges. The customer accommodation derivatives and the related offsetting contracts are mainly interest rate, commodity and foreign currency contracts. The other free-standing derivatives are primarily used to economically hedge the risk of changes in the fair value of our commercial mortgage loan origination and purchase commitments as well as other interests held. Changes in the fair value of free-standing derivatives are recorded in earnings as a component of other non-interest income.

In the first quarter of 2018, we adopted ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The disclosures below reflect the adoption changes.

Derivatives Counterparty Credit Risk

Counterparty Types

Derivative instruments contain an element of credit risk that arises from the potential failure of a counterparty to perform according to the terms of the contract. We execute our derivative contracts primarily in over-the-counter (“OTC”) markets. We also execute minimal amounts of interest rate and commodity futures in the exchange-traded derivative markets. Our OTC derivatives consist of both centrally cleared and uncleared bilateral contracts. In our centrally cleared contracts, our counterparties are central counterparty clearinghouses (“CCPs”), such as the Chicago Mercantile Exchange (“CME”) and the LCH Group (“LCH”). In our uncleared bilateral contracts, we enter into agreements directly with our derivative counterparties.

Counterparty Credit Risk Management

We generally manage our counterparty credit risk associated with derivative instruments by entering into legally enforceable master netting arrangements, where possible, and exchanging margin and collateral with our counterparties, typically in the form of cash or high-quality liquid securities. The amount of collateral exchanged is dependent upon the fair value of the derivative instruments as well as the fair value of the pledged collateral. When valuing collateral, an estimate of the variation in price and liquidity over time is subtracted in the form of a “haircut” to discount the value of the collateral pledged. Our exposure to derivative counterparty credit risk, at any point in time, is equal to the amount reported as a derivative asset on our balance sheet. The fair value of derivatives is adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements and any associated cash collateral received or pledged. See Table 10.3 for our net exposure associated with derivatives.

The terms under which we collateralize our exposures differ between cleared exposures and uncleared bilateral exposures.

•

CCPs: We clear eligible OTC derivatives as part of our regulatory requirements with CCPs. Futures commission merchants (“FCMs”) serve as the intermediary between CCPs and us. CCPs require that we post initial and variation margin through our FCMs to mitigate the risk of non-payment or default. Initial margin is required upfront by CCPs as collateral against potential losses on our cleared derivative contracts. Variation margin is exchanged on a daily basis to account for mark-to-market changes in the derivative contracts. For CME-cleared OTC derivatives, we characterize variation margin cash payments as settlements. Effective January 16, 2018, LCH amended its rulebook to legally characterize variation margin payments as settlements. We adopted this rule change in the first quarter of 2018. As a result, the balances for the LCH-cleared OTC derivatives are reduced to reflect the settlement of these positions. Our FCM agreements governing these derivative transactions include provisions that may require us to post additional collateral.

•

Bilateral Counterparties: We generally enter into legally enforceable master netting agreements and collateral agreements, where possible, with bilateral derivative counterparties to mitigate the risk of default. We review our collateral positions on a daily basis and exchange collateral with our counterparties in accordance with these agreements. These bilateral agreements typically provide the right to offset exposure with the same counterparty and require the party in a net liability position to post collateral. Agreements with certain bilateral counterparties require both parties to maintain collateral in the event the fair values of derivative instruments exceed established exposure thresholds. Certain of these bilateral agreements include provisions requiring that our debt maintain a credit rating of investment grade or above by each of the major credit rating agencies. In the event of a downgrade of our debt credit rating below investment grade, some of our counterparties would have the right to terminate the derivative contract and close out the existing positions.

Credit Risk Valuation Adjustments

We record counterparty credit valuation adjustments (“CVAs”) on our derivative assets to properly reflect the credit quality of the counterparty. We consider collateral and legally enforceable master netting agreements that mitigate our credit exposure to each counterparty in determining CVA, which may be adjusted in future periods due to changes in the fair values of the derivative contracts, collateral and creditworthiness of the counterparty. We also record debit valuation adjustments (“DVAs”) to adjust the fair values of our derivative liabilities to reflect the impact of our own credit quality. We calculate this adjustment by comparing the spreads on our credit default swaps to the discount benchmark curve.

Balance Sheet Presentation

The following table summarizes the notional and fair values of our derivative instruments as of December 31, 2018 and 2017, which are segregated by derivatives that are designated as accounting hedges and those that are not, and are further segregated by type of contract within those two categories. The total derivative assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements and any associated cash collateral received or pledged. Derivative assets and liabilities are included in other assets and other liabilities, respectively, on our consolidated balance sheets.

Table 10.1: Derivative Assets and Liabilities at Fair Value



	December 31, 2018								December 31, 2017
	Notional or Contractual Amount		Derivative⁽¹⁾⁽²⁾						Notional or Contractual Amount		Derivative⁽¹⁾
(Dollars in millions)	Notional or Contractual Amount		Assets			Liabilities			Notional or Contractual Amount		Assets			Liabilities
Derivatives designated as accounting hedges:
Interest rate contracts:
Fair value hedges	$	53,413	$	64		$	28		$	56,604	$	102		$	164
Cash flow hedges	81,200		83			70			77,300		30			125
Total interest rate contracts	134,613		147			98			133,904		132			289
Foreign exchange contracts:
Cash flow hedges	5,745		184			2			6,086		19			75
Net investment hedges	2,607		178			0			3,036		1			164
Total foreign exchange contracts	8,352		362			2			9,122		20			239
Total derivatives designated as accounting hedges	142,965		509			100			143,026		152			528
Derivatives not designated as accounting hedges:
Customer accommodation:
Interest rate contracts	49,386		190			256			39,429		316			221
Commodity contracts	10,673		797			786			8,111		518			496
Foreign exchange and other contracts	1,418		12			11			980		14			10
Total customer accommodation	61,477		999			1,053			48,520		848			727
Other interest rate exposures⁽³⁾	6,427		29			36			3,857		40			8
Other contracts	1,636		2			12			1,209		0			5
Total derivatives not designated as accounting hedges	69,540		1,030			1,101			53,586		888			740
Total derivatives	$	212,505	$	1,539		$	1,201		$	196,612	$	1,040		$	1,268
Less: netting adjustment⁽⁴⁾			(1,079		)	(287		)			(275		)	(662		)
Total derivative assets/liabilities			$	460		$	914				$	765		$	606

__________


⁽¹⁾	Derivative assets and liabilities presented above exclude valuation adjustments related to non-performance risk. As of December 31, 2018 and 2017, the cumulative CVA balances were $3 million and $2 million, respectively, and the cumulative DVA balances were approximately $1 million as of both December 31, 2018 and 2017.


⁽²⁾	Reflects a reduction in derivative assets of $431 million and a reduction in derivative liabilities of $397 million on our consolidated balance sheets as a result of adopting the LCH variation margin rule change in the first quarter of 2018.


⁽³⁾	Other interest rate exposures include commercial mortgage-related derivatives and interest rate swaps.


⁽⁴⁾	Represents balance sheet netting of derivative assets and liabilities, and related payables and receivables for cash collateral held or placed with the same counterparty.

The following table summarizes the carrying value of our hedged assets and liabilities in fair value hedges and the associated cumulative basis adjustments included in those carrying values as of December 31, 2018.

Table 10.2: Hedged Items in Fair Value Hedging Relationships



	December 31, 2018
	Carrying Amount Assets/(Liabilities)			Cumulative Amount of Basis Adjustments Included in the Carrying Amount
(Dollars in millions)	Carrying Amount Assets/(Liabilities)			Total Assets/(Liabilities)			Discontinued-Hedging Relationships
Line item on our consolidated balance sheets in which the hedged item is included:
Investment securities available for sale⁽¹⁾⁽²⁾	$	14,067		$	(6	)	$	(2	)
Interest-bearing deposits	(13,101		)	247			0
Securitized debt obligations	(5,887		)	168			143
Senior and subordinated notes	(23,572		)	315			392

__________

⁽¹⁾

These amounts include the amortized cost basis of our investment securities designated in hedging relationships for which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. As of December 31, 2018, the amortized cost basis of this portfolio was $8.3 billion, the amount of the designated hedged items was $4.0 billion, and the cumulative basis adjustment associated with these hedges was $26 million.


⁽²⁾	Carrying value represents amortized cost.

Balance Sheet Offsetting of Financial Assets and Liabilities

Derivative contracts and repurchase agreements that we execute bilaterally in the OTC market are governed by enforceable master netting arrangements where we generally have the right to offset exposure with the same counterparty. Either counterparty can generally request to net settle all contracts through a single payment upon default on, or termination of, any one contract. We elect to offset the derivative assets and liabilities under netting arrangements for balance sheet presentation where a right of setoff exists. For derivative contracts entered into under master netting arrangements for which we have not been able to confirm the enforceability of the setoff rights, or those not subject to master netting arrangements, we do not offset our derivative positions for balance sheet presentation.

The following table presents as of December 31, 2018 and 2017 the gross and net fair values of our derivative assets and liabilities and repurchase agreements, as well as the related offsetting amounts permitted under U.S. GAAP. The table also includes cash and non-cash collateral received or pledged in accordance with such arrangements. The amount of collateral presented, however, is limited to the amount of the related net derivative fair values or outstanding balances; therefore, instances of over-collateralization are excluded.

Table 10.3: Offsetting of Financial Assets and Financial Liabilities



	Gross Amounts		Gross Amounts Offset in the Balance Sheet						Net Amounts as Recognized		Securities Collateral Held Under Master Netting Agreements
(Dollars in millions)	Gross Amounts		Financial Instruments			Cash Collateral Received			Net Amounts as Recognized		Securities Collateral Held Under Master Netting Agreements		Net Exposure
As of December 31, 2018
Derivative assets⁽¹⁾⁽²⁾	$	1,539	$	(205	)	$	(874	)	$	460	$	0	$	460
As of December 31, 2017
Derivative assets⁽¹⁾	1,040		(202		)	(73		)	765		0		765



	Gross Amounts		Gross Amounts Offset in the Balance Sheet						Net Amounts as Recognized		Securities Collateral Pledged Under Master Netting Agreements
(Dollars in millions)	Gross Amounts		Financial Instruments			Cash Collateral Pledged			Net Amounts as Recognized					Net Exposure
As of December 31, 2018
Derivative liabilities⁽¹⁾⁽²⁾	$	1,201	$	(205	)	$	(82	)	$	914	$	0		$	914
Repurchase agreements⁽³⁾	352		0			0			352		(352		)	0
As of December 31, 2017
Derivative liabilities⁽¹⁾	1,268		(202		)	(460		)	606		0			606
Repurchase agreements	576		0			0			576		(576		)	0

__________

⁽¹⁾

We received cash collateral from derivative counterparties totaling $925 million and $91 million as of December 31, 2018 and 2017, respectively. We also received securities from derivative counterparties with a fair value of $1 million as of both December 31, 2018 and 2017, which we have the ability to re-pledge. We posted $633 million and $966 million of cash collateral as of December 31, 2018 and 2017, respectively.


⁽²⁾	Reflects a reduction in derivative assets of $431 million and a reduction in derivative liabilities of $397 million on our consolidated balance sheets as a result of adopting the LCH variation margin rule change in the first quarter of 2018.


⁽³⁾	Represents customer repurchase agreements that mature the next business day. As of December 31, 2018, we pledged collateral with a fair value of $359 million under these customer repurchase agreements, which were primarily agency RMBS securities.

Income Statement and AOCI Presentation

Fair Value and Cash Flow Hedges

The net gains (losses) recognized in our consolidated statements of income related to derivatives in fair value and cash flow hedging relationships are presented below for the years ended December 31, 2018, 2017 and 2016. Prior period amounts were not reclassified to conform to the current period presentation.

Table 10.4: Effects of Fair Value and Cash Flow Hedge Accounting



	Year Ended December 31, 2018
	Net Interest Income																	Non-Interest Income
(Dollars in millions)	Investment Securities			Loans, Including Loans Held for Sale			Other		Deposits			Securitized Debt Obligations			Senior and Subordinated Notes			Other
Total amounts presented in our consolidated statements of income	$	2,211		$	24,728		$	237	$	(2,598	)	$	(496	)	$	(1,125	)	$	1,002
Fair value hedging relationships:
Interest rate contracts:
Interest recognized on derivatives	(23		)	0			0		(76		)	(53		)	2			0
Gains (losses) recognized on derivatives	34			0			0		(60		)	(61		)	(212		)	0
Gains (losses) recognized on hedged items⁽¹⁾	(33		)	0			0		52			38			131			0
Net income (expense) recognized on fair value hedges	(22		)	0			0		(84		)	(76		)	(79		)	0
Cash flow hedging relationships:⁽²⁾
Interest rate contracts:
Realized gains (losses) reclassified from AOCI into net income	(9		)	(82		)	0		0			0			0			0
Foreign exchange contracts:
Realized gains (losses) reclassified from AOCI into net income⁽³⁾	0			0			47		0			0			0			(2		)
Net income (expense) recognized on cash flow hedges	$	(9	)	$	(82	)	$	47	$	0		$	0		$	0		$	(2	)

__________


⁽¹⁾	Includes amortization expense of $75 million for the year ended December 31, 2018 related to basis adjustments on discontinued hedges.


⁽²⁾	See “Note 11—Stockholders’ Equity” for the effects of cash flow and net investment hedges on AOCI and amounts reclassified to net income, net of tax.


⁽³⁾	The amount recognized in non-interest income represents the net impact of $191 million of realized gains on foreign exchange contracts reclassified from AOCI into net income to offset $193 million of foreign currency transaction losses on our foreign currency denominated inter-company borrowings for the year ended December 31, 2018.



	Year Ended December 31,
(Dollars in millions)	2017			2016
Derivatives designated as fair value hedges:
Fair value interest rate contracts:
Gains (losses) recognized in net income on derivatives	$	(212	)	$	(613	)
Gains (losses) recognized in net income on hedged items	216			603
Net fair value hedge ineffectiveness gains (losses)	4			(10		)
Derivatives designated as cash flow hedges:
Gains (losses) reclassified from AOCI into net income:
Interest rate contracts	91			192
Foreign exchange contracts	17			3
Subtotal	108			195
Gains (losses) recognized in net income due to ineffectiveness:
Interest rate contracts	2			(4		)
Net derivative gains (losses) recognized in net income	$	110		$	191

In the next 12 months, we expect to reclassify to earnings net after-tax losses of $167 million recorded in AOCI as of December 31, 2018. These amounts will offset the cash flows associated with the hedged forecasted transactions. The maximum length of time over which forecasted transactions were hedged was approximately five years as of December 31, 2018. The amount we expect to reclassify into earnings may change as a result of changes in market conditions and ongoing actions taken as part of our overall risk management strategy.

Free-Standing Derivatives

The net impacts to our consolidated statements of income related to free-standing derivatives are presented below for the years ended December 31, 2018, 2017 and 2016. These gains or losses are recognized in other non-interest income on our consolidated statements of income.

Table 10.5: Gains (Losses) on Free-Standing Derivatives



	Year Ended December 31,
(Dollars in millions)	2018			2017		2016
Gains (losses) recognized in other non-interest income:
Customer accommodation:
Interest rate contracts	$	25		$	20	$	24
Commodity contracts	16			13		10
Foreign exchange and other contracts	7			5		3
Total customer accommodation	48			38		37
Other interest rate exposures	33			61		67
Other contracts	(21		)	0		(9		)
Total	$	60		$	99	$	95

Stockholders' Equity

12 Months Ended

Dec. 31, 2018

Equity [Abstract]

Stockholders' Equity

NOTE 11—STOCKHOLDERS’ EQUITY

Preferred Stock

The following table summarizes the Company’s preferred stock issued and outstanding as of December 31, 2018 and 2017.

Table 11.1: Preferred Stock Issued and Outstanding⁽¹⁾



			Redeemable by Issuer Beginning	Per Annum Dividend Rate		Dividend Frequency	Liquidation Preference per Share			Carrying Value (in millions)
Series	Description	Issuance Date	Redeemable by Issuer Beginning	Per Annum Dividend Rate		Dividend Frequency	Liquidation Preference per Share		Total Shares Outstanding	December 31, 2018		December 31, 2017
Series B	6.00% Non-Cumulative	August 20, 2012	September 1, 2017	6.00	%	Quarterly	$	1,000	875,000	$	853	$	853
Series C	6.25% Non-Cumulative	June 12, 2014	September 1, 2019	6.25		Quarterly	1,000		500,000	484		484
Series D	6.70% Non-Cumulative	October 31, 2014	December 1, 2019	6.70		Quarterly	1,000		500,000	485		485
Series E	Fixed-to-Floating Rate Non-Cumulative	May 14, 2015	June 1, 2020	5.55% through 5/31/2020; 3-mo. LIBOR+ 380 bps thereafter		Semi-Annually through 5/31/2020; Quarterly thereafter	1,000		1,000,000	988		988
Series F	6.20% Non-Cumulative	August 24, 2015	December 1, 2020	6.20		Quarterly	1,000		500,000	484		484
Series G	5.20% Non-Cumulative	July 29, 2016	December 1, 2021	5.20		Quarterly	1,000		600,000	583		583
Series H	6.00% Non-Cumulative	November 29, 2016	December 1, 2021	6.00		Quarterly	1,000		500,000	483		483
Total										$	4,360	$	4,360

__________


⁽¹⁾	Except for Series E, ownership is held in the form of depositary shares, each representing a 1/40th interest in a share of fixed-rate non-cumulative perpetual preferred stock.

Accumulated Other Comprehensive Income

Accumulated other comprehensive income primarily consists of accumulated net unrealized gains or losses associated with available for sale securities, the changes in fair value of derivatives designated as cash flow hedges, unrealized gains and losses on securities held to maturity on the transfer date from the available for sale category and foreign currency translation adjustments. Unrealized gains and losses for securities held to maturity are amortized over the remaining life of the security with no expected impact on future net income as amortization of these gains or losses will be offset by the amortization of premium or discount created from the transfer of securities from available to sale to held to maturity.

The following table includes the AOCI impacts from the adoption of accounting standards and the changes in AOCI by component for the years ended December 31, 2018, 2017 and 2016.

Table 11.2: Accumulated Other Comprehensive Income (Loss)



(Dollars in millions)	Securities Available for Sale			Securities Held to Maturity			Cash Flow Hedges			Foreign Currency Translation Adjustments⁽¹⁾			Other			Total
AOCI as of December 31, 2015	$	162		$	(725	)	$	120		$	(143	)	$	(30	)	$	(616	)
Other comprehensive income (loss) before reclassifications	(172		)	0			(3		)	(79		)	7			(247		)
Amounts reclassified from AOCI into earnings	6			104			(195		)	0			(1		)	(86		)
Other comprehensive income (loss), net of tax	(166		)	104			(198		)	(79		)	6			(333		)
AOCI as of December 31, 2016	(4		)	(621		)	(78		)	(222		)	(24		)	(949		)
Other comprehensive income (loss) before reclassifications	62			0			(95		)	84			30			81
Amounts reclassified from AOCI into earnings	(41		)	97			(108		)	0			(6		)	(58		)
Other comprehensive income (loss), net of tax	21			97			(203		)	84			24			23
AOCI as of December 31, 2017	17			(524		)	(281		)	(138		)	0			(926		)
Cumulative effects from adoption of new accounting standards	3			(113		)	(63		)	0			(28		)	(201		)
Transfer of securities held to maturity to available for sale⁽²⁾	(325		)	407			0			0			0			82
Other comprehensive income (loss) before reclassifications	(293		)	0			38			(39		)	(8		)	(302		)
Amounts reclassified from AOCI into earnings	159			40			(112		)	0			(3		)	84
Other comprehensive income (loss), net of tax	(459		)	447			(74		)	(39		)	(11		)	(136		)
AOCI as of December 31, 2018	$	(439	)	$	(190	)	$	(418	)	$	(177	)	$	(39	)	$	(1,263	)

__________


⁽¹⁾	Includes other comprehensive gain of $150 million, loss of $143 million and gain of $280 million for the years ended December 31, 2018, 2017 and 2016, respectively, from hedging instruments designated as net investment hedges.


⁽²⁾	In the first quarter of 2018, we made a one-time transfer of held to maturity securities with a carrying value of $9.0 billion to available for sale as a result of our adoption of ASU No. 2017-12. This transfer resulted in an after-tax gain of $82 million ($107 million pre-tax) to AOCI.

The following table presents the impacts on net income of amounts reclassified from each component of AOCI for the years ended December 31, 2018, 2017 and 2016.

Table 11.3: Reclassifications from AOCI




(Dollars in millions)		Year Ended December 31,
AOCI Components	Affected Income Statement Line Item	2018			2017			2016
Securities available for sale:
	Non-interest income	$	(209	)	$	65		$	(10	)
	Income tax provision (benefit)	(50		)	24			(4		)
	Net income (loss)	(159		)	41			(6		)
Securities held to maturity:⁽¹⁾
	Interest income	(53		)	(150		)	(164		)
	Income tax benefit	(13		)	(53		)	(60		)
	Net loss	(40		)	(97		)	(104		)
Cash flow hedges:
Interest rate contracts:	Interest income	(91		)	145			306
Foreign exchange contracts:	Interest income	47			27			6
	Non-interest income	191			1			(2		)
	Income from continuing operations before income taxes	147			173			310
	Income tax provision	35			65			115
	Net income	112			108			195
Other:
	Non-interest income and non-interest expense	4			9			2
	Income tax provision	1			3			1
	Net income	3			6			1
Total reclassifications		$	(84	)	$	58		$	86

__________

⁽¹⁾

The amortization of unrealized holding gains or losses reported in AOCI for securities held to maturity will be offset by the amortization of premium or discount created from the transfer of securities from available for sale to held to maturity, which occurred at fair value. These unrealized gains or losses will be amortized over the remaining life of the security with no expected impact on future net income.

The table below summarizes other comprehensive income (loss) activity and the related tax impact for the years ended December 31, 2018, 2017 and 2016.

Table 11.4: Other Comprehensive Income (Loss)



	Year Ended December 31,
	2018									2017									2016
(Dollars in millions)	Before Tax			Provision (Benefit)			After Tax			Before Tax			Provision (Benefit)			After Tax			Before Tax			Provision (Benefit)			After Tax
Other comprehensive income (loss):
Net unrealized gains (losses) on securities available for sale	$	(605	)	$	(146	)	$	(459	)	$	23		$	2		$	21		$	(254	)	$	(88	)	$	(166	)
Net changes in securities held to maturity	588			141			447			150			53			97			164			60			104
Net unrealized losses on cash flow hedges	(98		)	(24		)	(74		)	(325		)	(122		)	(203		)	(315		)	(117		)	(198		)
Foreign currency translation adjustments⁽¹⁾	9			48			(39		)	3			(81		)	84			86			165			(79		)
Other	(15		)	(4		)	(11		)	38			14			24			10			4			6
Other comprehensive income (loss)	$	(121	)	$	15		$	(136	)	$	(111	)	$	(134	)	$	23		$	(309	)	$	24		$	(333	)

__________

⁽¹⁾

Includes the impact of hedging instruments designated as net investment hedges.

Regulatory and Capital Adequacy

12 Months Ended

Dec. 31, 2018

Banking and Thrift [Abstract]

Regulatory and Capital Adequacy

NOTE 12—REGULATORY AND CAPITAL ADEQUACY

Regulation and Capital Adequacy

Bank holding companies (“BHCs”) and national banks are subject to capital adequacy standards adopted by the Federal Reserve, Office of the Comptroller of the Currency and Federal Deposit Insurance Corporation (collectively, the “Federal Banking Agencies”), including the Basel III Capital Rule. Moreover, the Banks, as insured depository institutions, are subject to prompt corrective action (“PCA”) capital regulations, which require the Federal Banking Agencies to take prompt corrective action for banks that do not meet PCA capital requirements. We entered parallel run under Advanced Approaches on January 1, 2015, during which we calculate capital ratios under both the Basel III Standardized Approach and the Basel III Advanced Approaches, though we continue to use the Standardized Approach for purposes of meeting regulatory capital requirements.

Under the Basel III Capital Rule, the regulatory minimum risk-based and leverage capital requirements for Advanced Approaches banking organizations include a common equity Tier 1 capital ratio of at least 4.5%, a Tier 1 capital ratio of at least 6.0%, a total capital ratio of at least 8.0% and a Tier 1 leverage capital ratio of at least 4.0%. The Basel III Capital Rule introduced a supplementary leverage ratio for all Advanced Approaches banking organizations, which compares Tier 1 capital to total leverage exposure, which includes all on-balance sheet assets and certain off-balance sheet exposures, including derivatives and unused commitments. Given that we are in our Basel III Advanced Approaches parallel run, we calculate the ratio based on Tier 1 capital under the Standardized Approach. The supplementary leverage ratio minimum requirement of 3.0% became effective on January 1, 2018.

For additional information about the capital adequacy guidelines we are subject to, see “PART I —Item 1. Business—Supervision and Regulation.”

The following table provides a comparison of our regulatory capital amounts and ratios under the Basel III Standardized Approach subject to the applicable transition provisions, the regulatory minimum capital adequacy ratios and the PCA well-capitalized level for each ratio,where applicable, as of December 31, 2018 and 2017.

Table 12.1: Capital Ratios Under Basel III⁽¹⁾



	December 31, 2018								December 31, 2017
(Dollars in millions)	Capital Amount		Capital Ratio		Minimum Capital Adequacy		Well- Capitalized		Capital Amount		Capital Ratio		Minimum Capital Adequacy		Well- Capitalized
Capital One Financial Corp:
Common equity Tier 1 capital⁽²⁾	$	33,071	11.2	%	4.5	%	N/A		$	30,036	10.3	%	4.5	%	N/A
Tier 1 capital⁽³⁾	37,431		12.7		6.0		6.0	%	34,396		11.8		6.0		6.0	%
Total capital⁽⁴⁾	44,645		15.1		8.0		10.0		41,962		14.4		8.0		10.0
Tier 1 leverage⁽⁵⁾	37,431		10.7		4.0		N/A		34,396		9.9		4.0		N/A
Supplementary leverage⁽⁶⁾	37,431		9.0		3.0		N/A		34,396		8.4		N/A		N/A
COBNA:
Common equity Tier 1 capital⁽²⁾	16,378		15.3		4.5		6.5		14,791		14.3		4.5		6.5
Tier 1 capital⁽³⁾	16,378		15.3		6.0		8.0		14,791		14.3		6.0		8.0
Total capital⁽⁴⁾	18,788		17.6		8.0		10.0		17,521		16.9		8.0		10.0
Tier 1 leverage⁽⁵⁾	16,378		14.0		4.0		5.0		14,791		12.7		4.0		5.0
Supplementary leverage⁽⁶⁾	16,378		11.5		3.0		N/A		14,791		10.4		N/A		N/A
CONA:
Common equity Tier 1 capital⁽²⁾	25,637		13.0		4.5		6.5		23,771		12.2		4.5		6.5
Tier 1 capital⁽³⁾	25,637		13.0		6.0		8.0		23,771		12.2		6.0		8.0
Total capital⁽⁴⁾	27,912		14.2		8.0		10.0		26,214		13.4		8.0		10.0
Tier 1 leverage⁽⁵⁾	25,637		9.1		4.0		5.0		23,771		8.6		4.0		5.0
Supplementary leverage⁽⁶⁾	25,637		8.0		3.0		N/A		23,771		7.7		N/A		N/A

__________

⁽¹⁾

Capital ratios are calculated based on the Basel III Standardized Approach framework, subject to applicable transition provisions, such as the inclusion of the unrealized gains and losses on securities available for sale included in AOCI and adjustments related to intangible assets other than goodwill. The inclusion of AOCI and the adjustments related to intangible assets are phased-in at 80% for 2017 and 100% for 2018. Capital requirements that are not applicable are denoted by “N/A.”


⁽²⁾	Common equity Tier 1 capital ratio is a regulatory capital measure calculated based on common equity Tier 1 capital divided by risk-weighted assets.


⁽³⁾	Tier 1 capital ratio is a regulatory capital measure calculated based on Tier 1 capital divided by risk-weighted assets.


⁽⁴⁾	Total capital ratio is a regulatory capital measure calculated based on total capital divided by risk-weighted assets.


⁽⁵⁾	Tier 1 leverage ratio is a regulatory capital measure calculated based on Tier 1 capital divided by adjusted average assets.


⁽⁶⁾	Supplementary leverage ratio is a regulatory capital measure calculated based on Tier 1 capital divided by total leverage exposure.

We exceeded the minimum capital requirements and each of the Banks exceeded the minimum regulatory requirements and were well-capitalized under PCA requirements as of both December 31, 2018 and 2017.

Regulatory restrictions exist that limit the ability of the Banks to transfer funds to our BHC. As of December 31, 2018, funds available for dividend payments from COBNA and CONA were $3.2 billion and $2.2 billion, respectively. Applicable provisions that may be contained in our borrowing agreements or the borrowing agreements of our subsidiaries may limit our subsidiaries’ ability to pay dividends to us or our ability to pay dividends to our stockholders.

The Federal Reserve requires depository institutions to maintain certain cash reserves against specified deposit liabilities. As of December 31, 2018 and 2017, our reserve requirements totaled $1.9 billion and $2.2 billion, respectively.

- Definition

The entire disclosure for banks, savings institutions, and credit unions, for regulatory capital requirements imposed by the Federal Reserve System (FRB), the Federal Deposit Insurance Corporation (FDIC), the Office of Thrift Supervision (OTS) or for any state imposed capital requirements, as applicable. The disclosure may include (1) a description of regulatory capital requirements (a) for capital adequacy purposes and (b) established by the prompt corrective action provisions of Section 38 of the Federal Depository Insurance Act; (2) the actual or possible material effects of noncompliance with such requirements; (3) whether the entity is in compliance with the regulatory capital requirements including (a) required and actual ratios and amounts of Tier 1 leverage, Tier 1 risk-based, and total risk-based capital, tangible capital (for savings institutions), and Tier 3 capital for market risk (for certain banks and bank holding companies), (b) factors that may significantly affect capital adequacy; (4) the prompt corrective action category in which the entity was classified as of its most recent notification; (5) whether management believes any conditions or events since notification have changed the entity's category. Also may include additional information that might be disclosed in situations where substantial doubt about the entity's ability to continue as a going concern for a reasonable period of time.

+ References

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+ Details

Earnings Per Common Share

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Common Share

NOTE 13—EARNINGS PER COMMON SHARE

The following table sets forth the computation of basic and diluted earnings per common share. Dividends and undistributed earnings allocated to participating securities represent the undistributed earnings allocated to participating securities using the two-class method permitted by U.S. GAAP for computing earnings per share.

Table 13.1: Computation of Basic and Diluted Earnings per Common Share



	Year Ended December 31,
(Dollars and shares in millions, except per share data)	2018			2017			2016
Income from continuing operations, net of tax	$	6,025		$	2,117		$	3,770
Loss from discontinued operations, net of tax	(10		)	(135		)	(19		)
Net income	6,015			1,982			3,751
Dividends and undistributed earnings allocated to participating securities	(40		)	(13		)	(24		)
Preferred stock dividends	(265		)	(265		)	(214		)
Net income available to common stockholders	$	5,710		$	1,704		$	3,513

Total weighted-average basic shares outstanding	479.9			484.2			504.9
Effect of dilutive securities:
Stock options	1.6			2.5			2.0
Other contingently issuable shares	1.1			1.2			1.3
Warrants⁽¹⁾	0.5			0.7			1.6
Total effect of dilutive securities	3.2			4.4			4.9
Total weighted-average diluted shares outstanding	483.1			488.6			509.8
Basic earnings per common share:
Net income from continuing operations	$	11.92		$	3.80		$	7.00
Loss from discontinued operations	(0.02		)	(0.28		)	(0.04		)
Net income per basic common share	$	11.90		$	3.52		$	6.96
Diluted earnings per common share:⁽²⁾
Net income from continuing operations	$	11.84		$	3.76		$	6.93
Loss from discontinued operations	(0.02		)	(0.27		)	(0.04		)
Net income per diluted common share	$	11.82		$	3.49		$	6.89

__________


⁽¹⁾	Represents warrants issued as part of the U.S. Department of Treasury’s Troubled Assets Relief Program which had all been exercised or expired on November 14, 2018. There were 1.3 million and 4.1 million warrants to purchase common stock outstanding as of December 31, 2017 and 2016, respectively.

⁽²⁾

Excluded from the computation of diluted earnings per share were 56 thousand shares related to options with an exercise price of $86.34, 233 thousand shares related to options with exercise prices ranging from $82.08 to $86.34 and 1.7 million shares related to options with exercise prices ranging from $63.73 to $88.81 for the years ended December 31, 2018, 2017 and 2016, respectively, because their inclusion would be anti-dilutive.

Stock-Based Compensation Plans

12 Months Ended

Dec. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Plans

NOTE 14—STOCK-BASED COMPENSATION PLANS

Stock Plans

We have one active stock-based compensation plan available for the issuance of shares to employees, directors and third-party service providers (if applicable). As of December 31, 2018, under the Amended and Restated 2004 Stock Incentive plan (“2004 Plan”), we are authorized to issue 55 million common shares in various forms, including incentive stock options, nonstatutory stock options, stock appreciation rights, restricted stock awards (“RSAs”), share-settled restricted stock units (“RSUs”), performance share awards (“PSAs”) and performance share units (“PSUs”). Of this amount, approximately 13 million shares remain available for future issuance as of December 31, 2018. The 2004 Plan permits the use of newly issued shares or treasury shares upon the settlement of options and stock-based incentive awards, and we generally settle by issuing new shares.

We also issue cash-settled restricted stock units (and in the past issued cash equity units). These cash-settled units are not counted against the common shares authorized for issuance or available for issuance under the 2004 Plan.

Total stock-based compensation expense recognized during 2018, 2017 and 2016 was $170 million, $244 million and $239 million, respectively. The total income tax benefit for stock-based compensation recognized during 2018, 2017 and 2016 was $34 million, $92 million and $89 million, respectively.

Stock Options

Stock options have a maximum contractual term of ten years. Generally, the exercise price of stock options will equal the fair market value of our common stock on the date of grant. Option vesting is determined at the time of grant and may be subject to the achievement of any applicable performance conditions. Options generally become exercisable over three years beginning on the first anniversary of the date of grant; however, some option grants cliff-vest on or shortly after the first or third anniversary of the grant date.

The following table presents a summary of 2018 activity for stock options and the balance of stock options exercisable as of December 31, 2018.

Table 14.1: Summary of Stock Options Activity



(Shares in thousands, and intrinsic value in millions)	Shares Subject to Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding as of January 1, 2018	4,766		$	48.50
Granted	0		0.00
Exercised	(1,310	)	28.65
Forfeited	0		0.00
Expired	0		0.00
Outstanding as of December 31, 2018	3,456		$	56.03	3.88 years	$	71
Exercisable as of December 31, 2018	3,043		$	53.36	3.37 years	$	68

There were no stock options granted in 2018 and the weighted-average fair value of stock options granted during 2017 and 2016 was $21.48 and $16.36, respectively. The total intrinsic value of stock options exercised during 2018, 2017 and 2016 was $94 million, $92 million and $31 million, respectively.

Effective January 1, 2017, we adopted the new accounting guidance related to employee share-based payments. As a result of the adoption of this new guidance, all excess tax benefits on share-based payment awards are recognized within income tax expense in the consolidated statements of income. The following table presents the cash received from the exercise of stock options under all stock-based incentive arrangements, and the actual income tax benefit for the tax deductions from the exercise of the stock options.

Table 14.2: Stock Options Cash Flow Impact



	Year Ended December 31,
(Dollars in millions)	2018		2017		2016
Cash received for options exercised	$	38	$	122	$	135
Tax benefit	22		34		12

Compensation expense for stock options is based on the grant date fair value, which is estimated using the Black-Scholes option-pricing model. This option pricing model requires the use of numerous assumptions, many of which are subjective. Certain stock options have discretionary vesting conditions and are remeasured at fair value each reporting period.

The following table presents the weighted-average assumptions used to value stock options granted during 2017 and 2016, and there were no stock options granted in 2018. Dividend yield represents the expected dividend rate over the life of the option, and expected option lives are calculated based on historical activities.

Table 14.3: Assumptions Used to Value Stock Options Granted



	Year Ended December 31,
	2017		2016
Dividend yield	1.85	%	2.07	%
Volatility⁽¹⁾	27.00		30.00
Risk-free interest rate (U.S. Treasury yield curve)	2.30		1.64
Expected option lives	6.6 years		6.6 years

__________


⁽¹⁾	The volatility assumption was based on the implied volatility of exchange-traded options and the historical volatility of common stock.

Restricted Stock Awards and Units

RSAs and RSUs represent share-settled awards that do not contain performance conditions and are granted to certain employees at no cost to the recipient. RSAs and RSUs generally vest over three years from the date of grant; however, some RSAs and RSUs cliff vest on or shortly after the first or third anniversary of the grant date. These awards and units are subject to forfeiture until certain restrictions have lapsed, including continued employment for a specified period of time. A recipient of an RSA is entitled to voting rights and is generally entitled to dividends on the common stock. A recipient of an RSU is entitled to receive a share of common stock after the applicable restrictions lapse. Additionally, a recipient of an RSU is generally entitled to receive cash payments or additional shares of common stock equivalent to any dividends paid on the underlying common stock during the period the RSU is outstanding, but is not entitled to voting rights.

Generally, the value of RSAs and RSUs will equal the fair value of our common stock on the date of grant and the expense is recognized over the vesting period.

The following table presents a summary of 2018 activity for RSAs and RSUs.

Table 14.4: Summary of Restricted Stock Awards and Units



	Restricted Stock Awards				Restricted Stock Units
(Shares/units in thousands)	Shares		Weighted-Average Grant Date Fair Value per Share		Units		Weighted-Average Grant Date Fair Value per Unit
Unvested as of January 1, 2018	16		$	56.39	3,379		$	74.06
Granted	0		N/A		1,547		100.73
Vested	(16	)	56.39		(1,426	)	75.62
Forfeited	0		0.00		(155	)	88.16
Unvested as of December 31, 2018	0		$	0.00	3,345		$	85.01

There were no RSAs granted in 2018, and the total fair value of RSAs that vested during 2018, 2017 and 2016 was $2 million, $3 million and $21 million, respectively. There was no unrecognized compensation expense related to unvested RSAs as of December 31, 2018.

The weighted-average grant date fair value of RSUs in 2018, 2017 and 2016 was $100.73, $86.20 and $65.19, respectively. The total fair value of RSUs that vested during 2018, 2017 and 2016 was $139 million, $110 million and $42 million, respectively. The unrecognized compensation expense related to unvested RSUs as of December 31, 2018 was $139 million, which is expected to be amortized over a weighted-average period of approximately 1.8 years.

Performance Share Awards and Units

PSAs and PSUs represent share-settled awards that contain performance conditions and are granted to certain employees at no cost to the recipient. PSAs and PSUs generally vest over three years from the date of grant; however, some PSUs cliff vest on or shortly after the third anniversary of the grant date. Generally, the value of PSAs and PSUs will equal the fair market value of our common stock on the date of grant and the expense is recognized over the vesting period. Certain PSAs and PSUs have discretionary vesting conditions and are remeasured at fair value each reporting period. A recipient of a PSA is entitled to voting rights and is generally entitled to dividends on the common stock. A recipient of a PSU is entitled to receive a share of common stock after the applicable restrictions lapse. Additionally, a recipient of a PSU is generally entitled to receive cash payments or additional shares of common stock equivalent to any dividends paid on the underlying common stock during the period the PSU is outstanding, but is not entitled to voting rights.

The number of PSUs that step vest over three years can be reduced by 50% or 100% depending on whether specific performance goals are met during the vesting period. The number of three-year cliff vesting PSUs that will ultimately vest is contingent upon meeting specific performance goals over a three-year period. These PSUs also include an opportunity to receive from 0% to 150% of the target number of common shares.

There were no unvested PSAs at the beginning of the year, and no new PSAs were granted during the year. As such, the following table presents a summary of 2018 activity for PSUs only.

Table 14.5: Summary of Performance Share Units



	Performance Share Units
(Shares/units in thousands)	Units		Weighted-Average Grant Date Fair Value per Unit
Unvested as of January 1, 2018	1,918		$	75.38
Granted⁽¹⁾	878		100.65
Vested⁽¹⁾	(932	)	74.80
Forfeited	(60	)	90.35
Unvested as of December 31, 2018	1,804		$	87.48

__________


⁽¹⁾	Granted and vested include adjustments for achievement of specific performance goals for performance share units granted in prior periods.

The weighted-average grant date fair value of PSUs granted during 2018, 2017 and 2016 was $100.65, $82.48 and $62.89, respectively. The total fair value of PSUs that vested was $92 million, $90 million and $54 million in 2018, 2017 and 2016, respectively. The unrecognized compensation expense related to unvested PSUs as of December 31, 2018 was $31 million, which is expected to be amortized over a weighted-average period of approximately 11 months.

Cash-Settled Units

Cash-settled units are recorded as liabilities and measured at fair value on a quarterly basis. Cash-settled units are settled with a cash payment for each unit vested that is equal to the average fair market value of our common stock for the 15 trading days preceding the vesting date. Cash-settled units generally vest over three years beginning on the first anniversary of the date of grant; however, some cash-settled units cliff vest shortly before the one year anniversary of the grant date or on or shortly after the third anniversary of the grant date. Cash-settled units vesting during 2018, 2017 and 2016 resulted in cash payments to associates of $39 million, $42 million and $36 million, respectively. There was no unrecognized compensation cost for unvested cash-settled units as of December 31, 2018.

Associate Stock Purchase Plan

We maintain an Associate Stock Purchase Plan (“Purchase Plan”), which is a compensatory plan under the accounting guidance for stock-based compensation. We recognized $23 million, $23 million and $18 million in compensation expense for 2018, 2017 and 2016, respectively, under the Purchase Plan.

Under the Purchase Plan, eligible associates are permitted to contribute between 1% and 15% of their base compensation through payroll deductions and receive a 15% Company match on the contribution. Both the associates’ contributions and the Company match are applied to the purchase of our unissued common or treasury stock at the current market price. Shares may also be acquired on the open market. Dividends for active participants are automatically reinvested in additional shares of common stock. Of the 33 million total authorized shares as of December 31, 2018, 16 million shares were available for issuance.

Dividend Reinvestment and Stock Purchase Plan

We maintain a Dividend Reinvestment and Stock Purchase Plan (“DRP”), which allows participating stockholders to purchase additional shares of our common stock through automatic reinvestment of dividends or optional cash investments. Of the 8 million total authorized shares as of December 31, 2018, 7 million shares were available for issuance under the DRP.

Employee Benefit Plans

12 Months Ended

Dec. 31, 2018

Retirement Benefits [Abstract]

Employee Benefit Plans

NOTE 15—EMPLOYEE BENEFIT PLANS

Defined Contribution Plan

We sponsor a contributory Associate Savings Plan (the “Plan”) in which all full-time and part-time associates over the age of 18 are eligible to participate. We make non-elective contributions to each eligible associates’ account and match a portion of associate contributions. We also sponsor a voluntary non-qualified deferred compensation plan in which select groups of employees are eligible to participate. We make contributions to this plan based on participants’ deferral of salary, bonuses and other eligible pay. In addition, we match participants’ excess compensation (compensation over the Internal Revenue Service compensation limit) less deferrals. We contributed a total of $291 million, $282 million and $252 million to these plans during the years ended December 31, 2018, 2017 and 2016, respectively.

Defined Benefit Pension and Other Postretirement Benefit Plans

We sponsor a frozen qualified defined benefit pension plan and several non-qualified defined benefit pension plans. We also sponsor a plan that provides other postretirement benefits, including medical and life insurance coverage.

Our pension plans and the other postretirement benefit plan are valued using December 31, 2018 and 2017 measurement dates. Our policy is to amortize prior service amounts on a straight-line basis over the average remaining years of service to full eligibility for benefits of active plan participants.

The following table sets forth, on an aggregated basis, changes in the benefit obligation and plan assets, the funded status and how the funded status is recognized on our consolidated balance sheets.

Table 15.1: Changes in Benefit Obligation and Plan Assets



	Defined Pension Benefits						Other Postretirement Benefits
(Dollars in millions)	2018			2017			2018			2017
Change in benefit obligation:
Accumulated benefit obligation as of January 1,	$	178		$	180		$	35		$	39
Service cost	1			2			0			0
Interest cost	6			7			1			2
Benefits paid	(15		)	(18		)	(2		)	(3		)
Net actuarial loss (gain)	(13		)	7			(5		)	(3		)
Accumulated benefit obligation as of December 31,	$	157		$	178		$	29		$	35
Change in plan assets:
Fair value of plan assets as of January 1,	$	246		$	226		$	6		$	6
Actual return on plan assets	(14		)	37			0			1
Employer contributions	1			1			2			2
Benefits paid	(15		)	(18		)	(2		)	(3		)
Fair value of plan assets as of December 31,	$	218		$	246		$	6		$	6
Over (under) funded status as of December 31,	$	61		$	68		$	(23	)	$	(29	)



	Defined Pension Benefits						Other Postretirement Benefits
(Dollars in millions)	2018			2017			2018			2017
Balance sheet presentation as of December 31,
Other assets	$	71		$	80		$	0		$	0
Other liabilities	(10		)	(12		)	(23		)	(29		)
Net amount recognized as of December 31,	$	61		$	68		$	(23	)	$	(29	)

The following table presents the components of net periodic benefit costs and other amounts recognized in other comprehensive income.

Table 15.2: Components of Net Periodic Benefit Cost



	Year Ended December 31,
	2018			2017			2016			2018			2017			2016
(Dollars in millions)	Defined Pension Benefits									Other Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	1		$	2		$	2		$	0		$	0		$	0
Interest cost	6			7			7			1			2			2
Expected return on plan assets	(15		)	(14		)	(14		)	0			0			0
Amortization of transition obligation, prior service credit and net actuarial loss (gain)	1			1			1			(6		)	(6		)	(6		)
Net periodic benefit gain	$	(7	)	$	(4	)	$	(4	)	$	(5	)	$	(4	)	$	(4	)

Changes recognized in other comprehensive income, pretax:
Net actuarial gain (loss)	$	(17	)	$	16		$	4		$	5		$	4		$	5
Reclassification adjustments for amounts recognized in net periodic benefit cost	1			1			1			(6		)	(6		)	(6		)
Total gain (loss) recognized in other comprehensive income	$	(16	)	$	17		$	5		$	(1	)	$	(2	)	$	(1	)

Pre-tax amounts recognized in AOCI that have not yet been recognized as a component of net periodic benefit cost consist of net actuarial loss of $64 million and $49 million for our defined benefit pension plans as of December 31, 2018 and 2017, respectively, and net actuarial gain of $9 million and $10 million for our other postretirement benefit plan as of December 31, 2018 and 2017, respectively. There was no meaningful prior service cost recognized in AOCI.

The following table presents weighted-average assumptions used in the accounting for the plans:

Table 15.3: Assumptions Used in the Accounting for the Plans



	December 31,
	2018		2017		2016		2018		2017		2016
	Defined Pension Benefits						Other Postretirement Benefits
Assumptions for benefit obligations at measurement date:
Discount rate	4.2	%	3.5	%	4.0	%	4.2	%	3.5	%	4.0	%
Assumptions for periodic benefit cost for the year ended:
Discount rate	3.5		4.0		4.2		3.5		4.0		4.2
Expected long-term rate of return on plan assets	6.5		6.5		6.5		6.5		6.5		6.5
Assumptions for year-end valuations:
Health care cost trend rate assumed for next year:
Pre-age 65	N/A		N/A		N/A		6.2		6.5		6.7
Post-age 65	N/A		N/A		N/A		6.2		6.5		6.8
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	N/A		N/A		N/A		4.5		4.5		4.5
Year the rate reaches the ultimate trend rate	N/A		N/A		N/A		2037		2037		2037

To develop the expected long-term rate of return on plan assets assumption, consideration was given to the current level of expected returns on risk-free investments (primarily government bonds), the historical level of the risk premium associated with the other asset classes in which the portfolio is invested and the expectations for future returns of each asset class. The expected return for each asset class was then weighted based on the target asset allocation to develop the expected long-term rate of return on the plan assets assumption for the portfolio.

Plan Assets and Fair Value Measurement

Plan assets are invested using a total return investment approach whereby a mix of equity securities and debt securities are used to preserve asset values, diversify risk and enhance our ability to achieve our benchmark for long-term investment return. Investment strategies and asset allocations are based on careful consideration of plan liabilities, the plan’s funded status and our financial condition. Investment performance and asset allocation are measured and monitored on a quarterly basis.

Plan assets are managed in a balanced portfolio comprised of three major components: domestic equity, international equity and domestic fixed income investments. The expected role of plan equity investments is to maximize the long-term real growth of fund assets, while the role of fixed income investments is to generate current income, provide for more stable periodic returns and provide some protection against a prolonged decline in the market value of fund equity investments.

The investment guidelines provide the following asset allocation targets and ranges: domestic equity target of 39% and allowable range of 34% to 44%, international equity target of 16% and allowable range of 11% to 21%, fixed income investments target of 45% and allowable range of 35% to 55%.

As of December 31, 2018, substantially all of our plan assets of $224 million were invested in common collective trusts, which primarily consist of government securities, corporate and municipal bonds, and domestic and international equity securities. As of December 31, 2017, our plan assets totaled $252 million, of which approximately 60% were invested in common collective trusts and the remaining 40% were primarily invested in corporate bonds and government securities. The common collective trusts are measured at net asset value per share, or its equivalent, as a practical expedient and therefore are not classified in the fair value hierarchy, and the remaining investments were classified as Level 2 in the fair value hierarchy. For information on fair value measurements, including descriptions of Level 1, 2 and 3 of the fair value hierarchy and the valuation methods we utilize, see “Note 17—Fair Value Measurement.”

Expected Future Benefit Payments

As of December 31, 2018, the benefits expected to be paid in the next ten years totaled $103 million for our defined pension benefit plans and $20 million for our other postretirement benefit plan, respectively.

Income Taxes

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Income Taxes

NOTE 16—INCOME TAXES

In the fourth quarter of 2017, we recorded charges of $1.8 billion associated with the impacts of the Tax Act, and there were no material adjustments made to this amount during the measurement period which ended in December 2018. In the fourth quarter of 2018, we recognized a tax benefit of $284 million as a result of an approval from the Internal Revenue Service (IRS) related to a tax methodology change on rewards costs.

The following table presents significant components of the provision for income taxes attributable to continuing operations:

Table 16.1: Significant Components of the Provision for Income Taxes Attributable to Continuing Operations



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Current income tax provision:
Federal taxes	$	210		$	1,585		$	2,087
State taxes	234			223			209
International taxes	135			133			104
Total current provision	$	579		$	1,941		$	2,400
Deferred income tax provision (benefit):
Federal taxes	$	620		$	1,509		$	(621	)
State taxes	115			(69		)	(63		)
International taxes	(21		)	(6		)	(2		)
Total deferred provision (benefit)	714			1,434			(686		)
Total income tax provision	$	1,293		$	3,375		$	1,714

The international income tax provision is related to pre-tax earnings from foreign operations of approximately $382 million, $410 million and $287 million in 2018, 2017 and 2016, respectively.

Total income tax provision does not reflect the tax effects of items that are included in accumulated other comprehensive income, which include a tax provision of $15 million, tax benefit of $134 million and tax provision of $24 million in 2018, 2017 and 2016, respectively. See “Note 11—Stockholders’ Equity” for additional information.

The following table presents the reconciliation of the U.S. federal statutory income tax rate to the effective income tax rate applicable to income from continuing operations for the years ended December 31, 2018, 2017 and 2016:

Table 16.2: Effective Income Tax Rate



	Year Ended December 31,
	2018		2017		2016
Income tax at U.S. federal statutory tax rate	21.0	%	35.0	%	35.0	%
Affordable housing, new markets and other tax credits	(4.0	)	(5.8	)	(4.9	)
IRS method changes	(3.9	)	0.0		0.0
Tax-exempt interest and other nontaxable income	(0.7	)	(1.5	)	(1.4	)
Impacts of the Tax Act	(0.3	)	32.2		N/A
State taxes, net of federal benefit	3.2		2.2		1.9
Non-deductible expenses	2.2		0.7		0.9
Other, net	0.2		(1.3	)	(0.2	)
Effective income tax rate	17.7	%	61.5	%	31.3	%

The following table presents significant components of our deferred tax assets and liabilities as of December 31, 2018 and 2017. The valuation allowance below represents the adjustment of certain state deferred tax assets and net operating loss carryforwards to the amount we have determined is more likely than not to be realized.

Table 16.3: Significant Components of Deferred Tax Assets and Liabilities



(Dollars in millions)	December 31, 2018			December 31, 2017
Deferred tax assets:
Allowance for loan and lease losses	$	1,700		$	1,768
Rewards programs	500			936
Security and loan valuations	288			424
Net operating loss and tax credit carryforwards	271			244
Goodwill and intangibles	187			201
Compensation and employee benefits	167			208
Partnership investments	162			130
Net unrealized losses on derivatives	135			104
Unearned income	114			130
Other assets	152			156
Subtotal	3,676			4,301
Valuation allowance	(245		)	(226		)
Total deferred tax assets	3,431			4,075
Deferred tax liabilities:
Original issue discount	720			703
Fixed assets and leases	204			168
Loan fees and expenses	75			68
Mortgage servicing rights	48			57
Other liabilities	239			215
Total deferred tax liabilities	1,286			1,211
Net deferred tax assets	$	2,145		$	2,864

Our federal net operating loss carryforwards were less than $1 million and $15 million as of December 31, 2018 and 2017, respectively. These operating loss carryforwards were attributable to prior acquisitions and will expire from 2019 to 2035. Under

IRS rules, our ability to utilize these losses against future income is limited. The net tax value of our state net operating loss carryforwards was $253 million and $241 million as of December 31, 2018 and 2017, respectively, and they will expire from 2019 to 2038. Our foreign tax credit carryforward was $19 million as of December 31, 2018 and will expire in 2028.

We recognize accrued interest and penalties related to income taxes as a component of income tax expense. We recognized $6 million and $5 million of expense in 2018 and 2017, respectively, and $5 million of benefit in 2016.

The following table presents the accrued balance of tax, interest and penalties related to unrecognized tax benefits:

Table 16.4: Reconciliation of the Change in Unrecognized Tax Benefits



(Dollars in millions)	Gross Unrecognized Tax Benefits			Accrued Interest and Penalties			Gross Tax, Interest and Penalties
Balance as of January 1, 2016	$	130		$	33		$	163
Additions for tax positions related to prior years	0			6			6
Reductions for tax positions related to prior years due to IRS and other settlements	(45		)	(15		)	(60		)
Balance as of December 31, 2016	85			24			109
Additions for tax positions related to prior years	5			7			12
Reductions for tax positions related to prior years due to IRS and other settlements	(4		)	(2		)	(6		)
Balance as of December 31, 2017	86			29			115
Additions for tax positions related to the current year	28			0			28
Additions for tax positions related to prior years	402			25			427
Reductions for tax positions related to prior years due to IRS and other settlements	(76		)	(19		)	(95		)
Balance as of December 31, 2018	$	440		$	35		$	475
Portion of balance at December 31, 2018 that, if recognized, would impact the effective income tax rate	$	181		$	28		$	209

We are subject to examination by the IRS and other tax authorities in certain countries and states in which we operate. The tax years subject to examination vary by jurisdiction. During 2018, we continued our participation in the IRS Compliance Assurance Process (“CAP”) for our 2017 federal income tax return. On that filed return, we requested a change in method of accounting with respect to the proper timing for the recognition of the costs associated with our reward programs for 2017 and prior years. This method change was granted by the IRS during the fourth quarter of 2018, resulting in the withdrawal of our pending refund claims with respect to this issue for the 2012 and 2013 tax years and resolving this issue up through the 2017 tax year. As in prior years, the examination of our 2017 federal income tax return was substantially completed prior to the filing of the return, with the IRS reserving a limited number of issues for further post-filing review. We continued our participation in CAP for the 2018 tax year, with a similar expectation that the IRS examination will be substantially completed prior to the filing of our 2018 federal income tax return in 2019. We have been accepted into CAP for 2019. During 2018, the Company also entered into settlement agreements with various states to resolve outstanding economic nexus issues for prior tax years.

It is reasonably possible that further adjustments to our unrecognized tax benefits may be made within 12 months of the reporting date as a result of future judicial or regulatory interpretations of existing tax laws. At this time, an estimate of the potential change to the amount of unrecognized tax benefits cannot be made.

The Tax Act requires that all unremitted earnings of our subsidiaries operating outside the U.S. are deemed to be repatriated as of December 31, 2017. As such, a liability of $111 million was paid with our 2017 federal tax return for the deemed repatriation of $1.5 billion of undistributed foreign earnings. No actual distributions of these earnings have been made as of December 31, 2018. Upon repatriation of these earnings, there would be no additional U.S. federal income taxes. In accordance with the accounting for income taxes in special areas, these earnings are considered by management to be invested indefinitely, except for the earnings of our Philippines subsidiary from which we expect to make distributions in 2019.

As of December 31, 2018, U.S. income taxes of $69 million have not been provided for approximately $287 million of previously acquired thrift bad debt reserves created for tax purposes as of December 31, 1987. These amounts, acquired as a result of previous mergers and acquisitions, are subject to recapture in the unlikely event that CONA, as the successor to the merged and acquired entities, makes distributions in excess of earnings and profits, redeems its stock or liquidates.

Fair Value Measurement

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurement

NOTE 17—FAIR VALUE MEASUREMENT

Fair value, also referred to as an exit price, is defined as the price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date. The fair value accounting guidance provides a three-level fair value hierarchy for classifying financial instruments. This hierarchy is based on the markets in which the assets or liabilities trade and whether the inputs to the valuation techniques used to measure fair value are observable or unobservable. The fair value measurement of a financial asset or liability is assigned a level based on the lowest level of any input that is significant to the fair value measurement in its entirety. The three levels of the fair value hierarchy are described below:



Level 1:		Valuation is based on quoted prices (unadjusted) in active markets for identical assets or liabilities.
Level 2:		Valuation is based on observable market-based inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Level 3:		Valuation is generated from techniques that use significant assumptions not observable in the market. Valuation techniques include pricing models, discounted cash flow methodologies or similar techniques.

The accounting guidance for fair value measurements requires that we maximize the use of observable inputs and minimize the use of unobservable inputs in determining fair value. The accounting guidance provides for the irrevocable option to elect, on a contract-by-contract basis, to measure certain financial assets and liabilities at fair value at inception of the contract and record any subsequent changes in fair value in earnings. We have not made any material fair value option elections as of or for the periods disclosed herein.

Fair Value Governance and Control

We have a governance framework and a number of key controls that are intended to ensure that our fair value measurements are appropriate and reliable. Our governance framework provides for independent oversight and segregation of duties. Our control processes include review and approval of new transaction types, price verification, and review of valuation judgments, methods, models, process controls and results.

Groups independent of our trading and investing functions participate in the review and validation process. Tasks performed by these groups include periodic verification of fair value measurements to determine if assigned fair values are reasonable, including comparing prices from vendor pricing services to other available market information.

Our Fair Value Committee (“FVC”), which includes representation from business areas, Risk Management and Finance, provides guidance and oversight to ensure an appropriate valuation control environment. The FVC regularly reviews and approves our fair valuations to ensure that our valuation practices are consistent with industry standards and adhere to regulatory and accounting guidance.

We have a model policy, established by an independent Model Risk Office, which governs the validation of models and related supporting documentation to ensure the appropriate use of models for pricing and fair value measurements. The Model Risk Office validates all models and provides ongoing monitoring of their performance.

The fair value governance process is set up in a manner that allows the Chairperson of the FVC to escalate valuation disputes that cannot be resolved by the FVC to a more senior committee called the Valuations Advisory Committee (“VAC”) for resolution. The VAC is chaired by the Chief Financial Officer and includes other members of senior management. The VAC convenes to review escalated valuation disputes.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

In 2018, we adopted ASU No. 2016-01, Financial Instrument-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities and in the fourth quarter of 2018, we early adopted ASU No. 2018-13 Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. The disclosures below reflect the adoption changes.

The following describes the valuation techniques used in estimating the fair value of our financial assets and liabilities recorded at fair value on a recurring basis.

Investment Securities

Quoted prices in active markets are used to measure the fair value of U.S. Treasury securities. For the majority of securities in other investment categories, we utilize multiple vendor pricing services to obtain fair value measurements. A waterfall of pricing vendors is determined in order of preference. The determination of the top-ranked pricing vendor is made on an annual basis as part of an assessment of the performance of pricing services provided by the vendors. A pricing service may be considered as the preferred or primary pricing provider depending on how closely aligned its prices are to other vendor prices, and how consistent the prices are with other available market information. The price of each security is confirmed by comparing with other vendor prices before it is finalized.

RMBS and CMBS securities are generally classified as Level 2 or 3. When significant assumptions are not consistently observable, fair values are derived using the best available data. Such data may include quotes provided by dealers, valuation from external pricing services, independent pricing models, or other model-based valuation techniques, for example, calculation of the present values of future cash flows incorporating assumptions such as benchmark yields, spreads, prepayment speeds, credit ratings and losses. Generally, the pricing services utilize observable market data to the extent available. Pricing models may be used, which can vary by asset class and may also incorporate available trade, bid and other market information. Across asset classes, information such as trader/dealer inputs, credit spreads, forward curves and prepayment speeds are used to help determine appropriate valuations. Because many fixed income securities do not trade on a daily basis, the pricing models may apply available information through processes such as benchmarking curves, grouping securities based on their characteristics and using matrix pricing to prepare valuations. In addition, model processes are used by the pricing services to develop prepayment assumptions.

We validate the pricing obtained from the primary pricing providers through comparison of pricing to additional sources, including other pricing services, dealer pricing indications in transaction results and other internal sources. Pricing variances among different pricing sources are analyzed. Additionally, on an on-going basis, we request more detailed information from the valuation vendors to understand the pricing methodology and assumptions used to value the securities.

Derivative Assets and Liabilities

We use both exchange-traded and OTC derivatives to manage our interest rate and foreign currency risk exposures. When quoted market prices are available and used to value our exchange-traded derivatives, we classify them as Level 1. However, predominantly all of our derivatives do not have readily available quoted market prices. Therefore, we value most of our derivatives using vendor-based valuation techniques. We primarily rely on market observable inputs for our models, such as interest rate yield curves, credit curves, option volatility and currency rates. These inputs can vary depending on the type of derivatives and nature of the underlying rate, price or index upon which the value of the derivative is based. We typically classify derivatives as Level 2 when significant inputs can be observed in a liquid market and the model itself does not require significant judgment. When instruments are traded in less liquid markets and significant inputs are unobservable, such as interest rate swaps whose remaining terms do not correlate with market observable interest rate yield curves, such derivatives are classified as Level 3. The impact of credit risk valuation adjustments are considered when measuring the fair value of derivative contracts in order to reflect the credit quality of the counterparty and our own credit quality. Official internal pricing is compared against additional pricing sources such as external valuation agents and other internal sources. Pricing variances among different pricing sources are analyzed and validated. These derivatives are included in other assets or other liabilities on the consolidated balance sheets.

Retained Interests in Securitizations

We have retained interests in various mortgage securitizations from previous acquisitions. Our retained interests primarily include amounts previously funded under letters of credit to cover losses on certain manufactured housing securitizations, interest-only bonds issued by a trust and negative amortization bonds. We record these retained interests at fair value using market indications and valuation models to calculate the present value of future cash flows. The models incorporate various assumptions that market participants use in estimating future cash flows including constant prepayment rate, discount rate, default rate and loss severity. Due to the use of significant unobservable inputs, retained interests in securitizations are classified as Level 3 under the fair value hierarchy.

Deferred Compensation Plan Assets

We offer a voluntary non-qualified deferred compensation plan to eligible associates. In addition to participant deferrals, we make contributions to the plan. Participants invest these contributions in a variety of publicly traded mutual funds. The plan assets, which consist of publicly traded mutual funds, are classified as Level 1.

The determination of the leveling of financial instruments in the fair value hierarchy is performed at the end of each reporting period. We consider all available information, including observable market data, indications of market liquidity and orderliness, and our understanding of the valuation techniques and significant inputs. Based upon the specific facts and circumstances of each instrument or instrument category, judgments are made regarding the significance of the observable or unobservable inputs to the instruments’ fair value measurement in its entirety. If unobservable inputs are considered significant, the instrument is classified as Level 3. The process for determining fair value using unobservable inputs is generally more subjective and involves a high degree of management judgment and assumptions.

The following table displays our assets and liabilities measured on our consolidated balance sheets at fair value on a recurring basis as of December 31, 2018 and 2017.

Table 17.1: Assets and Liabilities Measured at Fair Value on a Recurring Basis



	December 31, 2018
	Fair Value Measurements Using						Netting Adjustments⁽¹⁾
(Dollars in millions)	Level 1		Level 2		Level 3		Netting Adjustments⁽¹⁾			Total
Assets:
Securities available for sale:
U.S. Treasury securities	$	6,144	$	0	$	0	—			$	6,144
RMBS	0		33,212		433		—			33,645
CMBS	0		4,729		10		—			4,739
Other securities	219		1,403		0		—			1,622
Total securities available for sale	6,363		39,344		443		—			46,150
Other assets:
Derivative assets⁽²⁾	0		1,501		38		$	(1,079	)	460
Other⁽³⁾	265		0		158		—			423
Total assets	$	6,628	$	40,845	$	639	$	(1,079	)	$	47,033
Liabilities:
Other liabilities:
Derivative liabilities⁽²⁾	$	0	$	1,153	$	48	$	(287	)	$	914
Total liabilities	$	0	$	1,153	$	48	$	(287	)	$	914



	December 31, 2017
	Fair Value Measurements Using						Netting Adjustments⁽¹⁾
(Dollars in millions)	Level 1		Level 2		Level 3		Netting Adjustments⁽¹⁾			Total
Assets:
Securities available for sale:
U.S. Treasury securities	$	5,171	$	0	$	0	—			$	5,171
RMBS	0		27,178		614		—			27,792
CMBS	0		3,161		14		—			3,175
Other securities	320		1,192		5		—			1,517
Total securities available for sale	5,491		31,531		633		—			37,655
Other assets:
Derivative assets⁽²⁾	1		1,002		37		$	(275	)	765
Other⁽³⁾	281		0		264		—			545
Total assets	$	5,773	$	32,533	$	934	$	(275	)	$	38,965
Liabilities:
Other liabilities:
Derivative liabilities⁽²⁾	$	1	$	1,243	$	24	$	(662	)	$	606
Total liabilities	$	1	$	1,243	$	24	$	(662	)	$	606

__________


⁽¹⁾	Represents balance sheet netting of derivative assets and liabilities, and related payables and receivables for cash collateral held or placed with the same counterparty. See “Note 10—Derivative Instruments and Hedging Activities” for additional information.

⁽²⁾

Does not reflect $2 million recognized as a net valuation allowance on derivative assets and liabilities for non-performance risk as of both December 31, 2018 and 2017. Non-performance risk is included in derivative assets and liabilities, which are part of other assets and liabilities on the consolidated balance sheets, and is offset through non-interest income in the consolidated statements of income.


⁽³⁾	As of December 31, 2018, other includes retained interests in securitizations of $158 million, deferred compensation plan assets of $264 million and equity securities of $1 million. As of December 31, 2017, other includes consumer MSRs of $92 million, retained interests in securitizations of $172 million and deferred compensation plan assets of $281 million.

Level 3 Recurring Fair Value Rollforward

The table below presents a reconciliation for all assets and liabilities measured and recognized at fair value on a recurring basis using significant unobservable inputs (Level 3) for the years ended December 31, 2018, 2017 and 2016. Generally, transfers into Level 3 were primarily driven by the usage of unobservable assumptions in the pricing of these financial instruments as evidenced by wider pricing variations among pricing vendors and transfers out of Level 3 were primarily driven by the usage of assumptions corroborated by market observable information as evidenced by tighter pricing among multiple pricing sources.

Table 17.2: Level 3 Recurring Fair Value Rollforward



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year Ended December 31, 2018
			Total Gains (Losses) (Realized/Unrealized)																								Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of December 31, 2018⁽¹⁾
			Total Gains (Losses) (Realized/Unrealized)
(Dollars in millions)	Balance, January 1, 2018		Included in Net Income⁽¹⁾			Included in OCI			Purchases		Sales			Issuances		Settlements			Transfers Into Level 3		Transfers Out of Level 3			Balance, December 31, 2018
Securities available for sale:⁽²⁾
RMBS	$	614	$	32		$	(8	)	$	0	$	0		$	0	$	(74	)	$	203	$	(334	)	$	433		$	28
CMBS	14		0			0			0		0			0		(4		)	0		0			10			0
Other securities	5		0			0			0		0			0		(5		)	0		0			0			0
Total securities available for sale	633		32			(8		)	0		0			0		(83		)	203		(334		)	443			28
Other assets:
Consumer MSRs	92		3			0			0		(97		)	2		0			0		0			0			0
Retained interest in securitizations	172		(14		)	0			0		0			0		0			0		0			158			(14		)
Net derivative assets (liabilities)⁽³⁾	13		(20		)	0			0		0			13		(17		)	0		1			(10		)	(20		)



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year Ended December 31, 2017
			Total Gains (Losses) (Realized/Unrealized)																							Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of December 31, 2017⁽¹⁾
			Total Gains (Losses) (Realized/Unrealized)
(Dollars in millions)	Balance, January 1, 2017		Included in Net Income⁽¹⁾			Included in OCI			Purchases		Sales			Issuances		Settlements			Transfers Into Level 3		Transfers Out of Level 3			Balance, December 31, 2017
Securities available for sale:
RMBS	$	518	$	90		$	(24	)	$	0	$	(116	)	$	0	$	(92	)	$	572	$	(334	)	$	614	$	19
CMBS	51		0			0			110		(50		)	0		(4		)	0		(93		)	14		0
Other securities	9		0			0			0		0			0		(4		)	0		0			5		0
Total securities available for sale	578		90			(24		)	110		(166		)	0		(100		)	572		(427		)	633		19
Other assets:
Consumer MSRs	80		(5		)	0			0		(3		)	27		(7		)	0		0			92		(5		)
Retained interest in securitizations	201		(29		)	0			0		0			0		0			0		0			172		(29		)
Net derivative assets (liabilities)⁽³⁾	18		0			0			0		0			46		(44		)	0		(7		)	13		0



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year Ended December 31, 2016
			Total Gains (Losses) (Realized/Unrealized)																					Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of December 31, 2016⁽¹⁾
			Total Gains (Losses) (Realized/Unrealized)
(Dollars in millions)	Balance, January 1, 2016		Included in Net Income⁽¹⁾			Included in OCI		Purchases		Sales		Issuances		Settlements			Transfers Into Level 3		Transfers Out of Level 3			Balance, December 31, 2016
Securities available for sale:
RMBS	$	504	$	31		$	9	$	110	$	0	$	0	$	(98	)	$	380	$	(418	)	$	518	$	32
CMBS	97		0			0		266		0		0		(14		)	64		(362		)	51		0
Other securities	14		(9		)	0		44		0		0		(10		)	0		(30		)	9		0
Total securities available for sale	615		22			9		420		0		0		(122		)	444		(810		)	578		32
Other assets:
Consumer MSRs	68		(5		)	0		0		0		23		(6		)	0		0			80		(5		)
Retained interest in securitizations	211		(10		)	0		0		0		0		0			0		0			201		(10		)
Net derivative assets (liabilities)⁽³⁾	30		(5		)	0		0		0		36		(33		)	0		(10		)	18		(5		)

__________


⁽¹⁾	Realized gains (losses) on securities available for sale are included in net securities gains (losses), retained interests in securitizations and consumer MSRs are reported as a component of non-interest income in our consolidated statements of income. Gains (losses) on derivatives are included as a component of net interest income or non-interest income in our consolidated statements of income.


⁽²⁾	Net unrealized losses included in other comprehensive income related to Level 3 securities available for sale still held as of December 31, 2018 were $17 million.


⁽³⁾	Includes derivative assets and liabilities of $38 million and $48 million, respectively, as of December 31, 2018, $37 million and $24 million, respectively, as of December 31, 2017, and $47 million and $29 million, respectively, as of December 31, 2016.

Significant Level 3 Fair Value Asset and Liability Inputs

Generally, uncertainties in fair value measurements of financial instruments, such as changes in unobservable inputs, may have a significant impact on fair value. Certain of these unobservable inputs will, in isolation, have a directionally consistent impact on the fair value of the instrument for a given change in that input. Alternatively, the fair value of the instrument may move in an opposite direction for a given change in another input. In general, an increase in the discount rate, default rates, loss severity and credit spreads, in isolation, would result in a decrease in the fair value measurement. In addition, an increase in default rates would generally be accompanied by a decrease in recovery rates, slower prepayment rates and an increase in liquidity spreads.

Techniques and Inputs for Level 3 Fair Value Measurements

The following table presents the significant unobservable inputs used to determine the fair values of our Level 3 financial instruments on a recurring basis. We utilize multiple vendor pricing services to obtain fair value for our securities. Several of our vendor pricing services are only able to provide unobservable input information for a limited number of securities due to software licensing restrictions. Other vendor pricing services are able to provide unobservable input information for all securities for which they provide a valuation. As a result, the unobservable input information for the securities available for sale presented below represents a composite summary of all information we are able to obtain. The unobservable input information for all other Level 3 financial instruments is based on the assumptions used in our internal valuation models.

Table 17.3: Quantitative Information about Level 3 Fair Value Measurements

Quantitative Information about Level 3 Fair Value Measurements

(Dollars in millions)

Fair Value at December 31,
2018

Significant

Valuation

Techniques

Significant

Unobservable

Inputs

Range

Weighted

Average⁽¹⁾

Securities available for sale:

RMBS

433

Discounted cash flows (vendor pricing)

Yield
Voluntary prepayment rate
Default rate
Loss severity

3-11%
0-17%
0-7%
0-75%

5%
5%
3%
65%

CMBS

Discounted cash flows (vendor pricing)

Yield

Other assets:

Retained interests in securitization⁽²⁾

158

Discounted cash flows

Life of receivables (months)
Voluntary prepayment rate
Discount rate
Default rate
Loss severity

3-56
3-14%
4-6%
2-4%
50-104%

N/A

Net derivative assets (liabilities)

(10

)

Discounted cash flows

Swap rates

Quantitative Information about Level 3 Fair Value Measurements

(Dollars in millions)

Fair Value at

December 31,

2017

Significant

Valuation

Techniques

Significant

Unobservable

Inputs

Range

Weighted

Average

Securities available for sale:

RMBS

614

Discounted cash flows (vendor pricing)

Yield
Voluntary prepayment rate
Default rate
Loss severity

2-9%
0-15%
0-8%
0-90%

5%
4%
3%
62%

CMBS

Discounted cash flows (vendor pricing)

Yield
Voluntary prepayment rate

3%
0%

Other securities

Discounted cash flows

Yield

Other assets:

Consumer MSRs

Discounted cash flows

Total prepayment rate
Discount rate
Option-adjusted spread rate
Servicing cost ($ per loan)

7-30%
14%
200-1,500 bps
$75-$100

16%
14%
458 bps
$76

Retained interests in securitization⁽²⁾

172

Discounted cash flows

Life of receivables (months)
Voluntary prepayment rate
Discount rate
Default rate
Loss severity

6-79
2-12%
3-10%
1-6%
3-115%

N/A

Net derivative assets (liabilities)

Discounted cash flows

Swap rates

__________


⁽¹⁾	Weighted averages are calculated by using the product of the input multiplied by the relative fair value of the instruments.


⁽²⁾	Due to the nature of the various mortgage securitization structures in which we have retained interests, it is not meaningful to present a consolidated weighted average for the significant unobservable inputs.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

We are required to measure and recognize certain assets at fair value on a nonrecurring basis on the consolidated balance sheets. These assets are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, from the application of lower of cost or fair value accounting or when we evaluate for impairment). The following describes the valuation techniques used in estimating the fair value of our financial assets and liabilities recorded at fair value on a nonrecurring basis.

Net Loans Held for Investment

For loans held for investment that are recorded at fair value on our consolidated balance sheets and measured on a nonrecurring basis, the fair value is determined using appraisal values that are obtained from independent appraisers, broker pricing opinions or other available market information, adjusted for the estimated cost to sell. Due to the use of significant unobservable inputs,

these loans are classified as Level 3 under the fair value hierarchy. Fair value adjustments for individually impaired collateralized loans held for investment are recorded in provision for credit losses in the consolidated statements of income.

Loans Held for Sale

Loans held for sale are carried at the lower of aggregate cost, net of deferred fees and deferred origination costs, or fair value. We originate loans with the intent to sell them. Certain commercial mortgage loans are sold to government-sponsored enterprises as part of a delegated underwriting and servicing (“DUS”) program. For DUS commercial mortgage loans, the fair value is estimated primarily using contractual prices and other market observable inputs. Credit card loans held for sale are valued based on other market observable inputs. These assets are therefore classified as Level 2. Fair value adjustments to loans held for sale are recorded in other non-interest income in our consolidated statements of income.

Other Assets

Other assets subject to nonrecurring fair value measurements include equity investments accounted for under measurement alternative, foreclosed property, other repossessed assets and long-lived assets held for sale. These assets held for sale are carried at the lower of the carrying amount or fair value less costs to sell. The fair value is determined based on the appraisal value, listing price of the property or collateral provided by independent appraisers, and is adjusted for the estimated costs to sell. Due to the use of significant unobservable inputs, these assets are classified as Level 3 under the fair value hierarchy. Fair value adjustments for these assets are recorded in other non-interest expense in the consolidated statements of income.

The following table presents the carrying value of the assets measured at fair value on a nonrecurring basis and still held as of December 31, 2018 and 2017, and for which a nonrecurring fair value measurement was recorded during the year then ended:

Table 17.4: Nonrecurring Fair Value Measurements



	December 31, 2018
	Estimated Fair Value Hierarchy				Total
(Dollars in millions)	Level 2		Level 3		Total
Loans held for investment	$	0	$	129	$	129
Loans held for sale	38		0		38
Other assets⁽¹⁾	0		100		100
Total	$	38	$	229	$	267



	December 31, 2017
	Estimated Fair Value Hierarchy				Total
(Dollars in millions)	Level 2		Level 3		Total
Loans held for investment	$	0	$	182	$	182
Loans held for sale	177		1		178
Other assets⁽¹⁾	0		35		35
Total	$	177	$	218	$	395

__________


⁽¹⁾	As of December 31, 2018, other assets included equity investments accounted for under measurement alternative of $24 million, foreclosed property and repossessed assets of $57 million and long-lived assets held for sale of $19 million. As of December 31, 2017, other assets included foreclosed property and repossessed assets of $17 million and long-lived assets held for sale of $18 million.

In the above table, loans held for investment are generally valued based in part on the estimated fair value of the underlying collateral and the non-recoverable rate, which is considered to be a significant unobservable input. The non-recoverable rate ranged from 0% to 84%, with a weighted average of 33%, and from 0% to 77%, with a weighted average of 21%, as of December 31, 2018 and 2017, respectively. The weighted average non-recoverable rate is calculated based on the estimated market value of the underlying collateral. The significant unobservable inputs and related quantitative information related to fair value of the other assets are not meaningful to disclose as they vary significantly across properties and collateral.

The following table presents total nonrecurring fair value measurements for the period, included in earnings, attributable to the change in fair value relating to assets that are still held at December 31, 2018, 2017 and 2016.

Table 17.5: Nonrecurring Fair Value Measurements Included in Earnings



	Total Gains (Losses)
	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Loans held for investment	$	(85	)	$	(100	)	$	(230	)
Loans held for sale	0			(3		)	(2		)
Other assets⁽¹⁾	(74		)	(12		)	(19		)
Total	$	(159	)	$	(115	)	$	(251	)

__________


⁽¹⁾	Other assets include fair value adjustments related to equity investments accounted for under the measurement alternative, foreclosed property, repossessed assets and long-lived assets held for sale.

Fair Value of Financial Instruments

The following table presents the carrying value and estimated fair value, including the level within the fair value hierarchy, of our financial instruments that are not measured at fair value on a recurring basis on our consolidated balance sheets as of December 31, 2018 and 2017.

Table 17.6: Fair Value of Financial Instruments



	December 31, 2018
	Carrying Value		Estimated Fair Value		Estimated Fair Value Hierarchy
(Dollars in millions)	Carrying Value		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	13,186	$	13,186	$	4,768	$	8,418	$	0
Restricted cash for securitization investors	303		303		303		0		0
Securities held to maturity	36,771		36,619		0		36,513		106
Net loans held for investment	238,679		241,556		0		0		241,556
Loans held for sale	1,192		1,218		0		1,218		0
Interest receivable	1,614		1,614		0		1,614		0
Other investments⁽¹⁾	1,725		1,725		0		1,725		0
Financial liabilities:
Deposits with defined maturities	38,471		38,279		0		38,279		0
Securitized debt obligations	18,307		18,359		0		18,359		0
Senior and subordinated notes	30,826		30,635		0		30,635		0
Federal funds purchased and securities loaned or sold under agreements to repurchase	352		352		0		352		0
Other borrowings⁽²⁾	9,354		9,354		0		9,354		0
Interest payable	458		458		0		458		0



	December 31, 2017
	Carrying Value		Estimated Fair Value		Estimated Fair Value Hierarchy
(Dollars in millions)	Carrying Value		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	14,040	$	14,040	$	4,458	$	9,582	$	0
Restricted cash for securitization investors	312		312		312		0		0
Securities held to maturity	28,984		29,437		200		29,217		20
Net loans held for investment	246,971		251,468		0		0		251,468
Loans held for sale	971		952		0		949		3
Interest receivable	1,536		1,536		0		1,536		0
Other investments⁽¹⁾	1,689		1,689		0		1,680		9
Financial liabilities:
Deposits	243,702		243,732		26,404		217,328		0
Securitized debt obligations	20,010		20,122		0		20,122		0
Senior and subordinated notes	30,755		31,392		0		31,392		0
Federal funds purchased and securities loaned or sold under agreements to repurchase	576		576		0		576		0
Other borrowings⁽²⁾	8,892		8,892		0		8,892		0
Interest payable	413		413		0		413		0

__________


⁽¹⁾	Other investments as of December 31, 2018 include FHLB and Federal Reserve stock. Other investments as of December 31, 2017 include FHLB and Federal Reserve stock, as well as cost method investments. These investments are included in other assets on our consolidated balance sheets.

⁽²⁾

Other borrowings excludes capital lease obligations.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Business Segments and Revenue from Contracts with Customers Business Segments and Revenue from Contracts with Customers (Notes)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Segment Reporting Disclosure

NOTE 18—BUSINESS SEGMENTS AND REVENUE FROM CONTRACTS WITH CUSTOMERS

Our principal operations are organized into three major business segments, which are defined primarily based on the products and services provided or the type of customer served: Credit Card, Consumer Banking and Commercial Banking. The operations of acquired businesses have been integrated into our existing business segments. Certain activities that are not part of a segment, such as management of our corporate investment portfolio, asset/liability management by our centralized Corporate Treasury group and residual tax expense or benefit to arrive at the consolidated effective tax rate that is not assessed to our primary business segments, are included in the Other category.


•	Credit Card: Consists of our domestic consumer and small business card lending, and international card businesses in Canada and the United Kingdom.


•	Consumer Banking: Consists of our branch-based deposit gathering and lending activities for consumers and small businesses, national deposit gathering and national auto lending.


•	Commercial Banking: Consists of our lending, deposit gathering, capital markets and treasury management services to commercial real estate and commercial and industrial customers. Our commercial and industrial customers typically include companies with annual revenues between $20 million and $2 billion.

•

Other category: Includes the residual impact of the allocation of our centralized Corporate Treasury group activities, such as management of our corporate investment portfolio and asset/liability management, to our business segments. Accordingly, net gains and losses on our investment securities portfolio and certain trading activities are included in the Other category. Other category also includes foreign exchange-rate fluctuations on foreign currency-denominated transactions; unallocated corporate expenses that do not directly support the operations of the business segments or for which the business segments are not considered financially accountable in evaluating their performance, such as certain restructuring charges; certain material items that are non-recurring in nature; offsets related to certain line-item reclassifications; and residual tax expense or benefit to arrive at the consolidated effective tax rate that is not assessed to our primary business segments.

Basis of Presentation

We report the results of each of our business segments on a continuing operations basis. The results of our individual businesses reflect the manner in which management evaluates performance and makes decisions about funding our operations and allocating resources.

Business Segment Reporting Methodology

The results of our business segments are intended to present each segment as if it were a stand-alone business. Our internal management and reporting process used to derive our segment results employs various allocation methodologies, including funds transfer pricing, to assign certain balance sheet assets, deposits and other liabilities and their related revenue and expenses directly or indirectly attributable to each business segment. Our funds transfer pricing process provides a funds credit for sources of funds, such as deposits generated by our Consumer Banking and Commercial Banking businesses, and a funds charge for the use of funds by each segment. Due to the integrated nature of our business segments, estimates and judgments have been made in allocating certain revenue and expense items. Transactions between segments are based on specific criteria or approximate third-party rates. We regularly assess the assumptions, methodologies and reporting classifications used for segment reporting, which may result in the implementation of refinements or changes in future periods.

The following is additional information on the principles and methodologies used in preparing our business segment results.

•

Net interest income: Interest income from loans held for investment and interest expense from deposits and other interest-bearing liabilities are reflected within each applicable business segment. Because funding and asset/liability management are managed centrally by our Corporate Treasury group, net interest income for our business segments also includes the results of a funds transfer pricing process that is intended to allocate a cost of funds used or credit for funds provided to all business segment assets and liabilities, respectively, using a matched funding concept. The taxable-equivalent benefit of tax-exempt products is also allocated to each business unit with a corresponding increase in income tax expense.


•	Non-interest income: Non-interest fees and other revenue associated with loans or customers managed by each business segment and other direct revenues are accounted for within each business segment.


•	Provision for credit losses: The provision for credit losses is directly attributable to the business segment in accordance with the loans each business segment manages.

•

Non-interest expense: Non-interest expenses directly managed and incurred by a business segment are accounted for within each business segment. We allocate certain non-interest expenses indirectly incurred by business segments, such as corporate support functions, to each business segment based on various factors, including the actual cost of the services from the service providers, the utilization of the services, the number of employees or other relevant factors.


•	Goodwill and intangible assets: Goodwill and intangible assets that are not directly attributable to business segments are assigned to business segments based on the relative fair value of each segment. Intangible amortization is included in the results of the applicable segment.


•	Income taxes: Income taxes are assessed for each business segment based on a standard tax rate with the residual tax expense or benefit to arrive at the consolidated effective tax rate included in the Other category.


•	Loans held for investment: Loans are reported within each business segment based on product or customer type served by that business segment.


•	Deposits: Deposits are reported within each business segment based on product or customer type served by that business segment.

Segment Results and Reconciliation

We may periodically change our business segments or reclassify business segment results based on modifications to our management reporting methodologies or changes in organizational alignment. In the first quarter of 2018, we made a change in how revenue is measured in our Commercial Banking business to include the tax benefits of losses on certain tax-advantaged investments. These tax benefits are included in revenue on a taxable-equivalent basis within our Commercial Banking business, with an offsetting reduction in the Other category. This change in measurement of our Commercial Banking revenue did not have any impact to the consolidated financial statements.

The following tables present our business segment results for the years ended December 31, 2018, 2017 and 2016, selected balance sheet data as of December 31, 2018, 2017 and 2016, and a reconciliation of our total business segment results to our reported consolidated income from continuing operations, loans held for investment and deposits.

Table 18.1: Segment Results and Reconciliation



	Year Ended December 31, 2018
(Dollars in millions)	Credit Card		Consumer Banking		Commercial Banking⁽¹⁾⁽²⁾		Other^(1)(2)(3)			Consolidated Total
Net interest income	$	14,167	$	6,549	$	2,152	$	7		$	22,875
Non-interest income	3,520		663		744		274			5,201
Total net revenue	17,687		7,212		2,896		281			28,076
Provision (benefit) for credit losses	4,984		838		83		(49		)	5,856
Non-interest expense	8,542		4,027		1,654		679			14,902
Income (loss) from continuing operations before income taxes	4,161		2,347		1,159		(349		)	7,318
Income tax provision (benefit)	970		547		270		(494		)	1,293
Income from continuing operations, net of tax	$	3,191	$	1,800	$	889	$	145		$	6,025
Loans held for investment	$	116,361	$	59,205	$	70,333	$	0		$	245,899
Deposits	0		198,607		29,480		21,677			249,764

	Year Ended December 31, 2017
(Dollars in millions)	Credit Card		Consumer Banking		Commercial Banking⁽¹⁾		Other⁽¹⁾			Consolidated Total
Net interest income	$	13,648	$	6,380	$	2,261	$	171		$	22,460
Non-interest income	3,325		749		708		(5		)	4,777
Total net revenue	16,973		7,129		2,969		166			27,237
Provision for credit losses	6,066		1,180		301		4			7,551
Non-interest expense	7,916		4,233		1,603		442			14,194
Income (loss) from continuing operations before income taxes	2,991		1,716		1,065		(280		)	5,492
Income tax provision	1,071		626		389		1,289			3,375
Income (loss) from continuing operations, net of tax	$	1,920	$	1,090	$	676	$	(1,569	)	$	2,117
Loans held for investment	$	114,762	$	75,078	$	64,575	$	58		$	254,473
Deposits	0		185,842		33,938		23,922			243,702



	Year Ended December 31, 2016
(Dollars in millions)	Credit Card		Consumer Banking		Commercial Banking⁽¹⁾		Other⁽¹⁾			Consolidated Total
Net interest income	$	12,635	$	5,829	$	2,216	$	193		$	20,873
Non-interest income	3,380		733		578		(63		)	4,628
Total net revenue	16,015		6,562		2,794		130			25,501
Provision (benefit) for credit losses	4,926		1,055		483		(5		)	6,459
Non-interest expense	7,703		4,139		1,407		309			13,558
Income (loss) from continuing operations before income taxes	3,386		1,368		904		(174		)	5,484
Income tax provision (benefit)	1,226		498		329		(339		)	1,714
Income from continuing operations, net of tax	$	2,160	$	870	$	575	$	165		$	3,770
Loans held for investment	$	105,552	$	73,054	$	66,916	$	64		$	245,586
Deposits	0		181,917		33,866		20,985			236,768

_________


⁽¹⁾	Some of our commercial investments generate tax-exempt income, tax credits or other tax benefits. Accordingly, we present our Commercial Banking revenue and yields on a taxable-equivalent basis, calculated using the federal statutory tax rate (21% for 2018 and 35% for 2017 and 2016) and state taxes where applicable, with offsetting reductions to the Other category.

⁽²⁾

In 2018, we made a change in how revenue is measured in our Commercial Banking business to include the tax benefits of losses on certain tax-advantaged investments. These tax benefits are included in revenue on a taxable-equivalent basis within our Commercial Banking business, with an offsetting reduction to the Other category. In addition, all revenue presented on a taxable-equivalent basis in our Commercial Banking business was impacted by the reduction of the federal tax rate set forth in the Tax Act. The net impact of the measurement change and the reduction of the federal tax rate was a decrease of $126 million in revenue in our Commercial Banking business for the year ended December 31, 2018, with an offsetting impact to the Other category.


⁽³⁾	In 2018, we sold all of our consumer home loan portfolio and recognized a gain of approximately $499 million in the Other category, including a benefit for credit losses of $46 million.

Revenue from Contracts with Customers

In 2018, we adopted ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) under the modified retrospective transition method. The majority of our revenue from contracts with customers consists of interchange fees in our Credit Card business, service charges and other customer-related fees, and other contract revenue in our Consumer Banking and Commercial Banking businesses.

Interchange fees are primarily from our Credit Card business and are recognized upon settlement with the interchange networks, net of rewards earned by customers. Service charges and other customer-related fees within our Consumer Banking business are primarily related to fees earned on consumer deposit accounts for account maintenance and various transaction-based services such as overdrafts and ATM usage. Service charges and other customer-related fees within our Commercial Banking business are mostly related to fees earned on treasury management and capital markets services. Other contract revenue consists primarily of revenue earned on certain marketing and promotional events from our auto dealers within our Consumer Banking business. Revenue from contracts with customers is included in non-interest income in our consolidated statements of income.

The following table presents revenue from contracts with customers and a reconciliation to non-interest income by business segment for the year ended December 31, 2018.

Table 18.2: Revenue from Contracts with Customers and Reconciliation to Segments Results



	Year Ended December 31, 2018
(Dollars in millions)	Credit Card		Consumer Banking		Commercial Banking⁽¹⁾		Other⁽¹⁾			Consolidated Total
Contract revenue:
Interchange fees, net⁽²⁾	$	2,609	$	185	$	33	$	(4	)	$	2,823
Service charges and other customer-related fees	0		367		123		(1		)	489
Other	8		109		2		0			119
Total contract revenue	2,617		661		158		(5		)	3,431
Revenue from other sources	903		2		586		279			1,770
Total non-interest income	$	3,520	$	663	$	744	$	274		$	5,201

__________


⁽¹⁾	Some of our commercial investments generate tax-exempt income, tax credits or other tax benefits. Accordingly, we present our Commercial Banking revenue and yields on a taxable-equivalent basis, calculated using the federal statutory tax rate of 21% and state taxes where applicable, with offsetting reclassifications to the Other category.

⁽²⁾

Interchange fees are presented net of customer reward expenses of $4.4 billion for the year ended December 31, 2018.

Commitments, Contingencies, Guarantees, and Others

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments, Contingencies, Guarantees and Others

NOTE 19—COMMITMENTS, CONTINGENCIES, GUARANTEES AND OTHERS

Commitments to Lend

Our unfunded lending commitments primarily consist of credit card lines, loan commitments to customers of both our Commercial Banking and Consumer Banking businesses, as well as standby and commercial letters of credit. These commitments, other than credit card lines, are legally binding conditional agreements that have fixed expirations or termination dates and specified interest rates and purposes. The contractual amount of these commitments represents the maximum possible credit risk to us should the counterparty draw upon the commitment. We generally manage the potential risk of unfunded lending commitments by limiting the total amount of arrangements, monitoring the size and maturity structure of these portfolios, and applying the same credit standards for all of our credit activities.

For unused credit card lines, we have not experienced and do not anticipate that all of our customers will access their entire available line at any given point in time. Commitments to extend credit other than credit card lines generally require customers to maintain certain credit standards. Collateral requirements and loan-to-value (“LTV”) ratios are the same as those for funded transactions and are established based on management’s credit assessment of the customer. These commitments may expire without being drawn upon; therefore, the total commitment amount does not necessarily represent future funding requirements.

We also issue letters of credit, such as financial standby, performance standby and commercial letters of credit, to meet the financing needs of our customers. Standby letters of credit are conditional commitments issued by us to guarantee the performance of a customer to a third party in a borrowing arrangement. Commercial letters of credit are short-term commitments issued primarily to facilitate trade finance activities for customers and are generally collateralized by the goods being shipped to the client. These collateral requirements are similar to those for funded transactions and are established based on management’s credit assessment of the customer. Management conducts regular reviews of all outstanding letters of credit and the results of these reviews are considered in assessing the adequacy of reserves for unfunded lending commitments.

The following table presents the contractual amount and carrying value of our unfunded lending commitments as of December 31, 2018 and 2017. The carrying value represents our reserve and deferred revenue on legally binding commitments.

Table 19.1: Unfunded Lending Commitments: Contractual Amount and Carrying Value



	Contractual Amount				Carrying Value
(Dollars in millions)	December 31, 2018		December 31, 2017		December 31, 2018		December 31, 2017
Credit card lines	$	346,186	$	351,481	N/A		N/A
Other loan commitments⁽¹⁾	34,449		31,840		$	95	$	84
Standby letters of credit and commercial letters of credit⁽²⁾	1,792		2,046		29		43
Total unfunded lending commitments	$	382,427	$	385,367	$	124	$	127

__________


⁽¹⁾	Includes $1.3 billion and $1.0 billion of advised lines of credit as of December 31, 2018 and 2017, respectively.


⁽²⁾	These financial guarantees have expiration dates ranging from 2019 to 2025 as of December 31, 2018.

Loss Sharing Agreements and Other Obligations

Within our Commercial Banking business, we originate multifamily commercial real estate loans with the intent to sell them to the GSEs. We enter into loss sharing agreements with the GSEs upon the sale of the loans. At inception, we record a liability representing the fair value of our obligation which is subsequently amortized as we are released from risk of payment under the loss sharing agreement. If payment under the loss sharing agreement becomes probable and estimable, an additional liability may be recorded on the consolidated balance sheets and a non-interest expense may be recognized in the consolidated statements of income. The liability recognized on our consolidated balance sheets for our loss sharing agreements was $59 million and $60 million as of December 31, 2018 and 2017, respectively.

U.K. Payment Protection Insurance

In the U.K., we previously sold payment protection insurance (“PPI”). In response to an elevated level of customer complaints across the industry, heightened media coverage and pressure from consumer advocacy groups, the U.K. Financial Conduct Authority (“FCA”), formerly the Financial Services Authority, investigated and raised concerns about the way the industry has handled complaints related to the sale of these insurance policies. For the past several years, the U.K.’s Financial Ombudsman Service (“FOS”) has been adjudicating customer complaints relating to PPI, escalated to it by consumers who disagree with the rejection of their complaint by firms, leading to customer remediation payments by us and others within the industry. On March 2, 2017, the FCA issued a statement that sets out final rules and guidance on the PPI complaints deadline, which has been set as August 29, 2019. The statement also provides clarity on how to handle PPI complaints under s.140A of the Consumer Credit Act, including guidance on how redress for such complaints should be calculated. The final rules and guidance came into force on August 29, 2017.

In determining our best estimate of incurred losses for future remediation payments, management considers numerous factors, including (i) the number of customer complaints we expect in the future; (ii) our expectation of upholding those complaints; (iii) the expected number of complaints customers escalate to the FOS; (iv) our expectation of the FOS upholding such escalated complaints; (v) the number of complaints that fall under s.140A of the Consumer Credit Act; (vi) the number of litigation claims being pursued under s.140A of the Consumer Credit Act; and (vii) the estimated remediation payout to customers. We monitor these factors each quarter and adjust our reserves to reflect the latest data.

Management’s best estimate of incurred losses related to U.K. PPI totaled $133 million and $249 million as of December 31, 2018 and 2017, respectively. In 2018, we recognized additional charges of $99 million to reflect greater than expected complaint volumes. Other movements to the reserve were a combination of utilization of the reserve through customer refund payments and foreign exchange movements. Our best estimate of reasonably possible future losses beyond our reserve as of December 31, 2018 is approximately $100 million.

Litigation

In accordance with the current accounting standards for loss contingencies, we establish reserves for litigation related matters that arise from the ordinary course of our business activities when it is probable that a loss associated with a claim or proceeding has been incurred and the amount of the loss can be reasonably estimated. None of the amounts we currently have recorded individually or in the aggregate are considered to be material to our financial condition. Litigation claims and proceedings of all types are subject to many uncertain factors that generally cannot be predicted with assurance. Below we provide a description of potentially material legal proceedings and claims.

For some of the matters disclosed below, we are able to estimate reasonably possible losses above existing reserves, and for other disclosed matters, such an estimate is not possible at this time. For those matters below where an estimate is possible, management currently estimates the reasonably possible future losses beyond our reserves as of December 31, 2018 are approximately $1.1 billion. Our reserve and reasonably possible loss estimates involve considerable judgment and reflect that there is still significant uncertainty regarding numerous factors that may impact the ultimate loss levels. Notwithstanding our attempt to estimate a reasonably possible range of loss beyond our current accrual levels for some litigation matters based on current information, it is possible that actual future losses will exceed both the current accrual level and the range of reasonably possible losses disclosed here. Given the inherent uncertainties involved in these matters, especially those involving governmental agencies, and the very large or indeterminate damages sought in some of these matters, there is significant uncertainty as to the ultimate liability we may incur from these litigation matters and an adverse outcome in one or more of these matters could be material to our results of operations or cash flows for any particular reporting period.

Interchange

In 2005, a putative class of retail merchants filed antitrust lawsuits against MasterCard and Visa and several issuing banks, including Capital One, seeking both injunctive relief and monetary damages for an alleged conspiracy by defendants to fix the level of interchange fees. Other merchants have asserted similar claims in separate lawsuits, and while these separate cases did not name any issuing banks, Visa, MasterCard and issuers, including Capital One, have entered settlement and judgment sharing agreements allocating the liabilities of any judgment or settlement arising from all interchange-related cases.

The lawsuits were consolidated before the U.S. District Court for the Eastern District of New York for certain purposes and were settled in 2012. The class settlement, however, was invalidated by the United States Court of Appeals for the Second Circuit in June 2016, and the suit was separated into separate class actions seeking injunctive and monetary relief, respectively. In addition, numerous merchant groups opted out of the 2012 settlement and have pursued their own claims. The claims by the injunctive relief class have not been resolved, but the parties reached a new settlement agreement with the monetary damages class in August 2018, whereby the class would receive up to approximately $6.2 billion collectively from the defendants in exchange for a release of their claims, depending on the percentage of class plaintiffs who opt out. The trial court preliminarily approved the settlement in January 2019. Visa and MasterCard have also settled several of the opt-out cases, which required non-material payments from issuing banks, including Capital One. Visa created a litigation escrow account following its IPO of stock in 2008 that funds settlements for its member banks, and any settlements related to MasterCard-allocated losses have either already been paid or are reflected in Capital One’s reserves.

Mortgage Representation and Warranty

We face residual exposure related to subsidiaries that originated residential mortgage loans and sold these loans to various purchasers, including purchasers who created securitization trusts. In connection with their sales of mortgage loans, these subsidiaries entered into agreements containing varying representations and warranties about, among other things, the ownership of the loan, the validity of the lien securing the loan, the loan’s compliance with any applicable criteria established by the purchaser, including underwriting guidelines and the existence of mortgage insurance, and the loan’s compliance with applicable federal, state and local laws. Each of these subsidiaries may be required to repurchase mortgage loans or indemnify certain purchasers and others against losses they incur in the event of certain breaches of these representations and warranties.

The substantial majority of our representation and warranty exposure has been resolved through litigation, and our remaining representation and warranty exposure is almost entirely litigation-related. Accordingly, we establish litigation reserves for representation and warranty losses that we consider to be both probable and reasonably estimable. The reserve process relies heavily on estimates, which are inherently uncertain, and requires the application of judgment. Our reserves and estimates of reasonably possible losses could be impacted by claims which may be brought by securitization trustees and sponsors, bond-insurers, investors, and GSEs, as well as claims brought by governmental agencies under the Financial Institutions Reform, Recovery and Enforcement Act (“FIRREA”), the False Claims Act or other federal or state statutes.

In May, June and July 2012, the Federal Housing Finance Agency (“FHFA”) (acting as conservator for Freddie Mac) filed three summonses with notice in the New York state court against GreenPoint, on behalf of the trustees for three RMBS trusts backed by loans originated by GreenPoint with an aggregate original principal balance of $3.4 billion. In January 2013, the plaintiffs filed an amended consolidated complaint in the name of the three trusts, acting by the respective trustees, alleging breaches of contractual representations and warranties regarding compliance with GreenPoint underwriting guidelines relating to certain loans (“FHFA Litigation”). Plaintiffs seek specific performance of the repurchase obligations with respect to the loans for which they have provided notice of alleged breaches as well as all other allegedly breaching loans, rescissory damages, indemnification, costs and interest. On March 29, 2017, the trial court granted GreenPoint’s motion for summary judgment and dismissed plaintiff’s claims as untimely. The plaintiff appealed to the Second Circuit, which affirmed the dismissal on February 6, 2019.

Anti-Money Laundering

Capital One is subject to an open consent order with the Office of the Comptroller of the Currency (“OCC”) dated July 10, 2015 relating to our anti-money laundering (“AML”) program. In October 2018, Capital One paid a civil monetary penalty of $100 million to resolve the monetary component of the AML consent order.

Capital One continues to be investigated by the New York District Attorney’s Office (“NYDA”), the Department of Justice (“DOJ”) and the Financial Crimes Enforcement Network (“FinCEN”) of the U.S. Department of Treasury primarily with respect to certain former check casher clients of the Commercial Banking business and Capital One’s AML program. Capital One is cooperating with all agencies involved in the investigation. We are in discussions with FinCEN to explore a potential regulatory resolution of its investigation, which could include a monetary penalty.

Other Pending and Threatened Litigation

In addition, we are commonly subject to various pending and threatened legal actions relating to the conduct of our normal business activities. In the opinion of management, the ultimate aggregate liability, if any, arising out of all such other pending or threatened legal actions, is not expected to be material to our consolidated financial position or our results of operations.

Capital One Financial Corporation (Parent Company Only)

12 Months Ended

Dec. 31, 2018

Condensed Financial Information Disclosure [Abstract]

Capital One Financial Corporation (Parent Company Only)

The following parent company only financial statements are prepared in accordance with Regulation S-X of the U.S. Securities and Exchange Commission (“SEC”).

Table 20.1: Parent Company Statements of Income



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Interest income	$	313		$	178		$	120
Interest expense	720			381			258
Dividends from subsidiaries	2,750			300			3,936
Non-interest income (loss)	19			19			(13		)
Non-interest expense	29			34			48
Income before income taxes and equity in undistributed earnings of subsidiaries	2,333			82			3,737
Income tax benefit	(128		)	(103		)	(79		)
Equity in undistributed earnings of subsidiaries	3,554			1,797			(65		)
Net income	6,015			1,982			3,751
Other comprehensive income (loss), net of tax	(136		)	23			(333		)
Comprehensive income	$	5,879		$	2,005		$	3,418

Table 20.2: Parent Company Balance Sheets



	December 31,		December 31,
(Dollars in millions)	2018		2017
Assets:
Cash and cash equivalents	$	10,286	$	8,196
Investments in subsidiaries	58,154		54,712
Loans to subsidiaries	2,603		548
Securities available for sale	795		907
Other assets	1,250		729
Total assets	$	73,088	$	65,092

Liabilities:
Senior and subordinated notes	$	19,518	$	14,392
Borrowings from subsidiaries	1,671		1,633
Accrued expenses and other liabilities	231		337
Total liabilities	21,420		16,362
Total stockholders’ equity	51,668		48,730
Total liabilities and stockholders’ equity	$	73,088	$	65,092

Table 20.3: Parent Company Statements of Cash Flows



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Operating activities:
Net income	$	6,015		$	1,982		$	3,751
Adjustments to reconcile net income to net cash from operating activities:
Equity in undistributed earnings of subsidiaries	(3,554		)	(1,797		)	65
Other operating activities	(35		)	327			(10		)
Net cash from operating activities	2,426			512			3,806
Investing activities:
Net payments to subsidiaries	(577		)	(4,956		)	(163		)
Proceeds from paydowns and maturities of securities available for sale	140			130			71
Changes in loans to subsidiaries	(2,055		)	44			(71		)
Net cash from investing activities	(2,492		)	(4,782		)	(163		)
Financing activities:
Borrowings:
Changes in borrowings from subsidiaries	38			23			19
Issuance of senior and subordinated notes	5,227			6,948			1,487
Proceeds from paydowns and maturities of senior and subordinated notes	0			(804		)	(1,750		)
Common stock:
Net proceeds from issuances	175			164			131
Dividends paid	(773		)	(780		)	(812		)
Preferred stock:
Net proceeds from issuances	0			0			1,066
Dividends paid	(265		)	(265		)	(214		)
Purchases of treasury stock	(2,284		)	(240		)	(3,661		)
Proceeds from share-based payment activities	38			124			142
Net cash from financing activities	2,156			5,170			(3,592		)
Changes in cash and cash equivalents	2,090			900			51
Cash and cash equivalents, beginning of the period	8,196			7,296			7,245
Cash and cash equivalents, end of the period	$	10,286		$	8,196		$	7,296

Related Party Transactions

12 Months Ended

Dec. 31, 2018

Related Party Transactions

NOTE 21—RELATED PARTY TRANSACTIONS

In the ordinary course of business, we may have loans issued to our executive officers, directors and principal stockholders. Pursuant to our policy, such loans are issued on the same terms as those prevailing at the time for comparable loans to unrelated persons and do not involve more than the normal risk of collectability.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Basis of Presentation

The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. (“U.S. GAAP”).

Use of Estimates

The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and in the related disclosures. These estimates are based on information available as of the date of the consolidated financial statements. While management makes its best judgments, actual amounts or results could differ from these estimates. Certain prior period amounts have been reclassified to conform to the current period presentation.

Principles of Consolidation

Voting Interest Entities

Equity and Cost Method Investments

Investments in entities where we do not have a controlling financial interest but we have significant influence over the entity’s financial and operating decisions (generally defined as owning a voting interest of 20% to 50%) are accounted for under the equity method. If we own less than 20% of a voting interest entity, we generally measure equity investments at fair value with changes in fair value recorded through net income, except those that do not have a readily determinable fair value (for which a measurement alternative can be elected). We report equity investments in other assets on our consolidated balance sheets and include our share of income or loss and dividends from those investments in other non-interest income in our consolidated statements of income.

Variable Interest Entities

Cash and Cash Equivalents

Securities Resale and Repurchase Agreements

Investment Securities

Loans

Loan Classification

Loans Held for Investment

Loans Held for Sale

Loans Acquired

Loans Acquired and Accounted for Based on Expected Cash Flows

Loan Modifications and Restructurings

Delinquent and Nonperforming Loans

Nonperforming loans generally include loans that have been placed on nonaccrual status, but we do not report loans classified as held for sale as nonperforming.

Our policies for classifying loans as nonperforming, by loan category, are as follows:

•


•	Consumer banking loans: We classify consumer banking loans as nonperforming when we determine that the collectability of all interest and principal on the loan is not reasonably assured, generally when the loan becomes 90 days past due.


•	Commercial banking loans: We classify commercial banking loans as nonperforming as of the date we determine that the collectability of all interest and principal on the loan is not reasonably assured.


•	Modified loans and troubled debt restructurings: Modified loans, including TDRs, that are current at the time of the restructuring remain on accrual status if there is demonstrated performance prior to the restructuring and continued performance under the modified terms is expected. Otherwise, the modified loan is classified as nonperforming.


•	PCI loans: PCI loans are not classified as delinquent or nonperforming.

Impaired Loans


•	Credit card loans: Credit card loans that have been modified in a troubled debt restructuring are identified and accounted for as individually impaired.


•	Consumer banking loans: Consumer loans that have been modified in a troubled debt restructuring are identified and accounted for as individually impaired.


•	Commercial banking loans: Commercial loans classified as nonperforming and commercial loans that have been modified in a troubled debt restructuring are reported as individually impaired.

Charge-Offs

•


•	Commercial banking loans: We charge off commercial loans in the period we determine that the unpaid principal loan amounts are uncollectible.

•

PCI loans: We do not record charge-offs on PCI loans that are meeting or exceeding our performance expectations as of the date of acquisition, as the fair values of these loans already reflect a discount for expected future credit losses. We record charge-offs on PCI loans only if actual losses exceed estimated credit losses incorporated into the fair value recorded at acquisition.

Allowance for Loan and Lease Losses

Securitization of Loans

Premises and Equipment



Premises and Equipment		Useful Lives
Buildings and improvements		5-39 years
Furniture and equipment		3-10 years
Computer software		3 years
Leasehold improvements		Lesser of the useful life or the remaining fixed non-cancelable lease term

Goodwill and Other Intangible Assets

Mortgage Servicing Rights

Foreclosed Property and Repossessed Assets

Restricted Equity Investments

Litigation

Customer Rewards Reserve

Revenue Recognition

Interest Income and Fees

Interest income and fees on loans and investment securities are recognized based on the contractual provisions of the underlying arrangements.

Interchange Income

Card Partnership Agreements

Collaborative Arrangements

Stock-based Compensation

Marketing Expense

We expense marketing costs as incurred.

Income Taxes

Earnings Per Share

Earnings per share is calculated and reported under the “two-class” method. The “two-class” method is an earnings allocation method under which earnings per share is calculated for each class of common stock and participating security considering both dividends declared or accumulated and participation rights in undistributed earnings as if all such earnings had been distributed during the period. We have unvested share-based payment awards which have a right to receive nonforfeitable dividends. These share-based payment awards are deemed to be participating securities.We calculate basic earnings per share by dividing net income, after deducting dividends on preferred stock and participating securities as well as undistributed earnings allocated to participating securities, by the average number of common shares outstanding during the period, net of any treasury shares. We calculate diluted earnings per share in a similar manner after consideration of the potential dilutive effect of common stock equivalents on the average number of common shares outstanding during the period. Common stock equivalents include warrants, stock options, restricted stock awards and units, and performance share awards and units. Common stock equivalents are calculated based upon the treasury stock method using an average market price of common shares during the period. Dilution is not considered when a net loss is reported. Common stock equivalents that have an antidilutive effect are excluded from the computation of diluted earnings per share. See “Note 13—Earnings Per Common Share” for additional details.

Derivative Instruments and Hedging Activities

Fair Value



Level 1:		Valuation is based on quoted prices (unadjusted) in active markets for identical assets or liabilities.
Level 2:		Valuation is based on observable market-based inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Level 3:		Valuation is generated from techniques that use significant assumptions not observable in the market. Valuation techniques include pricing models, discounted cash flow methodologies or similar techniques.

Accounting for Acquisitions

New Accounting Standards

Newly Adopted Accounting Standards



Standard	Guidance	Adoption Timing and Financial Statements Impacts
Accounting Implications of the Tax Act Accounting Standards Update (“ASU”) No. 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 Issued March 2018	Codifies the SEC Staff views expressed in Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act. Addresses situations where an entity’s accounting for the income tax effects of the Tax Act is incomplete upon issuance of the entity’s financial statements for the reporting period in which the Tax Act was enacted.	We adopted this standard in the first quarter of 2018. In accordance with Staff Accounting Bulletin No. 118, we included certain provisional amounts for the income tax effects of the Tax Act in our consolidated financial statements as of and for the year ended December 31, 2017. As of December 2018, we completed our accounting for the income tax effects of the Tax Act. We did not have any significant measurement period adjustments in the year ended December 31, 2018.

Reclassification of Stranded Tax Effects ASU No. 2018-02, Income Statement—Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income Issued February 2018	Allows a one-time reclassification from AOCI to retained earnings for tax effects stranded in AOCI as a result of the Tax Act.	We early adopted this standard in the first quarter of 2018, resulting in a decrease to AOCI and an increase to retained earnings of $173 million. Our reclassification included the effects of the reduction in the federal corporate income tax rate enacted by the Tax Act and the resulting impacts on the federal benefit of deducting state income taxes.

Hedge Accounting Improvements ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities Issued August 2017	Eliminates the concept of separately measuring and reporting hedge ineffectiveness. Requires entities to present the earnings effect of a hedging instrument in the same income statement line item in which the earnings effect of the hedged item is reported. For a closed pool of pre-payable financial assets, allows entities to hedge an amount that is not expected to be affected by prepayments, defaults and other events under the “last-of-layer” method. Permits a one-time reclassification of debt securities eligible to be hedged under the “last-of-layer” method from held to maturity to available for sale upon adoption.	We early adopted this standard in the first quarter of 2018 under the modified retrospective transition method. As permitted by this standard, and in order to optimize our investment portfolio management for capital and risk management considerations, we made a one-time election to transfer $9.0 billion of held to maturity securities eligible to be hedged under the “last-of-layer” method to the available for sale category, resulting in an increase to AOCI of $82 million after-tax ($107 million pre-tax). See “Note 3—Investment Securities” and “Note 10—Derivative Instruments and Hedging Activities” for additional information on the impacts of the transfer, as well as the disclosures required under the new guidance.

Statement of Cash Flows Classification ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments Issued August 2016	Clarifies or creates guidance for eight specific transactions to reduce the identified diversity in practice when presenting or classifying the transactions in the statement of cash flows.	We adopted this standard in the first quarter of 2018 under the retrospective transition method and our adoption did not have a material impact on our consolidated financial statements.



Standard	Guidance	Adoption Timing and Financial Statements Impacts
Recognition and Measurement ASU No. 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities Issued January 2016	Requires entities to measure equity investments at fair value with changes in fair value recorded through net income, except those accounted for under the equity method of accounting, or those that do not have a readily determinable fair value (for which a measurement alternative can be elected).	We adopted this standard in the first quarter of 2018 under the modified retrospective transition method and our adoption did not have a material impact on our consolidated financial statements.

Revenue Recognition ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Issued May 2014	Replaces significant portions of existing industry and transaction-specific revenue recognition rules with a more principles-based recognition model. Most revenue associated with financial instruments, including interest income, loan origination fees and credit card fees, is outside the scope of the guidance. Gains and losses on investment securities, derivatives and sales of financial instruments are similarly excluded from the scope.	We adopted this standard in the first quarter of 2018 under the modified retrospective transition method. We determined interchange fees earned on credit and debit card transactions, net of any related customer rewards, are in the scope of the amended guidance. We assessed the impact of the new guidance by evaluating our contracts, identifying our performance obligations, determining when the performance obligations were satisfied to allow us to recognize revenue and determining the amount of revenue to recognize. As a result of this analysis, we determined our recognition, measurement and presentation of interchange fees net of customer rewards costs will remain consistent with our past practices. Our adoption did not have a material impact on our consolidated financial statements. See “Note 18—Business Segments and Revenue from Contracts with Customers” for the new disclosures required under this guidance.

Accounting Standards Issued but Not Adopted as of December 31, 2018



Standard	Guidance	Accounting Standards Issued but Not Adopted as of December 31, 2018
Cloud Computing ASU No. 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract Issued August 2018	Aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license).	Effective January 1, 2020, with early adoption permitted, using either the retrospective or prospective method of adoption. We plan to adopt the standard on its effective date and are currently evaluating the expected impact of such adoption.

Premium Amortization on Callable Debt ASU No. 2017-08, Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities Issued March 2017	Shortens the amortization period from the contractual life to the earliest call date for certain purchased callable debt securities held at a premium.	We adopted this guidance in the first quarter of 2019 using the modified retrospective method of adoption. Our adoption of this standard did not have a material impact on our consolidated financial statements.

Goodwill Impairment Test Simplification ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment Issued January 2017	Eliminates the second step from the current goodwill impairment test. Under the current guidance, the first step compares a reporting unit’s carrying value to its fair value. If the carrying value exceeds fair value, an entity performs the second step, which assigns the reporting unit’s fair value to its assets and liabilities, including unrecognized assets and liabilities, in the same manner as required in purchase accounting. Under the new guidance, any impairment of a reporting unit’s goodwill is determined based on the amount by which the reporting unit’s carrying value exceeds its fair value, limited to the amount of goodwill allocated to the reporting unit.	Effective January 1, 2020, with early adoption permitted, using the prospective method of adoption. We plan to adopt the standard on its effective date and do not expect such adoption to have a material impact on our consolidated financial statements.



Standard	Guidance	Accounting Standards Issued but Not Adopted as of December 31, 2018
Current Expected Credit Loss (“CECL”) ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Issued June 2016	Requires the use of current expected credit loss model that is based on expected rather than incurred losses to determine our allowance for credit losses on financial assets measured at amortized cost, certain net investments in leases and certain off-balance sheet arrangements. Replaces current accounting for PCI and impaired loans. Amends the other-than-temporary impairment model for available for sale debt securities to require that credit losses (and subsequent recoveries) be recorded through an allowance approach, rather than through permanent write-downs for credit losses and subsequent accretion of positive changes through interest income over time.	Effective January 1, 2020, with early adoption permitted no earlier than January 1, 2019, using the modified retrospective method of adoption. We plan to adopt the standard on its effective date. We have established a company-wide, cross-functional governance structure for our implementation of this standard. We are in the process of determining key accounting interpretations, data requirements and necessary changes to our credit loss estimation methods, processes and systems. We continue to assess the potential impact on our consolidated financial statements and related disclosures. We currently expect our adoption of this guidance will result in an increase to our reserves for credit losses on financial instruments due to the requirement to record expected losses over the remaining contractual lives of our financial instruments; however, the actual impact will depend on the characteristics of our financial instruments, economic conditions, and our economic and loss forecasts at the adoption date.

Leases ASU No. 2016-02, Leases (Topic 842) Issued February 2016	Requires lessees to recognize right of use assets and lease liabilities on their consolidated balance sheets and disclose key information about all their leasing arrangements, with certain practical expedients.	We adopted this guidance in the first quarter of 2019, using the modified retrospective method of adoption without restating prior periods. We elected the practical expedients that permitted us to not reassess the lease classification of existing leases, whether existing contracts contain a lease or the treatment of initial direct costs on existing leases. Upon adoption, we recorded a lease liability of $1.9 billion and right of use asset of $1.6 billion, which is net of other lease-related balances. We do not expect material changes to the recognition of operating lease expense in our consolidated statements of income as a result of adopting this guidance.

Offsetting of Financial Assets and Liabilities

Balance Sheet Offsetting of Financial Assets and LiabilitiesDerivative contracts and repurchase agreements that we execute bilaterally in the OTC market are governed by enforceable master netting arrangements where we generally have the right to offset exposure with the same counterparty. Either counterparty can generally request to net settle all contracts through a single payment upon default on, or termination of, any one contract. We elect to offset the derivative assets and liabilities under netting arrangements for balance sheet presentation where a right of setoff exists. For derivative contracts entered into under master netting arrangements for which we have not been able to confirm the enforceability of the setoff rights, or those not subject to master netting arrangements, we do not offset our derivative positions for balance sheet presentation.

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment

Useful lives for premises and equipment are estimated as follows:



Premises and Equipment		Useful Lives
Buildings and improvements		5-39 years
Furniture and equipment		3-10 years
Computer software		3 years
Leasehold improvements		Lesser of the useful life or the remaining fixed non-cancelable lease term

The following table presents our premises and equipment as of December 31, 2018 and 2017.Table 8.1: Components of Premises and Equipment



	December 31,
(Dollars in millions)	2018			2017
Land	$	386		$	406
Buildings and improvements	3,994			3,302
Furniture and equipment	2,018			1,901
Computer software	1,847			1,753
In progress	482			902
Total premises and equipment, gross	8,727			8,264
Less: Accumulated depreciation and amortization	(4,536		)	(4,231		)
Total premises and equipment, net	$	4,191		$	4,033

Investment Securities (Tables)

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-Sale Securities

The table below presents the amortized cost, gross unrealized gains and losses, and fair value of securities available for sale as of December 31, 2018 and 2017.

Table 3.1: Investment Securities Available for Sale



	December 31, 2018
(Dollars in millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Investment securities available for sale:
U.S. Treasury securities	$	6,146	$	15	$	(17	)	$	6,144
RMBS:
Agency	32,710		62		(869		)	31,903
Non-agency	1,440		304		(2		)	1,742
Total RMBS	34,150		366		(871		)	33,645
Agency CMBS	4,806		11		(78		)	4,739
Other securities⁽¹⁾	1,626		2		(6		)	1,622
Total investment securities available for sale	$	46,728	$	394	$	(972	)	$	46,150



	December 31, 2017
(Dollars in millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Investment securities available for sale:
U.S. Treasury securities	$	5,168	$	11	$	(8	)	$	5,171
RMBS:
Agency	26,013		67		(402		)	25,678
Non-agency	1,722		393		(1		)	2,114
Total RMBS	27,735		460		(403		)	27,792
Agency CMBS	3,209		10		(44		)	3,175
Other securities⁽¹⁾	1,516		4		(3		)	1,517
Total investment securities available for sale	$	37,628	$	485	$	(458	)	$	37,655

__________

⁽¹⁾

Includes primarily supranational bonds, foreign government bonds and other asset-backed securities.

Investment Securities Held to Maturity



	December 31, 2018
(Dollars in millions)	Amortized Cost		Unrealized Losses Recorded in AOCI			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Agency RMBS	$	33,299	$	(238	)	$	33,061	$	293	$	(377	)	$	32,977
Agency CMBS	3,723		(13		)	3,710		21		(89		)	3,642
Total investment securities held to maturity	$	37,022	$	(251	)	$	36,771	$	314	$	(466	)	$	36,619



	December 31, 2017
(Dollars in millions)	Amortized Cost		Unrealized Losses Recorded in AOCI			Carrying Value		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury securities	$	200	$	0		$	200	$	0	$	0		$	200
Agency RMBS	25,741		(761		)	24,980		565		(150		)	25,395
Agency CMBS	3,882		(78		)	3,804		70		(32		)	3,842
Total investment securities held to maturity	$	29,823	$	(839	)	$	28,984	$	635	$	(182	)	$	29,437

Schedule of Available-for-Sale Securities in Gross Unrealized Loss Position



	December 31, 2018
	Less than 12 Months					12 Months or Longer					Total
(Dollars in millions)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Investment securities available for sale:
U.S. Treasury securities	$	2,543	$	(3	)	$	1,076	$	(14	)	$	3,619	$	(17	)
RMBS:
Agency	7,863		(260		)	18,118		(609		)	25,981		(869		)
Non-agency	89		(2		)	10		0			99		(2		)
Total RMBS	7,952		(262		)	18,128		(609		)	26,080		(871		)
Agency CMBS	2,004		(31		)	1,540		(47		)	3,544		(78		)
Other securities	244		(1		)	678		(5		)	922		(6		)
Total investment securities available for sale in a gross unrealized loss position	$	12,743	$	(297	)	$	21,422	$	(675	)	$	34,165	$	(972	)



	December 31, 2017
	Less than 12 Months					12 Months or Longer					Total
(Dollars in millions)	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
Investment securities available for sale:
U.S. Treasury securities	$	2,031	$	(8	)	$	0	$	0		$	2,031	$	(8	)
RMBS:
Agency	8,192		(67		)	13,175		(335		)	21,367		(402		)
Non-agency	10		0			10		(1		)	20		(1		)
Total RMBS	8,202		(67		)	13,185		(336		)	21,387		(403		)
Agency CMBS	880		(8		)	1,236		(36		)	2,116		(44		)
Other securities	501		(2		)	95		(1		)	596		(3		)
Total investment securities available for sale in a gross unrealized loss position	$	11,614	$	(85	)	$	14,516	$	(373	)	$	26,130	$	(458	)

Schedule of Contractual Maturities for Securities

Table 3.4: Contractual Maturities and Weighted-Average Yields of Securities



	December 31, 2018
(Dollars in millions)	Due in 1 Year or Less			Due > 1 Year through 5 Years			Due > 5 Years through 10 Years			Due > 10 Years			Total
Fair value of securities available for sale:
U.S. Treasury securities	$	447		$	784		$	4,913		$	0		$	6,144
RMBS⁽¹⁾:
Agency	6			23			724			31,150			31,903
Non-agency	0			0			0			1,742			1,742
Total RMBS	6			23			724			32,892			33,645
Agency CMBS⁽¹⁾	7			1,778			1,687			1,267			4,739
Other securities	233			1,027			342			20			1,622
Total securities available for sale	$	693		$	3,612		$	7,666		$	34,179		$	46,150
Amortized cost of securities available for sale	$	695		$	3,642		$	7,680		$	34,711		$	46,728
Weighted-average yield for securities available for sale	1.46		%	2.29		%	2.49		%	2.95		%	2.80		%
Carrying value of securities held to maturity:
Agency RMBS⁽¹⁾	$	0		$	0		$	51		$	33,010		$	33,061
Agency CMBS⁽¹⁾	0			69			449			3,192			3,710
Total securities held to maturity	$	0		$	69		$	500		$	36,202		$	36,771
Fair value of securities held to maturity	$	0		$	70		$	487		$	36,062		$	36,619
Weighted-average yield for securities held to maturity	0.00		%	3.53		%	2.95		%	3.31		%	3.30		%

__________


⁽¹⁾	As of December 31, 2018, the weighted-average expected maturities of RMBS and CMBS are 6.6 years and 5.3 years, respectively.

Schedule of Gross Realized Gains and Losses on Sale of Available-for-Sale Securities Recognized in Earnings

Table 3.5: Realized Gains (Losses) on Securities and OTTI Recognized in Earnings



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Realized gains (losses):
Gross realized gains	$	13		$	144		$	12
Gross realized losses	(21		)	(74		)	(6		)
Net realized gains (losses)	(8		)	70			6
OTTI recognized in earnings:
Credit-related OTTI	(1		)	(2		)	(11		)
Intent-to-sell OTTI	(200		)	(3		)	(6		)
Total OTTI recognized in earnings	(201		)	(5		)	(17		)
Net securities gains (losses)	$	(209	)	$	65		$	(11	)
Total proceeds from sales	$	6,399		$	8,181		$	4,146

Schedule of Outstanding Contractual Balance and Carrying Value of Credit-Impaired Debt Securities

The table below presents the outstanding balance and carrying value of the purchased credit-impaired debt securities as of December 31, 2018 and 2017.

Table 3.6: Outstanding Balance and Carrying Value of Purchased Credit-Impaired Debt Securities



(Dollars in millions)	December 31, 2018		December 31, 2017
Outstanding balance	$	1,784	$	2,131
Carrying value	1,537		1,843

Schedule of Changes in Accretable Yield of Acquired Securities

The following table presents changes in the accretable yield related to the purchased credit-impaired debt securities for the years ended December 31, 2018, 2017 and 2016.Table 3.7: Changes in the Accretable Yield of Purchased Credit-Impaired Debt Securities



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Accretable yield, beginning of period	$	826		$	1,173		$	1,237
Accretion recognized in earnings	(153		)	(182		)	(206		)
Reduction due to payoffs, disposals, transfers and other	(3		)	(157		)	(2		)
Net reclassifications (to) from nonaccretable difference	28			(8		)	144
Accretable yield, end of period	$	698		$	826		$	1,173

Loans (Tables)

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Loan Portfolio Composition and Aging Analysis

The table below presents the composition and an aging analysis of our loans held for investment portfolio as of December 31, 2018 and 2017. The delinquency aging includes all past due loans, both performing and nonperforming.

Table 4.1: Loan Portfolio Composition and Aging Analysis



	December 31, 2018
(Dollars in millions)	Current			30-59 Days			60-89 Days			> 90 Days			Total Delinquent Loans			PCI Loans			Total Loans
Credit Card:
Domestic credit card	$	103,014		$	1,270		$	954		$	2,111		$	4,335		$	1		$	107,350
International card businesses	8,678			127			78			128			333			0			9,011
Total credit card	111,692			1,397			1,032			2,239			4,668			1			116,361
Consumer Banking:
Auto	52,032			2,624			1,326			359			4,309			0			56,341
Retail banking	2,809			23			8			20			51			4			2,864
Total consumer banking	54,841			2,647			1,334			379			4,360			4			59,205
Commercial Banking:
Commercial and multifamily real estate	28,737			101			20			19			140			22			28,899
Commercial and industrial	40,704			135			43			101			279			108			41,091
Total commercial lending	69,441			236			63			120			419			130			69,990
Small-ticket commercial real estate	336			2			1			4			7			0			343
Total commercial banking	69,777			238			64			124			426			130			70,333
Total loans⁽¹⁾	$	236,310		$	4,282		$	2,430		$	2,742		$	9,454		$	135		$	245,899
% of Total loans	96.1		%	1.7		%	1.0		%	1.1		%	3.8		%	0.1		%	100.0		%



	December 31, 2017
(Dollars in millions)	Current			30-59 Days			60-89 Days			> 90 Days			Total Delinquent Loans			PCI Loans			Total Loans
Credit Card:
Domestic credit card	$	101,072		$	1,211		$	915		$	2,093		$	4,219		$	2		$	105,293
International card businesses	9,110			144			81			134			359			0			9,469
Total credit card	110,182			1,355			996			2,227			4,578			2			114,762
Consumer Banking:
Auto	50,151			2,483			1,060			297			3,840			0			53,991
Home loan	7,235			37			16			70			123			10,275			17,633
Retail banking	3,389			24			5			18			47			18			3,454
Total consumer banking	60,775			2,544			1,081			385			4,010			10,293			75,078
Commercial Banking:
Commercial and multifamily real estate	26,018			41			17			49			107			25			26,150
Commercial and industrial	37,412			1			70			87			158			455			38,025
Total commercial lending	63,430			42			87			136			265			480			64,175
Small-ticket commercial real estate	393			2			1			4			7			0			400
Total commercial banking	63,823			44			88			140			272			480			64,575
Other loans	54			2			1			1			4			0			58
Total loans⁽¹⁾	$	234,834		$	3,945		$	2,166		$	2,753		$	8,864		$	10,775		$	254,473
% of Total loans	92.3		%	1.5		%	0.9		%	1.1		%	3.5		%	4.2		%	100.0		%

__________

⁽¹⁾

Loans, other than PCI loans, include unamortized premiums and discounts, and unamortized deferred fees and costs totaling $818 million and $773 million as of December 31, 2018 and 2017, respectively.

90 Plus Day Delinquent Loans Accruing Interest and Nonperforming Loans

The following table presents the outstanding balance of loans 90 days or more past due that continue to accrue interest and loans classified as nonperforming as of December 31, 2018 and 2017. Nonperforming loans generally include loans that have been placed on nonaccrual status. PCI loans are excluded from the table below.

Table 4.2: 90+ Day Delinquent Loans Accruing Interest and Nonperforming Loans



	December 31, 2018				December 31, 2017
(Dollars in millions)	> 90 Days and Accruing		Nonperforming Loans		> 90 Days and Accruing		Nonperforming Loans
Credit Card:
Domestic credit card	$	2,111	N/A		$	2,093	N/A
International card businesses	122		$	22	128		$	24
Total credit card	2,233		22		2,221		24
Consumer Banking:
Auto	0		449		0		376
Home loan	0		0		0		176
Retail banking	0		30		0		35
Total consumer banking	0		479		0		587



	December 31, 2018						December 31, 2017
(Dollars in millions)	> 90 Days and Accruing			Nonperforming Loans			> 90 Days and Accruing			Nonperforming Loans
Commercial Banking:
Commercial and multifamily real estate	$	0		$	83		$	12		$	38
Commercial and industrial	0			223			0			239
Total commercial lending	0			306			12			277
Small-ticket commercial real estate	0			6			0			7
Total commercial banking	0			312			12			284
Other loans	0			0			0			4
Total	$	2,233		$	813		$	2,233		$	899
% of Total loans held for investment	0.91		%	0.33		%	0.88		%	0.35		%

Loans and Leases Receivable Disclosure [Line Items]

Impaired Financing Receivables [Table Text Block]

Table 4.8: Impaired Loans



	December 31, 2018
(Dollars in millions)	With an Allowance		Without an Allowance		Total Recorded Investment		Related Allowance		Net Recorded Investment		Unpaid Principal Balance
Credit Card:
Domestic credit card	$	666	$	0	$	666	$	186	$	480	$	654
International card businesses	189		0		189		91		98		183
Total credit card⁽¹⁾	855		0		855		277		578		837
Consumer Banking:
Auto⁽²⁾	301		38		339		22		317		420
Retail banking	42		12		54		5		49		60
Total consumer banking	343		50		393		27		366		480
Commercial Banking:
Commercial and multifamily real estate	92		28		120		5		115		121
Commercial and industrial	301		169		470		29		441		593
Total commercial lending	393		197		590		34		556		714
Small-ticket commercial real estate	0		6		6		0		6		9
Total commercial banking	393		203		596		34		562		723
Total	$	1,591	$	253	$	1,844	$	338	$	1,506	$	2,040



	December 31, 2017
(Dollars in millions)	With an Allowance		Without an Allowance		Total Recorded Investment		Related Allowance		Net Recorded Investment		Unpaid Principal Balance
Credit Card:
Domestic credit card	$	639	$	0	$	639	$	208	$	431	$	625
International card businesses	173		0		173		84		89		167
Total credit card⁽¹⁾	812		0		812		292		520		792
Consumer Banking:
Auto⁽²⁾	363		118		481		30		451		730
Home loan	192		41		233		15		218		298
Retail banking	51		10		61		8		53		66
Total consumer banking	606		169		775		53		722		1,094
Commercial Banking:
Commercial and multifamily real estate	138		2		140		13		127		143
Commercial and industrial	489		222		711		63		648		844
Total commercial lending	627		224		851		76		775		987
Small-ticket commercial real estate	7		0		7		0		7		9
Total commercial banking	634		224		858		76		782		996
Total	$	2,052	$	393	$	2,445	$	421	$	2,024	$	2,882



	Year Ended December 31,
	2018				2017				2016
(Dollars in millions)	Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized		Average Recorded Investment		Interest Income Recognized
Credit Card:
Domestic credit card	$	655	$	63	$	602	$	63	$	540	$	58
International card businesses	184		12		154		11		133		10
Total credit card⁽¹⁾	839		75		756		74		673		68
Consumer Banking:
Auto⁽²⁾	397		45		495		53		501		86
Home loan	91		1		299		5		361		5
Retail banking	59		2		59		1		62		2
Total consumer banking	547		48		853		59		924		93
Commercial Banking:
Commercial and multifamily real estate	93		2		134		4		111		3
Commercial and industrial	621		20		1,118		18		1,215		13
Total commercial lending	714		22		1,252		22		1,326		16
Small-ticket commercial real estate	5		0		7		0		7		0
Total commercial banking	719		22		1,259		22		1,333		16
Total	$	2,105	$	145	$	2,868	$	155	$	2,930	$	177

__________


⁽¹⁾	The period-end and average recorded investments of credit card loans include finance charges and fees.

⁽²⁾

Includes certain TDRs that are recorded as other assets on our consolidated balance sheets.

TDR Disclosures in Progress Financial Impact of Modification

The following tables present the major modification types, recorded investment amounts and financial effects of loans modified in TDRs during the years ended December 31, 2018, 2017 and 2016.

Table 4.9: Troubled Debt Restructurings



	Total Loans Modified⁽¹⁾		Year Ended December 31, 2018
			Reduced Interest Rate				Term Extension			Balance Reduction
(Dollars in millions)			% of TDR Activity⁽²⁾		Average Rate Reduction		% of TDR Activity⁽²⁾		Average Term Extension (Months)	% of TDR Activity⁽²⁾		Gross Balance Reduction
Credit Card:
Domestic credit card	$	412	100	%	15.93	%	0	%	0	0	%	$	0
International card businesses	184		100		26.96		0		0	0		0
Total credit card	596		100		19.34		0		0	0		0
Consumer Banking:
Auto⁽³⁾	227		49		3.88		89		8	1		1
Home loan	6		28		1.78		83		214	0		0
Retail banking	8		16		10.92		43		12	0		0
Total consumer banking	241		48		3.93		87		13	1		1
Commercial Banking:
Commercial and multifamily real estate	43		0		0.00		80		5	0		0
Commercial and industrial	170		0		1.03		54		13	0		0
Total commercial lending	213		0		1.03		60		11	0		0
Small-ticket commercial real estate	3		0		0.00		0		0	0		0
Total commercial banking	216		0		1.03		59		11	0		0
Total	$	1,053	68		16.84		32		12	0		$	1



	Total Loans Modified⁽¹⁾		Year Ended December 31, 2017
			Reduced Interest Rate				Term Extension			Balance Reduction
(Dollars in millions)			% of TDR Activity⁽²⁾		Average Rate Reduction		% of TDR Activity⁽²⁾		Average Term Extension (Months)	% of TDR Activity⁽²⁾		Gross Balance Reduction
Credit Card:
Domestic credit card	$	406	100	%	14.50	%	0	%	0	0	%	$	0
International card businesses	169		100		26.51		0		0	0		0
Total credit card	575		100		18.02		0		0	0		0
Consumer Banking:
Auto⁽³⁾	324		44		3.82		95		6	2		7
Home loan	19		48		2.77		78		233	2		0
Retail banking	13		22		5.77		73		10	0		0
Total consumer banking	356		44		3.79		93		16	2		7
Commercial Banking:
Commercial and multifamily real estate	29		7		0.02		26		5	0		0
Commercial and industrial	557		19		0.80		59		17	0		0
Total commercial lending	586		18		0.79		57		16	0		0
Small-ticket commercial real estate	3		0		0.00		4		0	0		0
Total commercial banking	589		18		0.79		57		16	0		0
Total	$	1,520	55		13.19		44		16	0		$	7



	Total Loans Modified⁽¹⁾		Year Ended December 31, 2016
			Reduced Interest Rate				Term Extension			Balance Reduction
(Dollars in millions)			% of TDR Activity⁽²⁾		Average Rate Reduction		% of TDR Activity⁽²⁾		Average Term Extension (Months)	% of TDR Activity⁽²⁾		Gross Balance Reduction
Credit Card:
Domestic credit card	$	312	100	%	13.19	%	0	%	0	0	%	$	0
International card businesses	138		100		25.87		0		0	0		0
Total credit card	450		100		17.09		0		0	0		0
Consumer Banking:
Auto⁽³⁾	356		44		3.91		74		7	25		78
Home loan	48		64		2.25		87		243	2		0
Retail banking	18		23		7.89		68		10	9		1
Total consumer banking	422		46		3.73		75		38	22		79
Commercial Banking:
Commercial and multifamily real estate	38		0		0.00		67		6	32		3
Commercial and industrial	743		5		0.09		57		20	7		26
Total commercial lending	781		4		0.09		57		19	8		29
Small-ticket commercial real estate	1		0		0.00		0		0	0		0
Total commercial banking	782		4		0.09		57		19	8		29
Total	$	1,654	41		12.42		46		27	9		$	108

__________


⁽¹⁾	Represents the recorded investment of total loans modified in TDRs at the end of the quarter in which they were modified. As not every modification type is included in the table above, the total percentage of TDR activity may not add up to 100%. Some loans may receive more than one type of concession as part of the modification.


⁽²⁾	Due to multiple concessions granted to some troubled borrowers, percentages may total more than 100% for certain loan types.


⁽³⁾	Includes certain TDRs that are recorded as other assets on our consolidated balance sheets.

Subsequent Defaults of Completed TDR Modifications

Table 4.10: TDR—Subsequent Defaults



	Year Ended December 31,
	2018			2017			2016
(Dollars in millions)	Number of Contracts	Amount		Number of Contracts	Amount		Number of Contracts	Amount
Credit Card:
Domestic credit card	61,070	$	126	55,121	$	111	42,250	$	73
International card businesses	61,014	106		51,641	93		40,498	82
Total credit card	122,084	232		106,762	204		82,748	155
Consumer Banking:
Auto	6,980	79		9,446	109		8,587	96
Home loan	3	1		28	7		56	7
Retail banking	26	2		41	4		48	9
Total consumer banking	7,009	82		9,515	120		8,691	112
Commercial Banking:
Commercial and multifamily real estate	1	3		0	0		1	1
Commercial and industrial	26	120		244	269		150	281
Total commercial lending	27	123		244	269		151	282
Small-ticket commercial real estate	0	0		2	1		7	1
Total commercial banking	27	123		246	270		158	283
Total	129,120	$	437	116,523	$	594	91,597	$	550

Credit Card Portfolio Segment

Loans and Leases Receivable Disclosure [Line Items]

Schedule of Concentration Risk, by Risk Factor, Including Delinquency and Performing Status

The table below displays the geographic profile of our credit card loan portfolio as of December 31, 2018 and 2017. Table 4.3: Credit Card Risk Profile by Geographic Region



	December 31, 2018				December 31, 2017
(Dollars in millions)	Amount		% of Total		Amount		% of Total
Domestic credit card:
California	$	11,591	10.0	%	$	11,475	10.0	%
Texas	8,173		7.0		7,847		6.8
New York	7,400		6.4		7,389		6.4
Florida	7,086		6.1		6,790		5.9
Illinois	4,761		4.1		4,734		4.1
Pennsylvania	4,575		3.9		4,550		4.0
Ohio	3,967		3.4		3,929		3.4
New Jersey	3,641		3.1		3,621		3.2
Michigan	3,544		3.0		3,523		3.1
Other	52,612		45.3		51,435		44.8
Total domestic credit card	107,350		92.3		105,293		91.7
International card businesses:
Canada	6,023		5.1		6,286		5.5
United Kingdom	2,988		2.6		3,183		2.8
Total international card businesses	9,011		7.7		9,469		8.3
Total credit card	$	116,361	100.0	%	$	114,762	100.0	%

Schedule of Net Charge-Offs

The table below presents net charge-offs for the years ended December 31, 2018, 2017 and 2016.

Table 4.4: Credit Card Net Charge-Offs



	Year Ended December 31,
	2018				2017				2016
(Dollars in millions)	Amount		Rate⁽¹⁾		Amount		Rate⁽¹⁾		Amount		Rate⁽¹⁾
Net charge-offs:⁽¹⁾
Domestic credit card	$	4,782	4.74	%	$	4,739	4.99	%	$	3,681	4.16	%
International card businesses	287		3.19		315		3.69		272		3.33
Total credit card	$	5,069	4.62		$	5,054	4.88		$	3,953	4.09

__________

⁽¹⁾

Consumer Portfolio Segment

Loans and Leases Receivable Disclosure [Line Items]

Schedule of Concentration Risk, by Risk Factor, Including Delinquency and Performing Status

The table below displays the geographic profile of our consumer banking loan portfolio as of December 31, 2018 and 2017.Table 4.5: Consumer Banking Risk Profile by Geographic Region



	December 31, 2018				December 31, 2017
(Dollars in millions)	Amount		% of Total		Amount		% of Total
Auto:
Texas	$	7,264	12.3	%	$	7,040	9.4	%
California	6,352		10.7		6,099		8.1
Florida	4,623		7.8		4,486		6.0
Georgia	2,665		4.5		2,726		3.6
Ohio	2,502		4.2		2,318		3.1
Louisiana	2,174		3.7		2,236		3.0
Illinois	2,171		3.7		2,181		2.9
Pennsylvania	2,167		3.7		2,014		2.7
Other	26,423		44.6		24,891		33.1
Total auto	56,341		95.2		53,991		71.9
Retail banking:
New York	837		1.4		955		1.3
Louisiana	772		1.3		953		1.3
Texas	647		1.1		717		0.9
New Jersey	201		0.3		221		0.3
Maryland	161		0.3		187		0.2
Virginia	137		0.2		154		0.2
Other	109		0.2		267		0.4
Total retail banking	2,864		4.8		3,454		4.6
Total home loan	0		0.0		17,633		23.5
Total consumer banking	$	59,205	100.0	%	$	75,078	100.0	%

Schedule of Net Charge-Offs

The table below presents net charge-offs in our consumer banking loan portfolio for the years ended December 31, 2018, 2017 and 2016, as well as nonperforming loans as of December 31, 2018 and 2017.

Table 4.6: Consumer Banking Net Charge-Offs and Nonperforming Loans



	Year Ended December 31,
	2018					2017				2016
(Dollars in millions)	Amount			Rate⁽¹⁾		Amount		Rate⁽¹⁾		Amount		Rate⁽¹⁾
Net charge-offs (recoveries):
Auto	$	912		1.64	%	$	957	1.86	%	$	752	1.69	%
Home loan	(1		)	(0.02	)	15		0.08		14		0.06
Retail banking	70			2.26		66		1.92		54		1.53
Total consumer banking	$	981		1.51		$	1,038	1.39		$	820	1.15



	December 31, 2018				December 31, 2017
(Dollars in millions)	Amount		Rate⁽²⁾		Amount		Rate⁽²⁾
Nonperforming loans:
Auto	$	449	0.80	%	$	376	0.70	%
Home loan	0		0.00		176		1.00
Retail banking	30		1.04		35		1.00
Total consumer banking	$	479	0.81		$	587	0.78

__________


⁽¹⁾	Net charge-off (recovery) rate is calculated by dividing net charge-offs (recoveries) by average loans held for investment for the period for each loan category.

⁽²⁾

Nonperforming loan rates are calculated based on nonperforming loans for each category divided by period-end total loans held for investment for each respective category.

Commercial Banking

Loans and Leases Receivable Disclosure [Line Items]

Schedule of Concentration of Risk, by Risk Factor

The following table presents the geographic concentration and internal risk ratings of our commercial loan portfolio as of December 31, 2018 and 2017.

Table 4.7: Commercial Banking Risk Profile by Geographic Region and Internal Risk Rating



	December 31, 2018
(Dollars in millions)	Commercial and Multifamily Real Estate		% of Total		Commercial and Industrial		% of Total		Small-Ticket Commercial Real Estate		% of Total		Total Commercial Banking		% of Total
Geographic concentration:⁽¹⁾
Northeast	$	15,562	53.8	%	$	7,573	18.4	%	$	213	62.1	%	$	23,348	33.2	%
Mid-Atlantic	3,410		11.8		4,710		11.5		12		3.5		8,132		11.6
South	4,247		14.7		15,367		37.4		20		5.8		19,634		27.9
Other	5,680		19.7		13,441		32.7		98		28.6		19,219		27.3
Total	$	28,899	100.0	%	$	41,091	100.0	%	$	343	100.0	%	$	70,333	100.0	%
Internal risk rating:⁽²⁾
Noncriticized	$	28,239	97.7	%	$	39,468	96.1	%	$	336	98.0	%	$	68,043	96.8	%
Criticized performing	555		1.9		1,292		3.1		1		0.3		1,848		2.6
Criticized nonperforming	83		0.3		223		0.5		6		1.7		312		0.4
PCI loans	22		0.1		108		0.3		0		0.0		130		0.2
Total	$	28,899	100.0	%	$	41,091	100.0	%	$	343	100.0	%	$	70,333	100.0	%



	December 31, 2017
(Dollars in millions)	Commercial and Multifamily Real Estate		% of Total⁽¹⁾		Commercial and Industrial		% of Total		Small-Ticket Commercial Real Estate		% of Total		Total Commercial Banking		% of Total
Geographic concentration:⁽¹⁾
Northeast	$	14,969	57.3	%	$	7,774	20.4	%	$	250	62.4	%	$	22,993	35.7	%
Mid-Atlantic	2,675		10.2		3,922		10.3		15		3.8		6,612		10.2
South	3,719		14.2		14,739		38.8		22		5.5		18,480		28.6
Other	4,787		18.3		11,590		30.5		113		28.3		16,490		25.5
Total	$	26,150	100.0	%	$	38,025	100.0	%	$	400	100.0	%	$	64,575	100.0	%
Internal risk rating:⁽²⁾
Noncriticized	$	25,609	98.0	%	$	35,161	92.5	%	$	392	97.9	%	$	61,162	94.7	%
Criticized performing	478		1.8		2,170		5.7		1		0.3		2,649		4.1
Criticized nonperforming	38		0.1		239		0.6		7		1.8		284		0.4
PCI loans	25		0.1		455		1.2		0		0.0		480		0.8
Total	$	26,150	100.0	%	$	38,025	100.0	%	$	400	100.0	%	$	64,575	100.0	%

__________


⁽¹⁾	Geographic concentration is generally determined by the location of the borrower’s business or the location of the collateral associated with the loan. Northeast consists of CT, MA, ME, NH, NJ, NY, PA and VT. Mid-Atlantic consists of DC, DE, MD, VA and WV. South consists of AL, AR, FL, GA, KY, LA, MO, MS, NC, SC, TN and TX.

⁽²⁾

Criticized exposures correspond to the “Special Mention,” “Substandard” and “Doubtful” asset categories defined by bank regulatory authorities.

Allowance for Loan and Lease Losses (Tables)

12 Months Ended

Dec. 31, 2018

Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]

Allowance for Credit Losses on Financing Receivables

The table below summarizes changes in the allowance for loan and lease losses and reserve for unfunded lending commitments by portfolio segment for the years ended December 31, 2018, 2017 and 2016.

Table 5.1: Allowance for Loan and Lease Losses and Reserve for Unfunded Lending Commitments Activity



(Dollars in millions)	Credit Card			Consumer Banking			Commercial Banking			Other⁽¹⁾⁽²⁾			Total
Allowance for loan and lease losses:
Balance as of December 31, 2015	$	3,654		$	868		$	604		$	4		$	5,130
Charge-offs	(5,019		)	(1,226		)	(307		)	(3		)	(6,555		)
Recoveries⁽³⁾	1,066			406			15			6			1,493
Net charge-offs	(3,953		)	(820		)	(292		)	3			(5,062		)
Provision (benefit) for loan and lease losses	4,926			1,055			515			(5		)	6,491
Allowance build (release) for loan and lease losses	973			235			223			(2		)	1,429
Other changes⁽⁴⁾	(21		)	(1		)	(34		)	0			(56		)
Balance as of December 31, 2016	4,606			1,102			793			2			6,503
Reserve for unfunded lending commitments:
Balance as of December 31, 2015	0			7			161			0			168
Benefit for losses on unfunded lending commitments	0			0			(32		)	0			(32		)
Balance as of December 31, 2016	0			7			129			0			136
Combined allowance and reserve as of December 31, 2016	$	4,606		$	1,109		$	922		$	2		$	6,639
Allowance for loan and lease losses:
Balance as of December 31, 2016	$	4,606		$	1,102		$	793		$	2		$	6,503
Charge-offs	(6,321		)	(1,677		)	(481		)	(34		)	(8,513		)
Recoveries⁽³⁾	1,267			639			16			29			1,951
Net charge-offs	(5,054		)	(1,038		)	(465		)	(5		)	(6,562		)
Provision for loan and lease losses	6,066			1,180			313			4			7,563
Allowance build (release) for loan and lease losses	1,012			142			(152		)	(1		)	1,001
Other changes⁽⁴⁾	30			(2		)	(30		)	0			(2		)
Balance as of December 31, 2017	5,648			1,242			611			1			7,502
Reserve for unfunded lending commitments:
Balance as of December 31, 2016	0			7			129			0			136
Benefit for losses on unfunded lending commitments	0			0			(12		)	0			(12		)
Balance as of December 31, 2017	0			7			117			0			124
Combined allowance and reserve as of December 31, 2017	$	5,648		$	1,249		$	728		$	1		$	7,626



(Dollars in millions)	Credit Card			Consumer Banking			Commercial Banking			Other⁽¹⁾⁽²⁾			Total
Allowance for loan and lease losses:
Balance as of December 31, 2017	$	5,648		$	1,242		$	611		$	1		$	7,502
Charge-offs	(6,657		)	(1,832		)	(119		)	(7		)	(8,615		)
Recoveries⁽³⁾	1,588			851			63			1			2,503
Net charge-offs	(5,069		)	(981		)	(56		)	(6		)	(6,112		)
Provision (benefit) for loan and lease losses	4,984			841			82			(49		)	5,858
Allowance build (release) for loan and lease losses	(85		)	(140		)	26			(55		)	(254		)
Other changes⁽¹⁾⁽⁴⁾	(28		)	(54		)	0			54			(28		)
Balance as of December 31, 2018	5,535			1,048			637			0			7,220
Reserve for unfunded lending commitments:
Balance as of December 31, 2017	0			7			117			0			124
Provision (benefit) for losses on unfunded lending commitments	0			(3		)	1			0			(2		)
Balance as of December 31, 2018	0			4			118			0			122
Combined allowance and reserve as of December 31, 2018	$	5,535		$	1,052		$	755		$	0		$	7,342

__________


⁽¹⁾	In 2018, we sold all of our consumer home loan portfolio and recognized a gain of approximately $499 million in the Other category, including a benefit for credit losses of $46 million.


⁽²⁾	Includes the legacy loan portfolio of our discontinued GreenPoint mortgage operations.


⁽³⁾	The amount and timing of recoveries is impacted by our collection strategies, which are based on customer behavior and risk profile and include direct customer communications, repossession of collateral, the periodic sale of charged-off loans as well as additional strategies, such as litigation.

⁽⁴⁾

Represents foreign currency translation adjustments and the net impact of loan transfers and sales where applicable. The table below presents the components of our allowance for loan and lease losses by portfolio segment and impairment methodology as of December 31, 2018 and 2017. See “Note 1—Summary of Significant Accounting Policies” for further discussion of allowance methodologies for each of the loan portfolios.

Table 5.2: Components of Allowance for Loan and Lease Losses by Impairment Methodology



	December 31, 2018
(Dollars in millions)	Credit Card			Consumer Banking			Commercial Banking			Total
Allowance for loan and lease losses:
Collectively evaluated	$	5,258		$	1,021		$	603		$	6,882
Asset-specific	277			27			34			338
Total allowance for loan and lease losses	$	5,535		$	1,048		$	637		$	7,220
Loans held for investment:
Collectively evaluated	$	115,505		$	58,808		$	69,607		$	243,920
Asset-specific	855			393			596			1,844
PCI loans	1			4			130			135
Total loans held for investment	$	116,361		$	59,205		$	70,333		$	245,899
Allowance coverage ratio⁽¹⁾	4.76		%	1.77		%	0.91		%	2.94		%



	December 31, 2017
(Dollars in millions)	Credit Card			Consumer Banking			Commercial Banking			Other			Total
Allowance for loan and lease losses:
Collectively evaluated	$	5,356		$	1,158		$	529		$	1		$	7,044
Asset-specific	292			53			76			0			421
PCI loans	0			31			6			0			37
Total allowance for loan and lease losses	$	5,648		$	1,242		$	611		$	1		$	7,502
Loans held for investment:
Collectively evaluated	$	113,948		$	64,080		$	63,237		$	58		$	241,323
Asset-specific	812			705			858			0			2,375
PCI loans	2			10,293			480			0			10,775
Total loans held for investment	$	114,762		$	75,078		$	64,575		$	58		$	254,473
Allowance coverage ratio⁽¹⁾	4.92		%	1.65		%	0.95		%	1.72		%	2.95		%

__________

⁽¹⁾

Allowance coverage ratio is calculated by dividing the period-end allowance for loan and lease losses by period-end loans held for investment within the specified loan category.

Schedule of Loss sharing arrangement impact

The table below summarizes the changes in the estimated reimbursements from these partners for the years ended December 31, 2018, 2017 and 2016.Table 5.3: Summary of Loss Sharing Arrangements Impacts



(Dollars in millions)	Estimated Reimbursements from Loss Sharing Partners
Balance as of December 31, 2015	$	194
Amounts due from partners which reduced net charge-offs	(229		)
Amounts estimated to be charged to partners which reduced provision for credit losses	263
Balance as of December 31, 2016	228
Amounts due from partners which reduced net charge-offs	(285		)
Amounts estimated to be charged to partners which reduced provision for credit losses	437
Balance as of December 31, 2017	380
Amounts due from partners which reduced net charge-offs	(382		)
Amounts estimated to be charged to partners which reduced provision for credit losses	381
Balance as of December 31, 2018	$	379

Variable Interest Entities and Securitizations (Tables)

12 Months Ended

Dec. 31, 2018

Variable Interest Entities and Securitization [Abstract]

Carrying Amount of Assets and Liabilities of Variable Interest Entities

Table 6.1: Carrying Amount of Consolidated and Unconsolidated VIEs



	December 31, 2018
	Consolidated				Unconsolidated
(Dollars in millions)	Carrying Amount of Assets		Carrying Amount of Liabilities		Carrying Amount of Assets		Carrying Amount of Liabilities		Maximum Exposure to Loss
Securitization-Related VIEs:
Credit card loan securitizations⁽¹⁾	$	33,574	$	18,885	$	0	$	0	$	0
Home loan securitizations	0		0		211		74		554
Total securitization-related VIEs	33,574		18,885		211		74		554
Other VIEs:⁽²⁾
Affordable housing entities	243		17		4,238		1,303		4,238
Entities that provide capital to low-income and rural communities	1,739		117		0		0		0
Other	0		0		353		0		353
Total other VIEs	1,982		134		4,591		1,303		4,591
Total VIEs	$	35,556	$	19,019	$	4,802	$	1,377	$	5,145



	December 31, 2017
	Consolidated				Unconsolidated
(Dollars in millions)	Carrying Amount of Assets		Carrying Amount of Liabilities		Carrying Amount of Assets		Carrying Amount of Liabilities		Maximum Exposure to Loss
Securitization-Related VIEs:
Credit card loan securitizations⁽¹⁾	$	34,976	$	20,651	$	0	$	0	$	0
Home loan securitizations	0		0		455		390		1,057
Total securitization-related VIEs	34,976		20,651		455		390		1,057
Other VIEs:⁽²⁾
Affordable housing entities	226		10		4,175		1,284		4,175
Entities that provide capital to low-income and rural communities	1,498		129		0		0		0
Other	0		0		318		0		318
Total other VIEs	1,724		139		4,493		1,284		4,493
Total VIEs	$	36,700	$	20,790	$	4,948	$	1,674	$	5,550

__________


⁽¹⁾	Represents the carrying amount of assets and liabilities owned by the VIE, which includes the seller’s interest and repurchased notes held by other related parties.

⁽²⁾

External Debt and Receivable Balances of Securitization Programs

The table below presents our continuing involvement in certain securitization-related VIEs as of December 31, 2018 and 2017.

Table 6.2: Continuing Involvement in Securitization-Related VIEs



(Dollars in millions)	Credit Card		Mortgages
December 31, 2018:
Securities held by third-party investors	$	18,307	$	1,276
Receivables in the trust	34,197		1,305
Cash balance of spread or reserve accounts	0		116
Retained interests	Yes		Yes
Servicing retained	Yes		Yes⁽¹⁾
December 31, 2017:
Securities held by third-party investors	$	20,010	$	1,774
Receivables in the trust	35,667		1,812
Cash balance of spread or reserve accounts	0		124
Retained interests	Yes		Yes
Servicing retained	Yes		Yes⁽¹⁾

__________


⁽¹⁾	We retain servicing on a portion of our remaining mortgage loans in mortgage securitizations.

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

+ References + Details

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Goodwill, Intangible Assets and MSRs

Table 7.1: Components of Goodwill, Intangible Assets and MSRs



	December 31, 2018
(Dollars in millions)	Carrying Amount of Assets		Accumulated Amortization			Net Carrying Amount		Remaining Amortization Period
Goodwill	$	14,544	N/A			$	14,544	N/A
Intangible assets:
Purchased credit card relationship (“PCCR”) intangibles	2,102		$	(1,952	)	150		3.7 years
Core deposit intangibles	1,149		(1,148		)	1		0.2 years
Other⁽¹⁾	271		(168		)	103		7.1 years
Total intangible assets	3,522		(3,268		)	254		5.0 years
Total goodwill and intangible assets	$	18,066	$	(3,268	)	$	14,798
Commercial MSRs⁽²⁾	$	459	$	(185	)	$	274

	December 31, 2017
(Dollars in millions)	Carrying Amount of Assets		Accumulated Amortization			Net Carrying Amount		Remaining Amortization Period
Goodwill	$	14,533	N/A			$	14,533	N/A
Intangible assets:
PCCR intangibles	2,105		$	(1,844	)	261		3.6 years
Core deposit intangibles	1,149		(1,133		)	16		1.0 years
Other⁽¹⁾	300		(156		)	144		7.8 years
Total intangible assets	3,554		(3,133		)	421		4.9 years
Total goodwill and intangible assets	$	18,087	$	(3,133	)	$	14,954
MSRs:
Consumer MSRs⁽³⁾	$	92	N/A			$	92
Commercial MSRs⁽²⁾	355		$	(126	)	229
Total MSRs	$	447	$	(126	)	$	321

__________


⁽¹⁾	Primarily consists of intangibles for sponsorship relationships, partnership and other contract intangibles and trade name intangibles.


⁽²⁾	Commercial MSRs are accounted for under the amortization method on our consolidated balance sheets. We recorded $59 million and $44 million of amortization expense for the years ended December 31, 2018 and 2017, respectively.

⁽³⁾

Consumer MSRs were carried at fair value on our consolidated balance sheets as of December 31, 2017. In the first quarter of 2018, we sold the substantial majority of these MSRs.

Goodwill Attributable to Business Segments

Table 7.2: Goodwill by Business Segments



(Dollars in millions)	Credit Card			Consumer Banking		Commercial Banking			Total
Balance as of December 31, 2015	$	4,997		$	4,600	$	4,883		$	14,480
Acquisitions	36			0		18			54
Other adjustments⁽¹⁾	(15		)	0		0			(15		)
Balance as of December 31, 2016	5,018			4,600		4,901			14,519
Acquisitions	6			0		0			6
Other adjustments⁽¹⁾	8			0		0			8
Balance as of December 31, 2017	5,032			4,600		4,901			14,533
Acquisitions	33			0		0			33
Reductions in goodwill related to divestitures	0			0		(17		)	(17		)
Other adjustments⁽¹⁾	(5		)	0		0			(5		)
Balance as of December 31, 2018	$	5,060		$	4,600	$	4,884		$	14,544

__________


⁽¹⁾	Represents foreign currency translation adjustments.

Schedule of Finite-Lived Intangible Assets Amortization Expenses and Future Amortization Expense

The following table summarizes the actual amortization expense recorded for the years ended December 31, 2018, 2017 and 2016 and the estimated future amortization expense for intangible assets as of December 31, 2018:Table 7.3: Amortization Expense



(Dollars in millions)	Amortization Expense
Actual for the year ended December 31,
2016	$	386
2017	245
2018	174
Estimated future amounts for the year ended December 31,
2019	109
2020	58
2021	28
2022	20
2023	14
Thereafter	17
Total estimated future amounts	$	246

Premises, Equipment & Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2018

Property, Plant and Equipment and Lease Commitments [Abstract]

Schedule of Property, Plant and Equipment

Useful lives for premises and equipment are estimated as follows:



Premises and Equipment		Useful Lives
Buildings and improvements		5-39 years
Furniture and equipment		3-10 years
Computer software		3 years
Leasehold improvements		Lesser of the useful life or the remaining fixed non-cancelable lease term

The following table presents our premises and equipment as of December 31, 2018 and 2017.Table 8.1: Components of Premises and Equipment



	December 31,
(Dollars in millions)	2018			2017
Land	$	386		$	406
Buildings and improvements	3,994			3,302
Furniture and equipment	2,018			1,901
Computer software	1,847			1,753
In progress	482			902
Total premises and equipment, gross	8,727			8,264
Less: Accumulated depreciation and amortization	(4,536		)	(4,231		)
Total premises and equipment, net	$	4,191		$	4,033

Schedule of Future Minimum Rental Payments for Operating Leases

Future minimum rental commitments as of December 31, 2018, for all non-cancellable operating leases with initial or remaining terms of one year or more are as follows:Table 8.2: Lease Commitments



(Dollars in millions)	Estimated Future Minimum Rental Commitments
2019	$	352
2020	309
2021	279
2022	249
2023	213
Thereafter	949
Total	$	2,351

Deposits and Borrowings (Tables)

12 Months Ended

Dec. 31, 2018

Deposits and Borrowings [Abstract]

Components of Deposits, Short-term Borrowings and Long-term Debt

Table 9.1: Components of Deposits, Short-Term Borrowings and Long-Term Debt



(Dollars in millions)	December 31, 2018		December 31, 2017
Deposits:
Non-interest-bearing deposits	$	23,483	$	26,404
Interest-bearing deposits⁽¹⁾	226,281		217,298
Total deposits	$	249,764	$	243,702
Short-term borrowings:
Federal funds purchased and securities loaned or sold under agreements to repurchase	$	352	$	576
FHLB advances	9,050		0
Total short-term borrowings	$	9,402	$	576



	December 31, 2018						December 31, 2017
(Dollars in millions)	Maturity Dates	Stated Interest Rates	Weighted- Average Interest Rate		Carrying Value		Carrying Value
Long-term debt:
Securitized debt obligations	2019-2025	1.33 - 3.31%	2.31	%	$	18,307	$	20,010
Senior and subordinated notes:
Fixed unsecured senior debt	2019-2028	1.85 - 4.75	3.03		23,290		22,776
Floating unsecured senior debt	2019-2023	2.97 - 3.72	3.39		2,993		3,446
Total unsecured senior debt			3.08		26,283		26,222
Fixed unsecured subordinated debt	2019-2026	3.38 - 8.80	4.09		4,543		4,533
Total senior and subordinated notes					30,826		30,755
Other long-term borrowings:
FHLB advances	2020-2023	2.48 - 5.36	2.49		251		8,609
Other borrowings	2019-2035	1.00 - 13.63	6.16		119		331
Total other long-term borrowings					370		8,940
Total long-term debt					$	49,503	$	59,705
Total short-term borrowings and long-term debt					$	58,905	$	60,281

__________


⁽¹⁾	Includes $4.0 billion and $1.3 billion of time deposits in denominations in excess of the $250,000 federal insurance limit as of December 31, 2018 and 2017, respectively.

Schedule of Maturity Profile of Borrowings and Debt

The following table presents the carrying value of our interest-bearing time deposits, securitized debt obligations and other debt by remaining contractual maturity as of December 31, 2018.

Table 9.2: Maturity Profile of Borrowings



(Dollars in millions)	2019		2020		2021		2022		2023		Thereafter		Total
Interest-bearing time deposits	$	22,548	$	6,524	$	4,065	$	4,036	$	1,176	$	122	$	38,471
Securitized debt obligations	6,845		5,266		2,298		2,531		714		653		18,307
Federal funds purchased and securities loaned or sold under agreements to repurchase	352		0		0		0		0		0		352
Senior and subordinated notes	5,314		4,350		4,920		2,504		4,163		9,575		30,826
Other borrowings	9,060		310		6		6		5		33		9,420
Total	$	44,119	$	16,450	$	11,289	$	9,077	$	6,058	$	10,383	$	97,376

Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivative assets and liabilities at fair value

Table 10.1: Derivative Assets and Liabilities at Fair Value



	December 31, 2018								December 31, 2017
	Notional or Contractual Amount		Derivative⁽¹⁾⁽²⁾						Notional or Contractual Amount		Derivative⁽¹⁾
(Dollars in millions)	Notional or Contractual Amount		Assets			Liabilities			Notional or Contractual Amount		Assets			Liabilities
Derivatives designated as accounting hedges:
Interest rate contracts:
Fair value hedges	$	53,413	$	64		$	28		$	56,604	$	102		$	164
Cash flow hedges	81,200		83			70			77,300		30			125
Total interest rate contracts	134,613		147			98			133,904		132			289
Foreign exchange contracts:
Cash flow hedges	5,745		184			2			6,086		19			75
Net investment hedges	2,607		178			0			3,036		1			164
Total foreign exchange contracts	8,352		362			2			9,122		20			239
Total derivatives designated as accounting hedges	142,965		509			100			143,026		152			528
Derivatives not designated as accounting hedges:
Customer accommodation:
Interest rate contracts	49,386		190			256			39,429		316			221
Commodity contracts	10,673		797			786			8,111		518			496
Foreign exchange and other contracts	1,418		12			11			980		14			10
Total customer accommodation	61,477		999			1,053			48,520		848			727
Other interest rate exposures⁽³⁾	6,427		29			36			3,857		40			8
Other contracts	1,636		2			12			1,209		0			5
Total derivatives not designated as accounting hedges	69,540		1,030			1,101			53,586		888			740
Total derivatives	$	212,505	$	1,539		$	1,201		$	196,612	$	1,040		$	1,268
Less: netting adjustment⁽⁴⁾			(1,079		)	(287		)			(275		)	(662		)
Total derivative assets/liabilities			$	460		$	914				$	765		$	606

__________


⁽¹⁾	Derivative assets and liabilities presented above exclude valuation adjustments related to non-performance risk. As of December 31, 2018 and 2017, the cumulative CVA balances were $3 million and $2 million, respectively, and the cumulative DVA balances were approximately $1 million as of both December 31, 2018 and 2017.


⁽²⁾	Reflects a reduction in derivative assets of $431 million and a reduction in derivative liabilities of $397 million on our consolidated balance sheets as a result of adopting the LCH variation margin rule change in the first quarter of 2018.


⁽³⁾	Other interest rate exposures include commercial mortgage-related derivatives and interest rate swaps.

⁽⁴⁾

Represents balance sheet netting of derivative assets and liabilities, and related payables and receivables for cash collateral held or placed with the same counterparty.

Hedged item in fair value hedging relationship

Table 10.2: Hedged Items in Fair Value Hedging Relationships



	December 31, 2018
	Carrying Amount Assets/(Liabilities)			Cumulative Amount of Basis Adjustments Included in the Carrying Amount
(Dollars in millions)	Carrying Amount Assets/(Liabilities)			Total Assets/(Liabilities)			Discontinued-Hedging Relationships
Line item on our consolidated balance sheets in which the hedged item is included:
Investment securities available for sale⁽¹⁾⁽²⁾	$	14,067		$	(6	)	$	(2	)
Interest-bearing deposits	(13,101		)	247			0
Securitized debt obligations	(5,887		)	168			143
Senior and subordinated notes	(23,572		)	315			392

__________

⁽¹⁾

⁽²⁾

Carrying value represents amortized cost.

Offsetting Assets

Table 10.3: Offsetting of Financial Assets and Financial Liabilities



	Gross Amounts		Gross Amounts Offset in the Balance Sheet						Net Amounts as Recognized		Securities Collateral Held Under Master Netting Agreements
(Dollars in millions)	Gross Amounts		Financial Instruments			Cash Collateral Received			Net Amounts as Recognized		Securities Collateral Held Under Master Netting Agreements		Net Exposure
As of December 31, 2018
Derivative assets⁽¹⁾⁽²⁾	$	1,539	$	(205	)	$	(874	)	$	460	$	0	$	460
As of December 31, 2017
Derivative assets⁽¹⁾	1,040		(202		)	(73		)	765		0		765



	Gross Amounts		Gross Amounts Offset in the Balance Sheet						Net Amounts as Recognized		Securities Collateral Pledged Under Master Netting Agreements
(Dollars in millions)	Gross Amounts		Financial Instruments			Cash Collateral Pledged			Net Amounts as Recognized					Net Exposure
As of December 31, 2018
Derivative liabilities⁽¹⁾⁽²⁾	$	1,201	$	(205	)	$	(82	)	$	914	$	0		$	914
Repurchase agreements⁽³⁾	352		0			0			352		(352		)	0
As of December 31, 2017
Derivative liabilities⁽¹⁾	1,268		(202		)	(460		)	606		0			606
Repurchase agreements	576		0			0			576		(576		)	0

__________

⁽¹⁾


⁽²⁾	Reflects a reduction in derivative assets of $431 million and a reduction in derivative liabilities of $397 million on our consolidated balance sheets as a result of adopting the LCH variation margin rule change in the first quarter of 2018.

⁽³⁾

Represents customer repurchase agreements that mature the next business day. As of December 31, 2018, we pledged collateral with a fair value of $359 million under these customer repurchase agreements, which were primarily agency RMBS securities.

Offsetting Liabilities

Table 10.3: Offsetting of Financial Assets and Financial Liabilities



	Gross Amounts		Gross Amounts Offset in the Balance Sheet						Net Amounts as Recognized		Securities Collateral Held Under Master Netting Agreements
(Dollars in millions)	Gross Amounts		Financial Instruments			Cash Collateral Received			Net Amounts as Recognized		Securities Collateral Held Under Master Netting Agreements		Net Exposure
As of December 31, 2018
Derivative assets⁽¹⁾⁽²⁾	$	1,539	$	(205	)	$	(874	)	$	460	$	0	$	460
As of December 31, 2017
Derivative assets⁽¹⁾	1,040		(202		)	(73		)	765		0		765



	Gross Amounts		Gross Amounts Offset in the Balance Sheet						Net Amounts as Recognized		Securities Collateral Pledged Under Master Netting Agreements
(Dollars in millions)	Gross Amounts		Financial Instruments			Cash Collateral Pledged			Net Amounts as Recognized					Net Exposure
As of December 31, 2018
Derivative liabilities⁽¹⁾⁽²⁾	$	1,201	$	(205	)	$	(82	)	$	914	$	0		$	914
Repurchase agreements⁽³⁾	352		0			0			352		(352		)	0
As of December 31, 2017
Derivative liabilities⁽¹⁾	1,268		(202		)	(460		)	606		0			606
Repurchase agreements	576		0			0			576		(576		)	0

__________

⁽¹⁾


⁽²⁾	Reflects a reduction in derivative assets of $431 million and a reduction in derivative liabilities of $397 million on our consolidated balance sheets as a result of adopting the LCH variation margin rule change in the first quarter of 2018.

⁽³⁾

Effects of fair value and cash flow hedge accounting

Table 10.4: Effects of Fair Value and Cash Flow Hedge Accounting



	Year Ended December 31, 2018
	Net Interest Income																	Non-Interest Income
(Dollars in millions)	Investment Securities			Loans, Including Loans Held for Sale			Other		Deposits			Securitized Debt Obligations			Senior and Subordinated Notes			Other
Total amounts presented in our consolidated statements of income	$	2,211		$	24,728		$	237	$	(2,598	)	$	(496	)	$	(1,125	)	$	1,002
Fair value hedging relationships:
Interest rate contracts:
Interest recognized on derivatives	(23		)	0			0		(76		)	(53		)	2			0
Gains (losses) recognized on derivatives	34			0			0		(60		)	(61		)	(212		)	0
Gains (losses) recognized on hedged items⁽¹⁾	(33		)	0			0		52			38			131			0
Net income (expense) recognized on fair value hedges	(22		)	0			0		(84		)	(76		)	(79		)	0
Cash flow hedging relationships:⁽²⁾
Interest rate contracts:
Realized gains (losses) reclassified from AOCI into net income	(9		)	(82		)	0		0			0			0			0
Foreign exchange contracts:
Realized gains (losses) reclassified from AOCI into net income⁽³⁾	0			0			47		0			0			0			(2		)
Net income (expense) recognized on cash flow hedges	$	(9	)	$	(82	)	$	47	$	0		$	0		$	0		$	(2	)

__________


⁽¹⁾	Includes amortization expense of $75 million for the year ended December 31, 2018 related to basis adjustments on discontinued hedges.


⁽²⁾	See “Note 11—Stockholders’ Equity” for the effects of cash flow and net investment hedges on AOCI and amounts reclassified to net income, net of tax.


⁽³⁾	The amount recognized in non-interest income represents the net impact of $191 million of realized gains on foreign exchange contracts reclassified from AOCI into net income to offset $193 million of foreign currency transaction losses on our foreign currency denominated inter-company borrowings for the year ended December 31, 2018.



	Year Ended December 31,
(Dollars in millions)	2017			2016
Derivatives designated as fair value hedges:
Fair value interest rate contracts:
Gains (losses) recognized in net income on derivatives	$	(212	)	$	(613	)
Gains (losses) recognized in net income on hedged items	216			603
Net fair value hedge ineffectiveness gains (losses)	4			(10		)
Derivatives designated as cash flow hedges:
Gains (losses) reclassified from AOCI into net income:
Interest rate contracts	91			192
Foreign exchange contracts	17			3
Subtotal	108			195
Gains (losses) recognized in net income due to ineffectiveness:
Interest rate contracts	2			(4		)
Net derivative gains (losses) recognized in net income	$	110		$	191

Gains (losses) on free-standing derivatives



	Year Ended December 31,
(Dollars in millions)	2018			2017		2016
Gains (losses) recognized in other non-interest income:
Customer accommodation:
Interest rate contracts	$	25		$	20	$	24
Commodity contracts	16			13		10
Foreign exchange and other contracts	7			5		3
Total customer accommodation	48			38		37
Other interest rate exposures	33			61		67
Other contracts	(21		)	0		(9		)
Total	$	60		$	99	$	95

Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2018

Equity [Abstract]

Schedule of Preferred Stock

The following table summarizes the Company’s preferred stock issued and outstanding as of December 31, 2018 and 2017.

Table 11.1: Preferred Stock Issued and Outstanding⁽¹⁾



			Redeemable by Issuer Beginning	Per Annum Dividend Rate		Dividend Frequency	Liquidation Preference per Share			Carrying Value (in millions)
Series	Description	Issuance Date	Redeemable by Issuer Beginning	Per Annum Dividend Rate		Dividend Frequency	Liquidation Preference per Share		Total Shares Outstanding	December 31, 2018		December 31, 2017
Series B	6.00% Non-Cumulative	August 20, 2012	September 1, 2017	6.00	%	Quarterly	$	1,000	875,000	$	853	$	853
Series C	6.25% Non-Cumulative	June 12, 2014	September 1, 2019	6.25		Quarterly	1,000		500,000	484		484
Series D	6.70% Non-Cumulative	October 31, 2014	December 1, 2019	6.70		Quarterly	1,000		500,000	485		485
Series E	Fixed-to-Floating Rate Non-Cumulative	May 14, 2015	June 1, 2020	5.55% through 5/31/2020; 3-mo. LIBOR+ 380 bps thereafter		Semi-Annually through 5/31/2020; Quarterly thereafter	1,000		1,000,000	988		988
Series F	6.20% Non-Cumulative	August 24, 2015	December 1, 2020	6.20		Quarterly	1,000		500,000	484		484
Series G	5.20% Non-Cumulative	July 29, 2016	December 1, 2021	5.20		Quarterly	1,000		600,000	583		583
Series H	6.00% Non-Cumulative	November 29, 2016	December 1, 2021	6.00		Quarterly	1,000		500,000	483		483
Total										$	4,360	$	4,360

__________

⁽¹⁾

Except for Series E, ownership is held in the form of depositary shares, each representing a 1/40th interest in a share of fixed-rate non-cumulative perpetual preferred stock.

Change in AOCI Gain (Loss) by Component (Net of Tax)

The following table includes the AOCI impacts from the adoption of accounting standards and the changes in AOCI by component for the years ended December 31, 2018, 2017 and 2016.

Table 11.2: Accumulated Other Comprehensive Income (Loss)



(Dollars in millions)	Securities Available for Sale			Securities Held to Maturity			Cash Flow Hedges			Foreign Currency Translation Adjustments⁽¹⁾			Other			Total
AOCI as of December 31, 2015	$	162		$	(725	)	$	120		$	(143	)	$	(30	)	$	(616	)
Other comprehensive income (loss) before reclassifications	(172		)	0			(3		)	(79		)	7			(247		)
Amounts reclassified from AOCI into earnings	6			104			(195		)	0			(1		)	(86		)
Other comprehensive income (loss), net of tax	(166		)	104			(198		)	(79		)	6			(333		)
AOCI as of December 31, 2016	(4		)	(621		)	(78		)	(222		)	(24		)	(949		)
Other comprehensive income (loss) before reclassifications	62			0			(95		)	84			30			81
Amounts reclassified from AOCI into earnings	(41		)	97			(108		)	0			(6		)	(58		)
Other comprehensive income (loss), net of tax	21			97			(203		)	84			24			23
AOCI as of December 31, 2017	17			(524		)	(281		)	(138		)	0			(926		)
Cumulative effects from adoption of new accounting standards	3			(113		)	(63		)	0			(28		)	(201		)
Transfer of securities held to maturity to available for sale⁽²⁾	(325		)	407			0			0			0			82
Other comprehensive income (loss) before reclassifications	(293		)	0			38			(39		)	(8		)	(302		)
Amounts reclassified from AOCI into earnings	159			40			(112		)	0			(3		)	84
Other comprehensive income (loss), net of tax	(459		)	447			(74		)	(39		)	(11		)	(136		)
AOCI as of December 31, 2018	$	(439	)	$	(190	)	$	(418	)	$	(177	)	$	(39	)	$	(1,263	)

__________


⁽¹⁾	Includes other comprehensive gain of $150 million, loss of $143 million and gain of $280 million for the years ended December 31, 2018, 2017 and 2016, respectively, from hedging instruments designated as net investment hedges.


⁽²⁾	In the first quarter of 2018, we made a one-time transfer of held to maturity securities with a carrying value of $9.0 billion to available for sale as a result of our adoption of ASU No. 2017-12. This transfer resulted in an after-tax gain of $82 million ($107 million pre-tax) to AOCI.

Reclassifications from AOCI

The following table presents the impacts on net income of amounts reclassified from each component of AOCI for the years ended December 31, 2018, 2017 and 2016.

Table 11.3: Reclassifications from AOCI




(Dollars in millions)		Year Ended December 31,
AOCI Components	Affected Income Statement Line Item	2018			2017			2016
Securities available for sale:
	Non-interest income	$	(209	)	$	65		$	(10	)
	Income tax provision (benefit)	(50		)	24			(4		)
	Net income (loss)	(159		)	41			(6		)
Securities held to maturity:⁽¹⁾
	Interest income	(53		)	(150		)	(164		)
	Income tax benefit	(13		)	(53		)	(60		)
	Net loss	(40		)	(97		)	(104		)
Cash flow hedges:
Interest rate contracts:	Interest income	(91		)	145			306
Foreign exchange contracts:	Interest income	47			27			6
	Non-interest income	191			1			(2		)
	Income from continuing operations before income taxes	147			173			310
	Income tax provision	35			65			115
	Net income	112			108			195
Other:
	Non-interest income and non-interest expense	4			9			2
	Income tax provision	1			3			1
	Net income	3			6			1
Total reclassifications		$	(84	)	$	58		$	86

__________

⁽¹⁾

Components of Other Comprehensive Income (Loss) and Related Tax Impact

The table below summarizes other comprehensive income (loss) activity and the related tax impact for the years ended December 31, 2018, 2017 and 2016.

Table 11.4: Other Comprehensive Income (Loss)



	Year Ended December 31,
	2018									2017									2016
(Dollars in millions)	Before Tax			Provision (Benefit)			After Tax			Before Tax			Provision (Benefit)			After Tax			Before Tax			Provision (Benefit)			After Tax
Other comprehensive income (loss):
Net unrealized gains (losses) on securities available for sale	$	(605	)	$	(146	)	$	(459	)	$	23		$	2		$	21		$	(254	)	$	(88	)	$	(166	)
Net changes in securities held to maturity	588			141			447			150			53			97			164			60			104
Net unrealized losses on cash flow hedges	(98		)	(24		)	(74		)	(325		)	(122		)	(203		)	(315		)	(117		)	(198		)
Foreign currency translation adjustments⁽¹⁾	9			48			(39		)	3			(81		)	84			86			165			(79		)
Other	(15		)	(4		)	(11		)	38			14			24			10			4			6
Other comprehensive income (loss)	$	(121	)	$	15		$	(136	)	$	(111	)	$	(134	)	$	23		$	(309	)	$	24		$	(333	)

__________

⁽¹⁾

Includes the impact of hedging instruments designated as net investment hedges.

- Definition

Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding.

+ References

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+ Details

Regulatory and Capital Adequacy (Tables)

12 Months Ended

Dec. 31, 2018

Banking and Thrift [Abstract]

Schedule of Comparison of Capital Ratios

Table 12.1: Capital Ratios Under Basel III⁽¹⁾



	December 31, 2018								December 31, 2017
(Dollars in millions)	Capital Amount		Capital Ratio		Minimum Capital Adequacy		Well- Capitalized		Capital Amount		Capital Ratio		Minimum Capital Adequacy		Well- Capitalized
Capital One Financial Corp:
Common equity Tier 1 capital⁽²⁾	$	33,071	11.2	%	4.5	%	N/A		$	30,036	10.3	%	4.5	%	N/A
Tier 1 capital⁽³⁾	37,431		12.7		6.0		6.0	%	34,396		11.8		6.0		6.0	%
Total capital⁽⁴⁾	44,645		15.1		8.0		10.0		41,962		14.4		8.0		10.0
Tier 1 leverage⁽⁵⁾	37,431		10.7		4.0		N/A		34,396		9.9		4.0		N/A
Supplementary leverage⁽⁶⁾	37,431		9.0		3.0		N/A		34,396		8.4		N/A		N/A
COBNA:
Common equity Tier 1 capital⁽²⁾	16,378		15.3		4.5		6.5		14,791		14.3		4.5		6.5
Tier 1 capital⁽³⁾	16,378		15.3		6.0		8.0		14,791		14.3		6.0		8.0
Total capital⁽⁴⁾	18,788		17.6		8.0		10.0		17,521		16.9		8.0		10.0
Tier 1 leverage⁽⁵⁾	16,378		14.0		4.0		5.0		14,791		12.7		4.0		5.0
Supplementary leverage⁽⁶⁾	16,378		11.5		3.0		N/A		14,791		10.4		N/A		N/A
CONA:
Common equity Tier 1 capital⁽²⁾	25,637		13.0		4.5		6.5		23,771		12.2		4.5		6.5
Tier 1 capital⁽³⁾	25,637		13.0		6.0		8.0		23,771		12.2		6.0		8.0
Total capital⁽⁴⁾	27,912		14.2		8.0		10.0		26,214		13.4		8.0		10.0
Tier 1 leverage⁽⁵⁾	25,637		9.1		4.0		5.0		23,771		8.6		4.0		5.0
Supplementary leverage⁽⁶⁾	25,637		8.0		3.0		N/A		23,771		7.7		N/A		N/A

__________

⁽¹⁾


⁽²⁾	Common equity Tier 1 capital ratio is a regulatory capital measure calculated based on common equity Tier 1 capital divided by risk-weighted assets.


⁽³⁾	Tier 1 capital ratio is a regulatory capital measure calculated based on Tier 1 capital divided by risk-weighted assets.


⁽⁴⁾	Total capital ratio is a regulatory capital measure calculated based on total capital divided by risk-weighted assets.


⁽⁵⁾	Tier 1 leverage ratio is a regulatory capital measure calculated based on Tier 1 capital divided by adjusted average assets.

⁽⁶⁾

Supplementary leverage ratio is a regulatory capital measure calculated based on Tier 1 capital divided by total leverage exposure.

Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Common Share

Table 13.1: Computation of Basic and Diluted Earnings per Common Share



	Year Ended December 31,
(Dollars and shares in millions, except per share data)	2018			2017			2016
Income from continuing operations, net of tax	$	6,025		$	2,117		$	3,770
Loss from discontinued operations, net of tax	(10		)	(135		)	(19		)
Net income	6,015			1,982			3,751
Dividends and undistributed earnings allocated to participating securities	(40		)	(13		)	(24		)
Preferred stock dividends	(265		)	(265		)	(214		)
Net income available to common stockholders	$	5,710		$	1,704		$	3,513

Total weighted-average basic shares outstanding	479.9			484.2			504.9
Effect of dilutive securities:
Stock options	1.6			2.5			2.0
Other contingently issuable shares	1.1			1.2			1.3
Warrants⁽¹⁾	0.5			0.7			1.6
Total effect of dilutive securities	3.2			4.4			4.9
Total weighted-average diluted shares outstanding	483.1			488.6			509.8
Basic earnings per common share:
Net income from continuing operations	$	11.92		$	3.80		$	7.00
Loss from discontinued operations	(0.02		)	(0.28		)	(0.04		)
Net income per basic common share	$	11.90		$	3.52		$	6.96
Diluted earnings per common share:⁽²⁾
Net income from continuing operations	$	11.84		$	3.76		$	6.93
Loss from discontinued operations	(0.02		)	(0.27		)	(0.04		)
Net income per diluted common share	$	11.82		$	3.49		$	6.89

__________


⁽¹⁾	Represents warrants issued as part of the U.S. Department of Treasury’s Troubled Assets Relief Program which had all been exercised or expired on November 14, 2018. There were 1.3 million and 4.1 million warrants to purchase common stock outstanding as of December 31, 2017 and 2016, respectively.

⁽²⁾

Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Stock Option Activity

The following table presents a summary of 2018 activity for stock options and the balance of stock options exercisable as of December 31, 2018.Table 14.1: Summary of Stock Options Activity



(Shares in thousands, and intrinsic value in millions)	Shares Subject to Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding as of January 1, 2018	4,766		$	48.50
Granted	0		0.00
Exercised	(1,310	)	28.65
Forfeited	0		0.00
Expired	0		0.00
Outstanding as of December 31, 2018	3,456		$	56.03	3.88 years	$	71
Exercisable as of December 31, 2018	3,043		$	53.36	3.37 years	$	68

Summary of Stock Options Cash Flow Impact

The following table presents the cash received from the exercise of stock options under all stock-based incentive arrangements, and the actual income tax benefit for the tax deductions from the exercise of the stock options.Table 14.2: Stock Options Cash Flow Impact



	Year Ended December 31,
(Dollars in millions)	2018		2017		2016
Cash received for options exercised	$	38	$	122	$	135
Tax benefit	22		34		12

Weighted Average Assumptions Used to value Stock Options Granted

Table 14.3: Assumptions Used to Value Stock Options Granted



	Year Ended December 31,
	2017		2016
Dividend yield	1.85	%	2.07	%
Volatility⁽¹⁾	27.00		30.00
Risk-free interest rate (U.S. Treasury yield curve)	2.30		1.64
Expected option lives	6.6 years		6.6 years

__________

⁽¹⁾

The volatility assumption was based on the implied volatility of exchange-traded options and the historical volatility of common stock.

Summary of Activity for Restricted Stock Awards and Units

The following table presents a summary of 2018 activity for RSAs and RSUs.Table 14.4: Summary of Restricted Stock Awards and Units



	Restricted Stock Awards				Restricted Stock Units
(Shares/units in thousands)	Shares		Weighted-Average Grant Date Fair Value per Share		Units		Weighted-Average Grant Date Fair Value per Unit
Unvested as of January 1, 2018	16		$	56.39	3,379		$	74.06
Granted	0		N/A		1,547		100.73
Vested	(16	)	56.39		(1,426	)	75.62
Forfeited	0		0.00		(155	)	88.16
Unvested as of December 31, 2018	0		$	0.00	3,345		$	85.01

Schedule of Activity for Performance Share and Performance Units

he following table presents a summary of 2018 activity for PSUs only.

Table 14.5: Summary of Performance Share Units



	Performance Share Units
(Shares/units in thousands)	Units		Weighted-Average Grant Date Fair Value per Unit
Unvested as of January 1, 2018	1,918		$	75.38
Granted⁽¹⁾	878		100.65
Vested⁽¹⁾	(932	)	74.80
Forfeited	(60	)	90.35
Unvested as of December 31, 2018	1,804		$	87.48

__________

⁽¹⁾

Granted and vested include adjustments for achievement of specific performance goals for performance share units granted in prior periods.

Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2018

Retirement Benefits [Abstract]

Schedule of Changes in Benefit Obligation and Plan Assets



	Defined Pension Benefits						Other Postretirement Benefits
(Dollars in millions)	2018			2017			2018			2017
Change in benefit obligation:
Accumulated benefit obligation as of January 1,	$	178		$	180		$	35		$	39
Service cost	1			2			0			0
Interest cost	6			7			1			2
Benefits paid	(15		)	(18		)	(2		)	(3		)
Net actuarial loss (gain)	(13		)	7			(5		)	(3		)
Accumulated benefit obligation as of December 31,	$	157		$	178		$	29		$	35
Change in plan assets:
Fair value of plan assets as of January 1,	$	246		$	226		$	6		$	6
Actual return on plan assets	(14		)	37			0			1
Employer contributions	1			1			2			2
Benefits paid	(15		)	(18		)	(2		)	(3		)
Fair value of plan assets as of December 31,	$	218		$	246		$	6		$	6
Over (under) funded status as of December 31,	$	61		$	68		$	(23	)	$	(29	)

Schedule of Amounts Recognized in Balance Sheet



	Defined Pension Benefits						Other Postretirement Benefits
(Dollars in millions)	2018			2017			2018			2017
Balance sheet presentation as of December 31,
Other assets	$	71		$	80		$	0		$	0
Other liabilities	(10		)	(12		)	(23		)	(29		)
Net amount recognized as of December 31,	$	61		$	68		$	(23	)	$	(29	)

Schedule of Net Periodic Benefit Costs and Other Amounts Recognized in Other Comprehensive Income

The following table presents the components of net periodic benefit costs and other amounts recognized in other comprehensive income.Table 15.2: Components of Net Periodic Benefit Cost



	Year Ended December 31,
	2018			2017			2016			2018			2017			2016
(Dollars in millions)	Defined Pension Benefits									Other Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	1		$	2		$	2		$	0		$	0		$	0
Interest cost	6			7			7			1			2			2
Expected return on plan assets	(15		)	(14		)	(14		)	0			0			0
Amortization of transition obligation, prior service credit and net actuarial loss (gain)	1			1			1			(6		)	(6		)	(6		)
Net periodic benefit gain	$	(7	)	$	(4	)	$	(4	)	$	(5	)	$	(4	)	$	(4	)

Changes recognized in other comprehensive income, pretax:
Net actuarial gain (loss)	$	(17	)	$	16		$	4		$	5		$	4		$	5
Reclassification adjustments for amounts recognized in net periodic benefit cost	1			1			1			(6		)	(6		)	(6		)
Total gain (loss) recognized in other comprehensive income	$	(16	)	$	17		$	5		$	(1	)	$	(2	)	$	(1	)

Schedule of Weighted Average Assumptions Used in Accounting for Plans

The following table presents weighted-average assumptions used in the accounting for the plans:Table 15.3: Assumptions Used in the Accounting for the Plans



	December 31,
	2018		2017		2016		2018		2017		2016
	Defined Pension Benefits						Other Postretirement Benefits
Assumptions for benefit obligations at measurement date:
Discount rate	4.2	%	3.5	%	4.0	%	4.2	%	3.5	%	4.0	%
Assumptions for periodic benefit cost for the year ended:
Discount rate	3.5		4.0		4.2		3.5		4.0		4.2
Expected long-term rate of return on plan assets	6.5		6.5		6.5		6.5		6.5		6.5
Assumptions for year-end valuations:
Health care cost trend rate assumed for next year:
Pre-age 65	N/A		N/A		N/A		6.2		6.5		6.7
Post-age 65	N/A		N/A		N/A		6.2		6.5		6.8
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	N/A		N/A		N/A		4.5		4.5		4.5
Year the rate reaches the ultimate trend rate	N/A		N/A		N/A		2037		2037		2037

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Significant Components of Provision for Income Taxes Attributable to Continuing Operations

The following table presents significant components of the provision for income taxes attributable to continuing operations:Table 16.1: Significant Components of the Provision for Income Taxes Attributable to Continuing Operations



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Current income tax provision:
Federal taxes	$	210		$	1,585		$	2,087
State taxes	234			223			209
International taxes	135			133			104
Total current provision	$	579		$	1,941		$	2,400
Deferred income tax provision (benefit):
Federal taxes	$	620		$	1,509		$	(621	)
State taxes	115			(69		)	(63		)
International taxes	(21		)	(6		)	(2		)
Total deferred provision (benefit)	714			1,434			(686		)
Total income tax provision	$	1,293		$	3,375		$	1,714

Schedule of Effective Income Tax Rate



	Year Ended December 31,
	2018		2017		2016
Income tax at U.S. federal statutory tax rate	21.0	%	35.0	%	35.0	%
Affordable housing, new markets and other tax credits	(4.0	)	(5.8	)	(4.9	)
IRS method changes	(3.9	)	0.0		0.0
Tax-exempt interest and other nontaxable income	(0.7	)	(1.5	)	(1.4	)
Impacts of the Tax Act	(0.3	)	32.2		N/A
State taxes, net of federal benefit	3.2		2.2		1.9
Non-deductible expenses	2.2		0.7		0.9
Other, net	0.2		(1.3	)	(0.2	)
Effective income tax rate	17.7	%	61.5	%	31.3	%

Schedule of Significant Components of Deferred Tax Assets and Liabilities



(Dollars in millions)	December 31, 2018			December 31, 2017
Deferred tax assets:
Allowance for loan and lease losses	$	1,700		$	1,768
Rewards programs	500			936
Security and loan valuations	288			424
Net operating loss and tax credit carryforwards	271			244
Goodwill and intangibles	187			201
Compensation and employee benefits	167			208
Partnership investments	162			130
Net unrealized losses on derivatives	135			104
Unearned income	114			130
Other assets	152			156
Subtotal	3,676			4,301
Valuation allowance	(245		)	(226		)
Total deferred tax assets	3,431			4,075
Deferred tax liabilities:
Original issue discount	720			703
Fixed assets and leases	204			168
Loan fees and expenses	75			68
Mortgage servicing rights	48			57
Other liabilities	239			215
Total deferred tax liabilities	1,286			1,211
Net deferred tax assets	$	2,145		$	2,864

Schedule of Reconciliation of Change in Unrecognized Tax Benefits

The following table presents the accrued balance of tax, interest and penalties related to unrecognized tax benefits:Table 16.4: Reconciliation of the Change in Unrecognized Tax Benefits



(Dollars in millions)	Gross Unrecognized Tax Benefits			Accrued Interest and Penalties			Gross Tax, Interest and Penalties
Balance as of January 1, 2016	$	130		$	33		$	163
Additions for tax positions related to prior years	0			6			6
Reductions for tax positions related to prior years due to IRS and other settlements	(45		)	(15		)	(60		)
Balance as of December 31, 2016	85			24			109
Additions for tax positions related to prior years	5			7			12
Reductions for tax positions related to prior years due to IRS and other settlements	(4		)	(2		)	(6		)
Balance as of December 31, 2017	86			29			115
Additions for tax positions related to the current year	28			0			28
Additions for tax positions related to prior years	402			25			427
Reductions for tax positions related to prior years due to IRS and other settlements	(76		)	(19		)	(95		)
Balance as of December 31, 2018	$	440		$	35		$	475
Portion of balance at December 31, 2018 that, if recognized, would impact the effective income tax rate	$	181		$	28		$	209

Fair Value Measurement (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table displays our assets and liabilities measured on our consolidated balance sheets at fair value on a recurring basis as of December 31, 2018 and 2017.

Table 17.1: Assets and Liabilities Measured at Fair Value on a Recurring Basis



	December 31, 2018
	Fair Value Measurements Using						Netting Adjustments⁽¹⁾
(Dollars in millions)	Level 1		Level 2		Level 3		Netting Adjustments⁽¹⁾			Total
Assets:
Securities available for sale:
U.S. Treasury securities	$	6,144	$	0	$	0	—			$	6,144
RMBS	0		33,212		433		—			33,645
CMBS	0		4,729		10		—			4,739
Other securities	219		1,403		0		—			1,622
Total securities available for sale	6,363		39,344		443		—			46,150
Other assets:
Derivative assets⁽²⁾	0		1,501		38		$	(1,079	)	460
Other⁽³⁾	265		0		158		—			423
Total assets	$	6,628	$	40,845	$	639	$	(1,079	)	$	47,033
Liabilities:
Other liabilities:
Derivative liabilities⁽²⁾	$	0	$	1,153	$	48	$	(287	)	$	914
Total liabilities	$	0	$	1,153	$	48	$	(287	)	$	914



	December 31, 2017
	Fair Value Measurements Using						Netting Adjustments⁽¹⁾
(Dollars in millions)	Level 1		Level 2		Level 3		Netting Adjustments⁽¹⁾			Total
Assets:
Securities available for sale:
U.S. Treasury securities	$	5,171	$	0	$	0	—			$	5,171
RMBS	0		27,178		614		—			27,792
CMBS	0		3,161		14		—			3,175
Other securities	320		1,192		5		—			1,517
Total securities available for sale	5,491		31,531		633		—			37,655
Other assets:
Derivative assets⁽²⁾	1		1,002		37		$	(275	)	765
Other⁽³⁾	281		0		264		—			545
Total assets	$	5,773	$	32,533	$	934	$	(275	)	$	38,965
Liabilities:
Other liabilities:
Derivative liabilities⁽²⁾	$	1	$	1,243	$	24	$	(662	)	$	606
Total liabilities	$	1	$	1,243	$	24	$	(662	)	$	606

__________


⁽¹⁾	Represents balance sheet netting of derivative assets and liabilities, and related payables and receivables for cash collateral held or placed with the same counterparty. See “Note 10—Derivative Instruments and Hedging Activities” for additional information.

⁽²⁾

⁽³⁾

As of December 31, 2018, other includes retained interests in securitizations of $158 million, deferred compensation plan assets of $264 million and equity securities of $1 million. As of December 31, 2017, other includes consumer MSRs of $92 million, retained interests in securitizations of $172 million and deferred compensation plan assets of $281 million

Schedule of Level 3 Inputs Reconciliation

Table 17.2: Level 3 Recurring Fair Value Rollforward



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year Ended December 31, 2018
			Total Gains (Losses) (Realized/Unrealized)																								Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of December 31, 2018⁽¹⁾
			Total Gains (Losses) (Realized/Unrealized)
(Dollars in millions)	Balance, January 1, 2018		Included in Net Income⁽¹⁾			Included in OCI			Purchases		Sales			Issuances		Settlements			Transfers Into Level 3		Transfers Out of Level 3			Balance, December 31, 2018
Securities available for sale:⁽²⁾
RMBS	$	614	$	32		$	(8	)	$	0	$	0		$	0	$	(74	)	$	203	$	(334	)	$	433		$	28
CMBS	14		0			0			0		0			0		(4		)	0		0			10			0
Other securities	5		0			0			0		0			0		(5		)	0		0			0			0
Total securities available for sale	633		32			(8		)	0		0			0		(83		)	203		(334		)	443			28
Other assets:
Consumer MSRs	92		3			0			0		(97		)	2		0			0		0			0			0
Retained interest in securitizations	172		(14		)	0			0		0			0		0			0		0			158			(14		)
Net derivative assets (liabilities)⁽³⁾	13		(20		)	0			0		0			13		(17		)	0		1			(10		)	(20		)



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year Ended December 31, 2017
			Total Gains (Losses) (Realized/Unrealized)																							Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of December 31, 2017⁽¹⁾
			Total Gains (Losses) (Realized/Unrealized)
(Dollars in millions)	Balance, January 1, 2017		Included in Net Income⁽¹⁾			Included in OCI			Purchases		Sales			Issuances		Settlements			Transfers Into Level 3		Transfers Out of Level 3			Balance, December 31, 2017
Securities available for sale:
RMBS	$	518	$	90		$	(24	)	$	0	$	(116	)	$	0	$	(92	)	$	572	$	(334	)	$	614	$	19
CMBS	51		0			0			110		(50		)	0		(4		)	0		(93		)	14		0
Other securities	9		0			0			0		0			0		(4		)	0		0			5		0
Total securities available for sale	578		90			(24		)	110		(166		)	0		(100		)	572		(427		)	633		19
Other assets:
Consumer MSRs	80		(5		)	0			0		(3		)	27		(7		)	0		0			92		(5		)
Retained interest in securitizations	201		(29		)	0			0		0			0		0			0		0			172		(29		)
Net derivative assets (liabilities)⁽³⁾	18		0			0			0		0			46		(44		)	0		(7		)	13		0



	Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
	Year Ended December 31, 2016
			Total Gains (Losses) (Realized/Unrealized)																					Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of December 31, 2016⁽¹⁾
			Total Gains (Losses) (Realized/Unrealized)
(Dollars in millions)	Balance, January 1, 2016		Included in Net Income⁽¹⁾			Included in OCI		Purchases		Sales		Issuances		Settlements			Transfers Into Level 3		Transfers Out of Level 3			Balance, December 31, 2016
Securities available for sale:
RMBS	$	504	$	31		$	9	$	110	$	0	$	0	$	(98	)	$	380	$	(418	)	$	518	$	32
CMBS	97		0			0		266		0		0		(14		)	64		(362		)	51		0
Other securities	14		(9		)	0		44		0		0		(10		)	0		(30		)	9		0
Total securities available for sale	615		22			9		420		0		0		(122		)	444		(810		)	578		32
Other assets:
Consumer MSRs	68		(5		)	0		0		0		23		(6		)	0		0			80		(5		)
Retained interest in securitizations	211		(10		)	0		0		0		0		0			0		0			201		(10		)
Net derivative assets (liabilities)⁽³⁾	30		(5		)	0		0		0		36		(33		)	0		(10		)	18		(5		)

__________


⁽¹⁾	Realized gains (losses) on securities available for sale are included in net securities gains (losses), retained interests in securitizations and consumer MSRs are reported as a component of non-interest income in our consolidated statements of income. Gains (losses) on derivatives are included as a component of net interest income or non-interest income in our consolidated statements of income.


⁽²⁾	Net unrealized losses included in other comprehensive income related to Level 3 securities available for sale still held as of December 31, 2018 were $17 million.

⁽³⁾

Includes derivative assets and liabilities of $38 million and $48 million, respectively, as of December 31, 2018, $37 million and $24 million, respectively, as of December 31, 2017, and $47 million and $29 million, respectively, as of December 31, 2016.

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis Quantitative Information

Table 17.3: Quantitative Information about Level 3 Fair Value Measurements

Quantitative Information about Level 3 Fair Value Measurements

(Dollars in millions)

Fair Value at December 31,
2018

Significant

Valuation

Techniques

Significant

Unobservable

Inputs

Range

Weighted

Average⁽¹⁾

Securities available for sale:

RMBS

433

Discounted cash flows (vendor pricing)

Yield
Voluntary prepayment rate
Default rate
Loss severity

3-11%
0-17%
0-7%
0-75%

5%
5%
3%
65%

CMBS

Discounted cash flows (vendor pricing)

Yield

Other assets:

Retained interests in securitization⁽²⁾

158

Discounted cash flows

Life of receivables (months)
Voluntary prepayment rate
Discount rate
Default rate
Loss severity

3-56
3-14%
4-6%
2-4%
50-104%

N/A

Net derivative assets (liabilities)

(10

)

Discounted cash flows

Swap rates

Quantitative Information about Level 3 Fair Value Measurements

(Dollars in millions)

Fair Value at

December 31,

2017

Significant

Valuation

Techniques

Significant

Unobservable

Inputs

Range

Weighted

Average

Securities available for sale:

RMBS

614

Discounted cash flows (vendor pricing)

Yield
Voluntary prepayment rate
Default rate
Loss severity

2-9%
0-15%
0-8%
0-90%

5%
4%
3%
62%

CMBS

Discounted cash flows (vendor pricing)

Yield
Voluntary prepayment rate

3%
0%

Other securities

Discounted cash flows

Yield

Other assets:

Consumer MSRs

Discounted cash flows

Total prepayment rate
Discount rate
Option-adjusted spread rate
Servicing cost ($ per loan)

7-30%
14%
200-1,500 bps
$75-$100

16%
14%
458 bps
$76

Retained interests in securitization⁽²⁾

172

Discounted cash flows

Life of receivables (months)
Voluntary prepayment rate
Discount rate
Default rate
Loss severity

6-79
2-12%
3-10%
1-6%
3-115%

N/A

Net derivative assets (liabilities)

Discounted cash flows

Swap rates

__________


⁽¹⁾	Weighted averages are calculated by using the product of the input multiplied by the relative fair value of the instruments.

⁽²⁾

Due to the nature of the various mortgage securitization structures in which we have retained interests, it is not meaningful to present a consolidated weighted average for the significant unobservable inputs.

Schedule of Assets Measured at Fair Value on Nonrecurring Basis

Table 17.4: Nonrecurring Fair Value Measurements



	December 31, 2018
	Estimated Fair Value Hierarchy				Total
(Dollars in millions)	Level 2		Level 3		Total
Loans held for investment	$	0	$	129	$	129
Loans held for sale	38		0		38
Other assets⁽¹⁾	0		100		100
Total	$	38	$	229	$	267



	December 31, 2017
	Estimated Fair Value Hierarchy				Total
(Dollars in millions)	Level 2		Level 3		Total
Loans held for investment	$	0	$	182	$	182
Loans held for sale	177		1		178
Other assets⁽¹⁾	0		35		35
Total	$	177	$	218	$	395

__________

⁽¹⁾

As of December 31, 2018, other assets included equity investments accounted for under measurement alternative of $24 million, foreclosed property and repossessed assets of $57 million and long-lived assets held for sale of $19 million. As of December 31, 2017, other assets included foreclosed property and repossessed assets of $17 million and long-lived assets held for sale of $18 million

Schedule of Earnings Related to Assets Measured at Fair Value on Nonrecurring Basis

Table 17.5: Nonrecurring Fair Value Measurements Included in Earnings



	Total Gains (Losses)
	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Loans held for investment	$	(85	)	$	(100	)	$	(230	)
Loans held for sale	0			(3		)	(2		)
Other assets⁽¹⁾	(74		)	(12		)	(19		)
Total	$	(159	)	$	(115	)	$	(251	)

__________

⁽¹⁾

Other assets include fair value adjustments related to equity investments accounted for under the measurement alternative, foreclosed property, repossessed assets and long-lived assets held for sale.

Schedule of Fair Value of Financial Instruments

Table 17.6: Fair Value of Financial Instruments



	December 31, 2018
	Carrying Value		Estimated Fair Value		Estimated Fair Value Hierarchy
(Dollars in millions)	Carrying Value		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	13,186	$	13,186	$	4,768	$	8,418	$	0
Restricted cash for securitization investors	303		303		303		0		0
Securities held to maturity	36,771		36,619		0		36,513		106
Net loans held for investment	238,679		241,556		0		0		241,556
Loans held for sale	1,192		1,218		0		1,218		0
Interest receivable	1,614		1,614		0		1,614		0
Other investments⁽¹⁾	1,725		1,725		0		1,725		0
Financial liabilities:
Deposits with defined maturities	38,471		38,279		0		38,279		0
Securitized debt obligations	18,307		18,359		0		18,359		0
Senior and subordinated notes	30,826		30,635		0		30,635		0
Federal funds purchased and securities loaned or sold under agreements to repurchase	352		352		0		352		0
Other borrowings⁽²⁾	9,354		9,354		0		9,354		0
Interest payable	458		458		0		458		0



	December 31, 2017
	Carrying Value		Estimated Fair Value		Estimated Fair Value Hierarchy
(Dollars in millions)	Carrying Value		Estimated Fair Value		Level 1		Level 2		Level 3
Financial assets:
Cash and cash equivalents	$	14,040	$	14,040	$	4,458	$	9,582	$	0
Restricted cash for securitization investors	312		312		312		0		0
Securities held to maturity	28,984		29,437		200		29,217		20
Net loans held for investment	246,971		251,468		0		0		251,468
Loans held for sale	971		952		0		949		3
Interest receivable	1,536		1,536		0		1,536		0
Other investments⁽¹⁾	1,689		1,689		0		1,680		9
Financial liabilities:
Deposits	243,702		243,732		26,404		217,328		0
Securitized debt obligations	20,010		20,122		0		20,122		0
Senior and subordinated notes	30,755		31,392		0		31,392		0
Federal funds purchased and securities loaned or sold under agreements to repurchase	576		576		0		576		0
Other borrowings⁽²⁾	8,892		8,892		0		8,892		0
Interest payable	413		413		0		413		0

__________


⁽¹⁾	Other investments as of December 31, 2018 include FHLB and Federal Reserve stock. Other investments as of December 31, 2017 include FHLB and Federal Reserve stock, as well as cost method investments. These investments are included in other assets on our consolidated balance sheets.

⁽²⁾

Other borrowings excludes capital lease obligations.

Business Segments and Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Results and Reconciliation

Table 18.1: Segment Results and Reconciliation



	Year Ended December 31, 2018
(Dollars in millions)	Credit Card		Consumer Banking		Commercial Banking⁽¹⁾⁽²⁾		Other^(1)(2)(3)			Consolidated Total
Net interest income	$	14,167	$	6,549	$	2,152	$	7		$	22,875
Non-interest income	3,520		663		744		274			5,201
Total net revenue	17,687		7,212		2,896		281			28,076
Provision (benefit) for credit losses	4,984		838		83		(49		)	5,856
Non-interest expense	8,542		4,027		1,654		679			14,902
Income (loss) from continuing operations before income taxes	4,161		2,347		1,159		(349		)	7,318
Income tax provision (benefit)	970		547		270		(494		)	1,293
Income from continuing operations, net of tax	$	3,191	$	1,800	$	889	$	145		$	6,025
Loans held for investment	$	116,361	$	59,205	$	70,333	$	0		$	245,899
Deposits	0		198,607		29,480		21,677			249,764

	Year Ended December 31, 2017
(Dollars in millions)	Credit Card		Consumer Banking		Commercial Banking⁽¹⁾		Other⁽¹⁾			Consolidated Total
Net interest income	$	13,648	$	6,380	$	2,261	$	171		$	22,460
Non-interest income	3,325		749		708		(5		)	4,777
Total net revenue	16,973		7,129		2,969		166			27,237
Provision for credit losses	6,066		1,180		301		4			7,551
Non-interest expense	7,916		4,233		1,603		442			14,194
Income (loss) from continuing operations before income taxes	2,991		1,716		1,065		(280		)	5,492
Income tax provision	1,071		626		389		1,289			3,375
Income (loss) from continuing operations, net of tax	$	1,920	$	1,090	$	676	$	(1,569	)	$	2,117
Loans held for investment	$	114,762	$	75,078	$	64,575	$	58		$	254,473
Deposits	0		185,842		33,938		23,922			243,702



	Year Ended December 31, 2016
(Dollars in millions)	Credit Card		Consumer Banking		Commercial Banking⁽¹⁾		Other⁽¹⁾			Consolidated Total
Net interest income	$	12,635	$	5,829	$	2,216	$	193		$	20,873
Non-interest income	3,380		733		578		(63		)	4,628
Total net revenue	16,015		6,562		2,794		130			25,501
Provision (benefit) for credit losses	4,926		1,055		483		(5		)	6,459
Non-interest expense	7,703		4,139		1,407		309			13,558
Income (loss) from continuing operations before income taxes	3,386		1,368		904		(174		)	5,484
Income tax provision (benefit)	1,226		498		329		(339		)	1,714
Income from continuing operations, net of tax	$	2,160	$	870	$	575	$	165		$	3,770
Loans held for investment	$	105,552	$	73,054	$	66,916	$	64		$	245,586
Deposits	0		181,917		33,866		20,985			236,768

_________


⁽¹⁾	Some of our commercial investments generate tax-exempt income, tax credits or other tax benefits. Accordingly, we present our Commercial Banking revenue and yields on a taxable-equivalent basis, calculated using the federal statutory tax rate (21% for 2018 and 35% for 2017 and 2016) and state taxes where applicable, with offsetting reductions to the Other category.

⁽²⁾

⁽³⁾

In 2018, we sold all of our consumer home loan portfolio and recognized a gain of approximately $499 million in the Other category, including a benefit for credit losses of $46 million.

Disaggregation of Revenue

The following table presents revenue from contracts with customers and a reconciliation to non-interest income by business segment for the year ended December 31, 2018.

Table 18.2: Revenue from Contracts with Customers and Reconciliation to Segments Results



	Year Ended December 31, 2018
(Dollars in millions)	Credit Card		Consumer Banking		Commercial Banking⁽¹⁾		Other⁽¹⁾			Consolidated Total
Contract revenue:
Interchange fees, net⁽²⁾	$	2,609	$	185	$	33	$	(4	)	$	2,823
Service charges and other customer-related fees	0		367		123		(1		)	489
Other	8		109		2		0			119
Total contract revenue	2,617		661		158		(5		)	3,431
Revenue from other sources	903		2		586		279			1,770
Total non-interest income	$	3,520	$	663	$	744	$	274		$	5,201

__________


⁽¹⁾	Some of our commercial investments generate tax-exempt income, tax credits or other tax benefits. Accordingly, we present our Commercial Banking revenue and yields on a taxable-equivalent basis, calculated using the federal statutory tax rate of 21% and state taxes where applicable, with offsetting reclassifications to the Other category.

⁽²⁾

Interchange fees are presented net of customer reward expenses of $4.4 billion for the year ended December 31, 2018.

Commitments, Contingencies, Guarantees, and Others (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Letter of Credit and Other Loan Commitments [Table Text Block]

Table 19.1: Unfunded Lending Commitments: Contractual Amount and Carrying Value



	Contractual Amount				Carrying Value
(Dollars in millions)	December 31, 2018		December 31, 2017		December 31, 2018		December 31, 2017
Credit card lines	$	346,186	$	351,481	N/A		N/A
Other loan commitments⁽¹⁾	34,449		31,840		$	95	$	84
Standby letters of credit and commercial letters of credit⁽²⁾	1,792		2,046		29		43
Total unfunded lending commitments	$	382,427	$	385,367	$	124	$	127

__________


⁽¹⁾	Includes $1.3 billion and $1.0 billion of advised lines of credit as of December 31, 2018 and 2017, respectively.

⁽²⁾

These financial guarantees have expiration dates ranging from 2019 to 2025 as of December 31, 2018.

Capital One Financial Corporation (Parent Company Only) (Tables)

12 Months Ended

Dec. 31, 2018

Condensed Financial Information Disclosure [Abstract]

Condensed Income Statement

Table 20.1: Parent Company Statements of Income



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Interest income	$	313		$	178		$	120
Interest expense	720			381			258
Dividends from subsidiaries	2,750			300			3,936
Non-interest income (loss)	19			19			(13		)
Non-interest expense	29			34			48
Income before income taxes and equity in undistributed earnings of subsidiaries	2,333			82			3,737
Income tax benefit	(128		)	(103		)	(79		)
Equity in undistributed earnings of subsidiaries	3,554			1,797			(65		)
Net income	6,015			1,982			3,751
Other comprehensive income (loss), net of tax	(136		)	23			(333		)
Comprehensive income	$	5,879		$	2,005		$	3,418

Condensed Balance Sheet

Table 20.2: Parent Company Balance Sheets



	December 31,		December 31,
(Dollars in millions)	2018		2017
Assets:
Cash and cash equivalents	$	10,286	$	8,196
Investments in subsidiaries	58,154		54,712
Loans to subsidiaries	2,603		548
Securities available for sale	795		907
Other assets	1,250		729
Total assets	$	73,088	$	65,092

Liabilities:
Senior and subordinated notes	$	19,518	$	14,392
Borrowings from subsidiaries	1,671		1,633
Accrued expenses and other liabilities	231		337
Total liabilities	21,420		16,362
Total stockholders’ equity	51,668		48,730
Total liabilities and stockholders’ equity	$	73,088	$	65,092

Condensed Cash Flow Statement

Table 20.3: Parent Company Statements of Cash Flows



	Year Ended December 31,
(Dollars in millions)	2018			2017			2016
Operating activities:
Net income	$	6,015		$	1,982		$	3,751
Adjustments to reconcile net income to net cash from operating activities:
Equity in undistributed earnings of subsidiaries	(3,554		)	(1,797		)	65
Other operating activities	(35		)	327			(10		)
Net cash from operating activities	2,426			512			3,806
Investing activities:
Net payments to subsidiaries	(577		)	(4,956		)	(163		)
Proceeds from paydowns and maturities of securities available for sale	140			130			71
Changes in loans to subsidiaries	(2,055		)	44			(71		)
Net cash from investing activities	(2,492		)	(4,782		)	(163		)
Financing activities:
Borrowings:
Changes in borrowings from subsidiaries	38			23			19
Issuance of senior and subordinated notes	5,227			6,948			1,487
Proceeds from paydowns and maturities of senior and subordinated notes	0			(804		)	(1,750		)
Common stock:
Net proceeds from issuances	175			164			131
Dividends paid	(773		)	(780		)	(812		)
Preferred stock:
Net proceeds from issuances	0			0			1,066
Dividends paid	(265		)	(265		)	(214		)
Purchases of treasury stock	(2,284		)	(240		)	(3,661		)
Proceeds from share-based payment activities	38			124			142
Net cash from financing activities	2,156			5,170			(3,592		)
Changes in cash and cash equivalents	2,090			900			51
Cash and cash equivalents, beginning of the period	8,196			7,296			7,245
Cash and cash equivalents, end of the period	$	10,286		$	8,196		$	7,296

Summary of Significant Accounting Policies - Segments (Details)	12 Months Ended
	Dec. 31, 2018 Segment
Accounting Policies [Abstract]
Number of Operating Segments	3
Number of Reporting Units	4

Summary of Significant Accounting Policies - Loans and Allowance for Loan and Lease Losses (Details)	12 Months Ended
	Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for delinquency status of financing receivables	30 days
Credit Card Portfolio Segment
Loans and Leases Receivable Disclosure [Line Items]
Loan origination fees and direct loan origination costs amortization period	12 months
Threshold period past due for write-off of financing receivable	180 days
Credit Card Portfolio Segment \| Privileges Revoked
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for write-off of financing receivable	120 days
Credit Card Portfolio Segment \| Notification of Death
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for write-off of financing receivable	60 days
Credit Card Portfolio Segment \| Chapter Seven Bankruptcy
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for write-off of financing receivable	30 days
Consumer Portfolio Segment
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	90 days
Consumer Portfolio Segment \| Notification of Death
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	60 days
Consumer Portfolio Segment \| Auto
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	120 days
Consumer Portfolio Segment \| Home loan
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	180 days
Consumer Portfolio Segment \| Small Business Banking Loans \| Maximum
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	120 days
Consumer Portfolio Segment \| Other Consumer Loans
Loans and Leases Receivable Disclosure [Line Items]
Threshold Period Following Bankruptcy Notice for Write-off of Financing Receivable	40 days
Consumer Portfolio Segment \| Auto and home loan [Member] \| Chapter Seven Bankruptcy
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	60 days

Summary of Significant Accounting Policies - Useful Lives for Premises and Equipment (Details)	12 Months Ended
	Dec. 31, 2018
Buildings and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives, years	5 years
Buildings and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives, years	39 years
Furniture and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives, years	3 years
Furniture and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives, years	10 years
Computers and software \| Minimum
Property, Plant and Equipment [Line Items]
Useful Lives, years	3 years
Computers and software \| Maximum
Property, Plant and Equipment [Line Items]
Useful Lives, years	3 years

Summary of Significant Accounting Policies - Customer Rewards Reserve and Revenue Recognition (Details) - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Customer Reward Program	$ 4.3	$ 3.9
Minimum
Loans and Leases Receivable Disclosure [Line Items]
Partnership Agreement Initial Term	2 years
Maximum
Loans and Leases Receivable Disclosure [Line Items]
Partnership Agreement Initial Term	10 years
Credit Card Portfolio Segment
Loans and Leases Receivable Disclosure [Line Items]
Loan Commitment and Origination Fees and Discounts or Premiums, Amortization Period	12 months
Amortization term of annual membership fees	12 months

Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Arrangements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Reduction in Interest Income	$ (24,728)	$ (23,388)	$ (21,203)
Collaborative Arrangement [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Reduction in Interest Income	$ (1,300)	$ (1,200)	$ (1,200)

Summary of Significant Accounting Policies Newly Adopted and Recently Issued But Not Yet Adopted ASU (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Securities held to maturity		$ 36,771	$ 28,984
Accumulated other comprehensive loss		(1,263)	$ (926)	$ (949)	$ (616)
Operating Lease, Liability		1,900
Operating Lease, Right-of-Use Asset		1,600
Accounting Standards Update 2018-2
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Tax Cuts and Jobs Act of 2017, reclassification from AOCI to retained earnings, tax effect	$ 173
Accounting Standards Update 2017-12
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Securities held to maturity	9,000	$ 9,000
Accumulated other comprehensive loss	82
Accumulated Other Comprehensive Income (loss), before tax	$ 107

Business Developments Consumer Home Loan Portfolio Sale (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Gain (Loss) on Securities [Line Items]
Net transfers from loans held for investment to loans held for sale	$ 855	$ 674	$ 552
Benefit for credit losses	(5,856)	(7,551)	(6,459)
Other
Gain (Loss) on Securities [Line Items]
Benefit for credit losses	49	$ (4)	$ 5
Consumer Portfolio Segment \| Home loan \| Other
Gain (Loss) on Securities [Line Items]
Gain (Loss) on Sale of Mortgage Loans	499
Benefit for credit losses	$ 46

Business Developments Restructuring Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Mergers, Acquisitions, Restructuring and Dispositions Disclosures [Abstract]
Restructuring Charges	$ 34	$ 184
Deposits transferred to the third party purchaser	$ 1,400

Investment Securities - Additional Information (Details) $ in Millions	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2018 USD ($)
Debt Securities, Available-for-sale [Line Items]
Securities available for sale	$ 46,150	$ 37,655
Securities held to maturity	$ 36,771	28,984
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	1,390
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 972	458
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 675	373
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	360
Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss	$ 466
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held	140	147
Derivative, Collateral, Obligation to Return Securities	$ 1	$ 1
Investment Securities Portfolio [Member] \| US Treasury and Government
Debt Securities, Available-for-sale [Line Items]
Percentage of portfolio	96.00%	95.00%
Accounting Standards Update 2017-12
Debt Securities, Available-for-sale [Line Items]
Securities held to maturity	$ 9,000		$ 9,000
AOCI associated with transferred held to maturity securities, pretax			535
AOCI associated with transferred held to maturity securities, after tax			$ 407
Collateral Pledged [Member]
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Held-to-maturity, Restricted	$ 16,300	$ 8,500

Investment Securities - Schedule of Available-for-Sale Securities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 46,728	$ 37,628
Gross Unrealized Gains	394	485
Gross Unrealized Losses	(972)	(458)
Fair Value	46,150	37,655
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,146	5,168
Gross Unrealized Gains	15	11
Gross Unrealized Losses	(17)	(8)
Fair Value	6,144	5,171
RMBS, Agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	32,710	26,013
Gross Unrealized Gains	62	67
Gross Unrealized Losses	(869)	(402)
Fair Value	31,903	25,678
RMBS, Non-agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,440	1,722
Gross Unrealized Gains	304	393
Gross Unrealized Losses	(2)	(1)
Fair Value	1,742	2,114
RMBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	34,150	27,735
Gross Unrealized Gains	366	460
Gross Unrealized Losses	(871)	(403)
Fair Value	33,645	27,792
CMBS, Agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,806	3,209
Gross Unrealized Gains	11	10
Gross Unrealized Losses	(78)	(44)
Fair Value	4,739	3,175
Other securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,626	1,516
Gross Unrealized Gains	2	4
Gross Unrealized Losses	(6)	(3)
Fair Value	$ 1,622	$ 1,517

Investment Securities - Investment Securities Held to Maturity (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 37,022	$ 29,823
Unrealized Losses Recorded in AOCI	(251)	(839)
Carrying Value	36,771	28,984
Gross Unrealized Gains	314	635
Gross Unrealized Losses	(466)	(182)
Fair Value	36,619	29,437
U.S. Treasury securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost		200
Unrealized Losses Recorded in AOCI		0
Carrying Value		200
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		200
RMBS, Agency
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	33,299	25,741
Unrealized Losses Recorded in AOCI	(238)	(761)
Carrying Value	33,061	24,980
Gross Unrealized Gains	293	565
Gross Unrealized Losses	(377)	(150)
Fair Value	32,977	25,395
CMBS, Agency
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	3,723	3,882
Unrealized Losses Recorded in AOCI	(13)	(78)
Carrying Value	3,710	3,804
Gross Unrealized Gains	21	70
Gross Unrealized Losses	(89)	(32)
Fair Value	$ 3,642	$ 3,842

Investment Securities - Schedule of Available-for-Sale Securities in Gross Unrealized Loss Position (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Fair Value
Less than 12 Months	$ 12,743	$ 11,614
12 Months or Longer	21,422	14,516
Total	34,165	26,130
Gross Unrealized Losses
Less than 12 Months	(297)	(85)
12 Months or Longer	(675)	(373)
Total	(972)	(458)
U.S. Treasury securities
Fair Value
Less than 12 Months	2,543	2,031
12 Months or Longer	1,076	0
Total	3,619	2,031
Gross Unrealized Losses
Less than 12 Months	(3)	(8)
12 Months or Longer	(14)	0
Total	(17)	(8)
RMBS, Agency
Fair Value
Less than 12 Months	7,863	8,192
12 Months or Longer	18,118	13,175
Total	25,981	21,367
Gross Unrealized Losses
Less than 12 Months	(260)	(67)
12 Months or Longer	(609)	(335)
Total	(869)	(402)
RMBS, Non-agency
Fair Value
Less than 12 Months	89	10
12 Months or Longer	10	10
Total	99	20
Gross Unrealized Losses
Less than 12 Months	(2)	0
12 Months or Longer	0	(1)
Total	(2)	(1)
RMBS
Fair Value
Less than 12 Months	7,952	8,202
12 Months or Longer	18,128	13,185
Total	26,080	21,387
Gross Unrealized Losses
Less than 12 Months	(262)	(67)
12 Months or Longer	(609)	(336)
Total	(871)	(403)
CMBS, Agency
Fair Value
Less than 12 Months	2,004	880
12 Months or Longer	1,540	1,236
Total	3,544	2,116
Gross Unrealized Losses
Less than 12 Months	(31)	(8)
12 Months or Longer	(47)	(36)
Total	(78)	(44)
Other securities
Fair Value
Less than 12 Months	244	501
12 Months or Longer	678	95
Total	922	596
Gross Unrealized Losses
Less than 12 Months	(1)	(2)
12 Months or Longer	(5)	(1)
Total	$ (6)	$ (3)

Investment Securities - Schedule of Contractual Maturities and Weighted-Average Yields of Securities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Securities available for sale
Due in 1 year or less	$ 693
Due after 1 year through 5 years	3,612
Due after 5 years through 10 years	7,666
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	34,179
Securities available for sale	46,150	$ 37,655
Amortized cost of securities available for sale
Due in 1 year or less	695
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost	3,642
Due after 5 years through 10 years	7,680
Due 10 Years	34,711
Amortized Cost	$ 46,728	37,628
Weighted average yield for securities available for sale
Due in 1 Year or Less	1.46%
Due 1 Year through 5 Years	2.29%
Due 5 Years through 10 Years	2.49%
Due 10 Years	2.95%
Total weighted average yield	2.80%
Carrying value of securities held to maturity
Due in 1 year or less	$ 0
Due 1 year through 5 years	69
Due after 5 years through 10 years	500
Due after 10 years	36,202
Carrying Value	36,771	28,984
Fair value of securities held to maturity
Due in 1 Year or Less	0
Due 1 Year through 5 Years	70
Due 5 Years through 10 Years	487
Due 10 Years	36,062
Fair Value	$ 36,619	29,437
Weighted average yield for securities held to maturity
Due in 1 Year or Less	0.00%
Due 1 Year through 5 Years	3.53%
Due 5 Years through 10 Years	2.95%
Due 10 Years	3.31%
Total weighted average yield	3.30%
U.S. Treasury securities
Securities available for sale
Due in 1 year or less	$ 447
Due after 1 year through 5 years	784
Due after 5 years through 10 years	4,913
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	0
Securities available for sale	6,144	5,171
Amortized cost of securities available for sale
Amortized Cost	6,146	5,168
Carrying value of securities held to maturity
Carrying Value		200
Fair value of securities held to maturity
Fair Value		200
RMBS, Agency
Securities available for sale
Due in 1 year or less	6
Due after 1 year through 5 years	23
Due after 5 years through 10 years	724
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	31,150
Securities available for sale	31,903	25,678
Amortized cost of securities available for sale
Amortized Cost	32,710	26,013
Carrying value of securities held to maturity
Due in 1 year or less	0
Due 1 year through 5 years	0
Due after 5 years through 10 years	51
Due after 10 years	33,010
Carrying Value	33,061	24,980
Fair value of securities held to maturity
Fair Value	32,977	25,395
RMBS, Non-agency
Securities available for sale
Due in 1 year or less	0
Due after 1 year through 5 years	0
Due after 5 years through 10 years	0
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	1,742
Securities available for sale	1,742	2,114
Amortized cost of securities available for sale
Amortized Cost	1,440	1,722
RMBS
Securities available for sale
Due in 1 year or less	6
Due after 1 year through 5 years	23
Due after 5 years through 10 years	724
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	32,892
Securities available for sale	33,645	27,792
Amortized cost of securities available for sale
Amortized Cost	$ 34,150	27,735
Weighted average yield for securities held to maturity
Weighted-average expected life	6 years 7 months 6 days
CMBS, Agency
Securities available for sale
Due in 1 year or less	$ 7
Due after 1 year through 5 years	1,778
Due after 5 years through 10 years	1,687
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	1,267
Securities available for sale	4,739	3,175
Amortized cost of securities available for sale
Amortized Cost	4,806	3,209
Carrying value of securities held to maturity
Due in 1 year or less	0
Due 1 year through 5 years	69
Due after 5 years through 10 years	449
Due after 10 years	3,192
Carrying Value	3,710	3,804
Fair value of securities held to maturity
Fair Value	3,642	3,842
Other securities
Securities available for sale
Due in 1 year or less	233
Due after 1 year through 5 years	1,027
Due after 5 years through 10 years	342
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	20
Securities available for sale	1,622	1,517
Amortized cost of securities available for sale
Amortized Cost	$ 1,626	$ 1,516
CMBS
Weighted average yield for securities held to maturity
Weighted-average expected life	5 years 3 months 18 days

Investment Securities - Schedule of Gross Realized Gains and Losses on Available-for-Sale Securities and OTTI Recognized in Earnings (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Realized gains (losses):
Gross realized gains	$ 13	$ 144	$ 12
Gross realized losses	(21)	(74)	(6)
Net realized gains (losses)	(8)	70	6
OTTI recognized in earnings:
Credit-related OTTI	(1)	(2)	(11)
Intent to Sell OTTI	(200)	(3)	(6)
Total OTTI recognized in earnings	(201)	(5)	(17)
Net securities gains (losses)	(209)	65	(11)
Total proceeds from sales	$ 6,399	$ 8,181	$ 4,146

Investment Securities - Schedule of Outstanding Contractual Balance and Carrying Value of Acquired Credit-Impaired Debt Securities (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Outstanding Balance and Carrying Value of Acquired Securities
Outstanding balance	$ 1,784	$ 2,131
Carrying value	$ 1,537	$ 1,843

Investment Securities - Schedule of Changes in Accretable Yield of Acquired Securities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Changes in Accretable Yield of Acquired Securities [Roll Forward]
Accretable yield beginning balance	$ 826	$ 1,173	$ 1,237
Accretion recognized in earnings	(153)	(182)	(206)
Reduction due to payoffs, disposals, transfers and other	(3)	(157)	(2)
Net reclassifications (to) from nonaccretable difference	28	(8)	144
Accretable yield ending balance	$ 698	$ 826	$ 1,173

Loans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Line Items]
Uncollectible Portion of Billed Finance Charges and Fees	$ 1,300	$ 1,400	$ 1,100
Finance Charge And Fees Reserves	468	491
Loans held for sale, at lower of cost or fair value	1,192	971
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 256	241
Loans Sold Percent Retained Servicing	100.00%
Performing
Loans and Leases Receivable Disclosure [Line Items]
Troubled debt restructurings included in impaired loans	$ 1,600	2,200
Residential Mortgage Loans And Commercial Multifamily Real Estate Loans
Loans and Leases Receivable Disclosure [Line Items]
Payments for Origination of Mortgage Loans Held-for-sale		8,400	$ 7,600
Commercial Multifamily Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Payments for Origination of Mortgage Loans Held-for-sale	8,700
Federal Home Loan banks
Loans and Leases Receivable Disclosure [Line Items]
Loans Pledged as Collateral	15,800	27,300
Line of Credit Facility, Remaining Borrowing Capacity	19,300	21,000
Federal Reserve Discount Window
Loans and Leases Receivable Disclosure [Line Items]
Loans Pledged as Collateral	9,200	9,100
Line of Credit Facility, Remaining Borrowing Capacity	7,600	7,400
Consumer Portfolio Segment \| Performing
Loans and Leases Receivable Disclosure [Line Items]
Troubled debt restructurings included in impaired loans	1,200	1,300
Commercial Banking \| Performing
Loans and Leases Receivable Disclosure [Line Items]
Troubled debt restructurings included in impaired loans	$ 282	$ 574

Loans - 90+ Day Delinquent Loans Accruing Interest and Nonperforming Loans (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	$ 2,233	$ 2,233
Nonperforming Loans	$ 813	$ 899
Percent 90 days past due and still accruing	0.91%	0.88%
Financing Receivable, Nonaccrual, Percent Past Due	0.33%	0.35%
Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	$ 2,233	$ 2,221
Nonperforming Loans	22	24
Credit Card Portfolio Segment \| Domestic credit card
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	2,111	2,093
Credit Card Portfolio Segment \| International card business
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	122	128
Nonperforming Loans	22	24
Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	0	0
Nonperforming Loans	$ 479	$ 587
Financing Receivable, Nonaccrual, Percent Past Due	0.81%	0.78%
Consumer Portfolio Segment \| Auto
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	$ 0	$ 0
Nonperforming Loans	$ 449	$ 376
Financing Receivable, Nonaccrual, Percent Past Due	0.80%	0.70%
Consumer Portfolio Segment \| Home loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	$ 0	$ 0
Nonperforming Loans	$ 0	$ 176
Financing Receivable, Nonaccrual, Percent Past Due	0.00%	1.00%
Consumer Portfolio Segment \| Retail banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	$ 0	$ 0
Nonperforming Loans	$ 30	$ 35
Financing Receivable, Nonaccrual, Percent Past Due	1.04%	1.00%
Commercial Banking
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	$ 0	$ 12
Nonperforming Loans	312	284
Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	0	12
Nonperforming Loans	306	277
Commercial Banking \| Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	0	12
Nonperforming Loans	83	38
Commercial Banking \| Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	0	0
Nonperforming Loans	223	239
Commercial Banking \| Small-ticket commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	0	0
Nonperforming Loans	6	7
Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days Past Due and Accruing	0	0
Nonperforming Loans	$ 0	$ 4

Loans - Credit Card: Risk Profile by Geographic Region and Delinquency Status (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 245,899	$ 254,473	$ 245,586
Credit Card Portfolio Segment
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 116,361	$ 114,762
Percentage of portfolio	100.00%	100.00%
Credit Card Portfolio Segment \| California
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 11,591	$ 11,475
Percentage of portfolio	10.00%	10.00%
Credit Card Portfolio Segment \| Texas
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 8,173	$ 7,847
Percentage of portfolio	7.00%	6.80%
Credit Card Portfolio Segment \| New York
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 7,400	$ 7,389
Percentage of portfolio	6.40%	6.40%
Credit Card Portfolio Segment \| Florida
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 7,086	$ 6,790
Percentage of portfolio	6.10%	5.90%
Credit Card Portfolio Segment \| Illinois
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 4,761	$ 4,734
Percentage of portfolio	4.10%	4.10%
Credit Card Portfolio Segment \| Pennsylvania
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 4,575	$ 4,550
Percentage of portfolio	3.90%	4.00%
Credit Card Portfolio Segment \| Ohio
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 3,967	$ 3,929
Percentage of portfolio	3.40%	3.40%
Credit Card Portfolio Segment \| New Jersey
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 3,641	$ 3,621
Percentage of portfolio	3.10%	3.20%
Credit Card Portfolio Segment \| Michigan
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 3,544	$ 3,523
Percentage of portfolio	3.00%	3.10%
Credit Card Portfolio Segment \| Other
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 52,612	$ 51,435
Percentage of portfolio	45.30%	44.80%
Credit Card Portfolio Segment \| Canada
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 6,023	$ 6,286
Percentage of portfolio	5.10%	5.50%
Credit Card Portfolio Segment \| United Kingdom
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 2,988	$ 3,183
Percentage of portfolio	2.60%	2.80%
Credit Card Portfolio Segment \| Domestic credit card
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 107,350	$ 105,293
Percentage of portfolio	92.30%	91.70%
Credit Card Portfolio Segment \| International card business
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 9,011	$ 9,469
Percentage of portfolio	7.70%	8.30%

Loans - Credit Card: Net Charge-Offs (Detail) - Credit Card Portfolio Segment - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Line Items]
Net charge-offs	$ 5,069	$ 5,054	$ 3,953
Percentage annualized net charge-off by average loans held for investment	4.62%	4.88%	4.09%
Domestic credit card
Loans and Leases Receivable Disclosure [Line Items]
Net charge-offs	$ 4,782	$ 4,739	$ 3,681
Percentage annualized net charge-off by average loans held for investment	4.74%	4.99%	4.16%
International card business
Loans and Leases Receivable Disclosure [Line Items]
Net charge-offs	$ 287	$ 315	$ 272
Percentage annualized net charge-off by average loans held for investment	3.19%	3.69%	3.33%

Loans - Consumer Banking: Risk Profile by Geographic Region, Delinquency Status and Performing Status (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 245,899	$ 254,473	$ 245,586
Consumer Portfolio Segment
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 59,205	$ 75,078
Percentage of portfolio	100.00%	100.00%
Consumer Portfolio Segment \| Auto
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 56,341	$ 53,991
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 56,341	$ 53,991
Percentage of portfolio	95.20%	71.90%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| Texas
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 7,264	$ 7,040
Percentage of portfolio	12.30%	9.40%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| California
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 6,352	$ 6,099
Percentage of portfolio	10.70%	8.10%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| Florida
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 4,623	$ 4,486
Percentage of portfolio	7.80%	6.00%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| Georgia
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 2,665	$ 2,726
Percentage of portfolio	4.50%	3.60%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| Ohio
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 2,502	$ 2,318
Percentage of portfolio	4.20%	3.10%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| Louisiana
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 2,174	$ 2,236
Percentage of portfolio	3.70%	3.00%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| Illinois
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 2,171	$ 2,181
Percentage of portfolio	3.70%	2.90%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| Pennsylvania
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 2,167	$ 2,014
Percentage of portfolio	3.70%	2.70%
Consumer Portfolio Segment \| Auto \| Loans Receivable \| Geographic Concentration Risk \| Other
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 26,423	$ 24,891
Percentage of portfolio	44.60%	33.10%
Consumer Portfolio Segment \| Retail banking
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 2,864	$ 3,454
Consumer Portfolio Segment \| Retail banking \| Loans Receivable \| Geographic Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 2,864	$ 3,454
Percentage of portfolio	4.80%	4.60%
Consumer Portfolio Segment \| Retail banking \| Loans Receivable \| Geographic Concentration Risk \| Texas
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 647	$ 717
Percentage of portfolio	1.10%	0.90%
Consumer Portfolio Segment \| Retail banking \| Loans Receivable \| Geographic Concentration Risk \| Louisiana
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 772	$ 953
Percentage of portfolio	1.30%	1.30%
Consumer Portfolio Segment \| Retail banking \| Loans Receivable \| Geographic Concentration Risk \| Other
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 109	$ 267
Percentage of portfolio	0.20%	0.40%
Consumer Portfolio Segment \| Retail banking \| Loans Receivable \| Geographic Concentration Risk \| New York
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 837	$ 955
Percentage of portfolio	1.40%	1.30%
Consumer Portfolio Segment \| Retail banking \| Loans Receivable \| Geographic Concentration Risk \| New Jersey
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 201	$ 221
Percentage of portfolio	0.30%	0.30%
Consumer Portfolio Segment \| Retail banking \| Loans Receivable \| Geographic Concentration Risk \| Maryland
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 161	$ 187
Percentage of portfolio	0.30%	0.20%
Consumer Portfolio Segment \| Retail banking \| Loans Receivable \| Geographic Concentration Risk \| Virginia
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 137	$ 154
Percentage of portfolio	0.20%	0.20%
Consumer Portfolio Segment \| Home loan
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment		$ 17,633
Consumer Portfolio Segment \| Home loan \| Loans Receivable \| Geographic Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage of portfolio	0.00%	23.50%
Consumer Portfolio Segment \| Home loan \| Home Loans Receivable \| Geographic Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Loans held for investment	$ 0	$ 17,633

Loans - Consumer Banking: Net Charge-Offs and Nonperforming Loans (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable Disclosure [Line Items]
Nonperforming Loans	$ 813	$ 899
Financing Receivable, Nonaccrual, Percent Past Due	0.33%	0.35%
Consumer Portfolio Segment
Loans and Leases Receivable Disclosure [Line Items]
Net charge-offs	$ 981	$ 1,038	$ 820
Percentage annualized net charge-off by average loans held for investment	1.51%	1.39%	1.15%
Nonperforming Loans	$ 479	$ 587
Financing Receivable, Nonaccrual, Percent Past Due	0.81%	0.78%
Consumer Portfolio Segment \| Auto
Loans and Leases Receivable Disclosure [Line Items]
Net charge-offs	$ 912	$ 957	$ 752
Percentage annualized net charge-off by average loans held for investment	1.64%	1.86%	1.69%
Nonperforming Loans	$ 449	$ 376
Financing Receivable, Nonaccrual, Percent Past Due	0.80%	0.70%
Consumer Portfolio Segment \| Home loan
Loans and Leases Receivable Disclosure [Line Items]
Net charge-offs	$ (1)	$ 15	$ 14
Percentage annualized net charge-off by average loans held for investment	(0.02%)	0.08%	0.06%
Nonperforming Loans	$ 0	$ 176
Financing Receivable, Nonaccrual, Percent Past Due	0.00%	1.00%
Consumer Portfolio Segment \| Retail banking
Loans and Leases Receivable Disclosure [Line Items]
Net charge-offs	$ 70	$ 66	$ 54
Percentage annualized net charge-off by average loans held for investment	2.26%	1.92%	1.53%
Nonperforming Loans	$ 30	$ 35
Financing Receivable, Nonaccrual, Percent Past Due	1.04%	1.00%

Loans - Impaired Loans, Excluding Acquired Loans (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Impaired Financing Receivable:
With an Allowance	$ 1,591	$ 2,052
Without an Allowance	253	393
Total Recorded Investment	1,844	2,445
Related Allowance	338	421
Net Recorded Investment	1,506	2,024
Unpaid Principal Balance	2,040	2,882
Average Recorded Investment	2,105	2,868	$ 2,930
Interest Income Recognized	145	155	177
Credit Card Portfolio Segment
Impaired Financing Receivable:
With an Allowance	855	812
Without an Allowance	0	0
Total Recorded Investment	855	812
Related Allowance	277	292
Net Recorded Investment	578	520
Unpaid Principal Balance	837	792
Average Recorded Investment	839	756	673
Interest Income Recognized	75	74	68
Credit Card Portfolio Segment \| Domestic credit card
Impaired Financing Receivable:
With an Allowance	666	639
Without an Allowance	0	0
Total Recorded Investment	666	639
Related Allowance	186	208
Net Recorded Investment	480	431
Unpaid Principal Balance	654	625
Average Recorded Investment	655	602	540
Interest Income Recognized	63	63	58
Credit Card Portfolio Segment \| International card business
Impaired Financing Receivable:
With an Allowance	189	173
Without an Allowance	0	0
Total Recorded Investment	189	173
Related Allowance	91	84
Net Recorded Investment	98	89
Unpaid Principal Balance	183	167
Average Recorded Investment	184	154	133
Interest Income Recognized	12	11	10
Consumer Portfolio Segment
Impaired Financing Receivable:
With an Allowance	343	606
Without an Allowance	50	169
Total Recorded Investment	393	775
Related Allowance	27	53
Net Recorded Investment	366	722
Unpaid Principal Balance	480	1,094
Average Recorded Investment	547	853	924
Interest Income Recognized	48	59	93
Consumer Portfolio Segment \| Auto
Impaired Financing Receivable:
With an Allowance	301	363
Without an Allowance	38	118
Total Recorded Investment	339	481
Related Allowance	22	30
Net Recorded Investment	317	451
Unpaid Principal Balance	420	730
Average Recorded Investment	397	495	501
Interest Income Recognized	45	53	86
Consumer Portfolio Segment \| Home loan
Impaired Financing Receivable:
With an Allowance		192
Without an Allowance		41
Total Recorded Investment		233
Related Allowance		15
Net Recorded Investment		218
Unpaid Principal Balance		298
Average Recorded Investment	91	299	361
Interest Income Recognized	1	5	5
Consumer Portfolio Segment \| Retail banking
Impaired Financing Receivable:
With an Allowance	42	51
Without an Allowance	12	10
Total Recorded Investment	54	61
Related Allowance	5	8
Net Recorded Investment	49	53
Unpaid Principal Balance	60	66
Average Recorded Investment	59	59	62
Interest Income Recognized	2	1	2
Commercial Banking
Impaired Financing Receivable:
With an Allowance	393	634
Without an Allowance	203	224
Total Recorded Investment	596	858
Related Allowance	34	76
Net Recorded Investment	562	782
Unpaid Principal Balance	723	996
Average Recorded Investment	719	1,259	1,333
Interest Income Recognized	22	22	16
Commercial Banking \| Total commercial lending
Impaired Financing Receivable:
With an Allowance	393	627
Without an Allowance	197	224
Total Recorded Investment	590	851
Related Allowance	34	76
Net Recorded Investment	556	775
Unpaid Principal Balance	714	987
Average Recorded Investment	714	1,252	1,326
Interest Income Recognized	22	22	16
Commercial Banking \| Commercial and multifamily real estate
Impaired Financing Receivable:
With an Allowance	92	138
Without an Allowance	28	2
Total Recorded Investment	120	140
Related Allowance	5	13
Net Recorded Investment	115	127
Unpaid Principal Balance	121	143
Average Recorded Investment	93	134	111
Interest Income Recognized	2	4	3
Commercial Banking \| Commercial and industrial
Impaired Financing Receivable:
With an Allowance	301	489
Without an Allowance	169	222
Total Recorded Investment	470	711
Related Allowance	29	63
Net Recorded Investment	441	648
Unpaid Principal Balance	593	844
Average Recorded Investment	621	1,118	1,215
Interest Income Recognized	20	18	13
Commercial Banking \| Small-ticket commercial real estate
Impaired Financing Receivable:
With an Allowance	0	7
Without an Allowance	6	0
Total Recorded Investment	6	7
Related Allowance	0	0
Net Recorded Investment	6	7
Unpaid Principal Balance	9	9
Average Recorded Investment	5	7	7
Interest Income Recognized	$ 0	$ 0	$ 0

Loans - TDR - Subsequent Defaults of Completed TDR Modifications (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) Contract	Dec. 31, 2017 USD ($) Contract	Dec. 31, 2016 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	129,120	116,523	91,597
Total Loans \| $	$ 437	$ 594	$ 550
Credit Card Portfolio Segment
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	122,084	106,762	82,748
Total Loans \| $	$ 232	$ 204	$ 155
Consumer Portfolio Segment
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	7,009	9,515	8,691
Total Loans \| $	$ 82	$ 120	$ 112
Consumer Portfolio Segment \| Auto
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	6,980	9,446	8,587
Total Loans \| $	$ 79	$ 109	$ 96
Consumer Portfolio Segment \| Home loan
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	3	28	56
Total Loans \| $	$ 1	$ 7	$ 7
Consumer Portfolio Segment \| Retail banking
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	26	41	48
Total Loans \| $	$ 2	$ 4	$ 9
Commercial Banking
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	27	246	158
Total Loans \| $	$ 123	$ 270	$ 283
Commercial Banking \| Total commercial lending
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	27	244	151
Total Loans \| $	$ 123	$ 269	$ 282
Commercial Banking \| Commercial and multifamily real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	1	0	1
Total Loans \| $	$ 3	$ 0	$ 1
Commercial Banking \| Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	26	244	150
Total Loans \| $	$ 120	$ 269	$ 281
Commercial Banking \| Small-ticket commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	0	2	7
Total Loans \| $	$ 0	$ 1	$ 1
Domestic credit card \| Credit Card Portfolio Segment
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	61,070	55,121	42,250
Total Loans \| $	$ 126	$ 111	$ 73
International card business \| Credit Card Portfolio Segment
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	61,014	51,641	40,498
Total Loans \| $	$ 106	$ 93	$ 82

Allowance for Loan and Lease Losses - Summary of Changes in Allowance for Loan and Lease Losses (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	$ 7,502
Balance at end of the period	7,220	$ 7,502
Benefit for credit losses	5,856	7,551	$ 6,459
Total Allowance
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	7,502	6,503	5,130
Charge-offs	(8,615)	(8,513)	(6,555)
Recoveries	2,503	1,951	1,493
Net charge-offs	(6,112)	(6,562)	(5,062)
Provision (benefit) for loan and lease losses	5,858	7,563	6,491
Allowance build (release) for loan and lease losses	(254)	1,001	1,429
Other changes	(28)	(2)	(56)
Balance at end of the period	7,220	7,502	6,503
Unfunded Lending Commitments Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	124	136	168
Provision (benefit) for loan and lease losses	(2)	(12)	(32)
Balance at end of the period	122	124	136
Combined Allowance & Unfunded Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	7,626	6,639
Balance at end of the period	7,342	7,626	6,639
Credit Card Portfolio Segment
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	5,648	4,606	3,654
Charge-offs	(6,657)	(6,321)	(5,019)
Recoveries	1,588	1,267	1,066
Net charge-offs	(5,069)	(5,054)	(3,953)
Provision (benefit) for loan and lease losses	4,984	6,066	4,926
Allowance build (release) for loan and lease losses	(85)	1,012	973
Other changes	(28)	30	(21)
Balance at end of the period	5,535	5,648	4,606
Credit Card Portfolio Segment \| Unfunded Lending Commitments Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	0	0	0
Provision (benefit) for loan and lease losses	0	0	0
Balance at end of the period	0	0	0
Credit Card Portfolio Segment \| Combined Allowance & Unfunded Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	5,648	4,606
Balance at end of the period	5,535	5,648	4,606
Consumer Portfolio Segment
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	1,242	1,102	868
Charge-offs	(1,832)	(1,677)	(1,226)
Recoveries	851	639	406
Net charge-offs	(981)	(1,038)	(820)
Provision (benefit) for loan and lease losses	841	1,180	1,055
Allowance build (release) for loan and lease losses	(140)	142	235
Other changes	(54)	(2)	(1)
Balance at end of the period	1,048	1,242	1,102
Consumer Portfolio Segment \| Unfunded Lending Commitments Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	7	7	7
Provision (benefit) for loan and lease losses	(3)	0	0
Balance at end of the period	4	7	7
Consumer Portfolio Segment \| Combined Allowance & Unfunded Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	1,249	1,109
Balance at end of the period	1,052	1,249	1,109
Consumer Portfolio Segment \| Home loan
Allowance for Loan and Lease Losses [Roll Forward]
Net charge-offs	1	(15)	(14)
Commercial Banking
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	611	793	604
Charge-offs	(119)	(481)	(307)
Recoveries	63	16	15
Net charge-offs	(56)	(465)	(292)
Provision (benefit) for loan and lease losses	82	313	515
Allowance build (release) for loan and lease losses	26	(152)	223
Other changes	0	(30)	(34)
Balance at end of the period	637	611	793
Commercial Banking \| Unfunded Lending Commitments Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	117	129	161
Provision (benefit) for loan and lease losses	1	(12)	(32)
Balance at end of the period	118	117	129
Commercial Banking \| Combined Allowance & Unfunded Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	728	922
Balance at end of the period	755	728	922
Other
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	1	2	4
Charge-offs	(7)	(34)	(3)
Recoveries	1	29	6
Net charge-offs	(6)	(5)	3
Provision (benefit) for loan and lease losses	(49)	4	(5)
Allowance build (release) for loan and lease losses	(55)	(1)	(2)
Other changes	54	0	0
Balance at end of the period	0	1	2
Other \| Unfunded Lending Commitments Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	0	0	0
Provision (benefit) for loan and lease losses	0	0	0
Balance at end of the period	0	0	0
Other \| Combined Allowance & Unfunded Reserve
Allowance for Loan and Lease Losses [Roll Forward]
Balance as beginning of the period	1	2
Balance at end of the period	0	1	2
Other
Allowance for Loan and Lease Losses [Roll Forward]
Benefit for credit losses	(49)	$ 4	$ (5)
Other \| Consumer Portfolio Segment \| Home loan
Allowance for Loan and Lease Losses [Roll Forward]
Gain (Loss) on Sale of Mortgage Loans	499
Benefit for credit losses	(46)
Other \| Home Loans Receivable
Allowance for Loan and Lease Losses [Roll Forward]
Gain (Loss) on Sale of Mortgage Loans	499
Benefit for credit losses	$ 46

Allowance for Loan and Lease Losses - Components of Allowance for Loan and Lease Losses by Impairment Methodology (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for loan and lease losses by impairment methodology:
Collectively evaluated	$ 6,882	$ 7,044
Asset-specific	338	421
Total allowance for loan and lease losses	7,220	7,502
Loans held for investment by impairment methodology:
Collectively evaluated	243,920	241,323
Asset-specific	1,844	2,375
Loans held for investment	$ 245,899	$ 254,473	$ 245,586
Allowance as a percentage of period-end loans held for investment	2.94%	2.95%
Credit Card Portfolio Segment
Allowance for loan and lease losses by impairment methodology:
Collectively evaluated	$ 5,258	$ 5,356
Asset-specific	277	292
Total allowance for loan and lease losses	5,535	5,648	4,606	$ 3,654
Loans held for investment by impairment methodology:
Collectively evaluated	115,505	113,948
Asset-specific	855	812
Loans held for investment	$ 116,361	$ 114,762
Allowance as a percentage of period-end loans held for investment	4.76%	4.92%
Consumer Portfolio Segment
Allowance for loan and lease losses by impairment methodology:
Collectively evaluated	$ 1,021	$ 1,158
Asset-specific	27	53
Total allowance for loan and lease losses	1,048	1,242	1,102	868
Loans held for investment by impairment methodology:
Collectively evaluated	58,808	64,080
Asset-specific	393	705
Loans held for investment	$ 59,205	$ 75,078
Allowance as a percentage of period-end loans held for investment	1.77%	1.65%
Commercial Banking
Allowance for loan and lease losses by impairment methodology:
Collectively evaluated	$ 603	$ 529
Asset-specific	34	76
Total allowance for loan and lease losses	637	611	793	604
Loans held for investment by impairment methodology:
Collectively evaluated	69,607	63,237
Asset-specific	596	858
Loans held for investment	$ 70,333	$ 64,575
Allowance as a percentage of period-end loans held for investment	0.91%	0.95%
Other
Allowance for loan and lease losses by impairment methodology:
Collectively evaluated		$ 1
Asset-specific		0
Total allowance for loan and lease losses	$ 0	1	$ 2	$ 4
Loans held for investment by impairment methodology:
Collectively evaluated		58
Asset-specific		0
Loans held for investment		$ 58
Allowance as a percentage of period-end loans held for investment		1.72%
Financial Asset Acquired with Credit Deterioration [Member]
Allowance for loan and lease losses by impairment methodology:
Financing Receivable, Allowance for Credit Losses		$ 37
Loans held for investment by impairment methodology:
Loans held for investment	135	10,775
Financial Asset Acquired with Credit Deterioration [Member] \| Credit Card Portfolio Segment
Allowance for loan and lease losses by impairment methodology:
Financing Receivable, Allowance for Credit Losses		0
Loans held for investment by impairment methodology:
Loans held for investment	1	2
Financial Asset Acquired with Credit Deterioration [Member] \| Consumer Portfolio Segment
Allowance for loan and lease losses by impairment methodology:
Financing Receivable, Allowance for Credit Losses		31
Loans held for investment by impairment methodology:
Loans held for investment	4	10,293
Financial Asset Acquired with Credit Deterioration [Member] \| Commercial Banking
Allowance for loan and lease losses by impairment methodology:
Financing Receivable, Allowance for Credit Losses		6
Loans held for investment by impairment methodology:
Loans held for investment	$ 130	480
Financial Asset Acquired with Credit Deterioration [Member] \| Other
Allowance for loan and lease losses by impairment methodology:
Financing Receivable, Allowance for Credit Losses		0
Loans held for investment by impairment methodology:
Loans held for investment		$ 0

Allowance for Loan and Lease Losses Allowance for Loan and Lease Losses - Loss Sharing Arrangements (Details) - Loss Sharing Agreement [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Expected reimbursement from loss sharing partners, beginning balance	$ 380	$ 228	$ 194
Amounts due from partners which reduced net charge-offs	(382)	(285)	(229)
Amounts estimated to be charged to partners which reduced provision for credit losses	381	437	263
Expected reimbursement from loss sharing partners, ending balance	$ 379	$ 380	$ 228

Variable Interest Entities and Securitizations - Carrying Amount of Assets and Liabilities of Variable Interest Entities (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Carrying Amount of Assets, Consolidated	$ 35,556	$ 36,700
Carrying Amount of Liabilities, Consolidated	19,019	20,790
Carrying Amount of Assets, Unconsolidated	4,802	4,948
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	1,377	1,674
Maximum exposure to loss	5,145	5,550
Affordable housing entities
Variable Interest Entity [Line Items]
Carrying Amount of Assets, Consolidated	243	226
Carrying Amount of Liabilities, Consolidated	17	10
Carrying Amount of Assets, Unconsolidated	4,238	4,175
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	1,303	1,284
Maximum exposure to loss	4,238	4,175
Variable Interest Entities, nonconsolidated, Carrying amount of Assets included in certain investment structures	2,300	2,200
Variable Interest Entities, nonconsolidated, Carrying amount of liabilities included in certain investment structures	811	901
Entities that provide capital to low-income and rural communities
Variable Interest Entity [Line Items]
Carrying Amount of Assets, Consolidated	1,739	1,498
Carrying Amount of Liabilities, Consolidated	117	129
Carrying Amount of Assets, Unconsolidated	0	0
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	0	0
Maximum exposure to loss	0	0
Other
Variable Interest Entity [Line Items]
Carrying Amount of Assets, Consolidated	0	0
Carrying Amount of Liabilities, Consolidated	0	0
Carrying Amount of Assets, Unconsolidated	353	318
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	0	0
Maximum exposure to loss	353	318
Total Other VIEs
Variable Interest Entity [Line Items]
Carrying Amount of Assets, Consolidated	1,982	1,724
Carrying Amount of Liabilities, Consolidated	134	139
Carrying Amount of Assets, Unconsolidated	4,591	4,493
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	1,303	1,284
Maximum exposure to loss	4,591	4,493
Credit card loan securitizations
Variable Interest Entity [Line Items]
Carrying Amount of Assets, Consolidated	33,574	34,976
Carrying Amount of Liabilities, Consolidated	18,885	20,651
Carrying Amount of Assets, Unconsolidated	0	0
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	0	0
Maximum exposure to loss	0	0
Home loan
Variable Interest Entity [Line Items]
Carrying Amount of Assets, Consolidated	0	0
Carrying Amount of Liabilities, Consolidated	0	0
Carrying Amount of Assets, Unconsolidated	211	455
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	74	390
Maximum exposure to loss	554	1,057
Total securitization-related VIEs
Variable Interest Entity [Line Items]
Carrying Amount of Assets, Consolidated	33,574	34,976
Carrying Amount of Liabilities, Consolidated	18,885	20,651
Carrying Amount of Assets, Unconsolidated	211	455
Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities	74	390
Maximum exposure to loss	$ 554	$ 1,057

Variable Interest Entities and Securitizations - External Debt and Receivable Balances of Securitization Programs (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity, Primary Beneficiary
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities held by third-party investors, non-mortgage	$ 18,307	$ 20,010
Receivables in the trust, non-mortgage	34,197	35,667
Cash balance of spread or reserve accounts, non-mortgage	0	0
Variable Interest Entity, Not Primary Beneficiary
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities held by third-party investors, mortgage	1,276	1,774
Receivables in the trust, mortgage	1,305	1,812
Cash balance of spread or reserve accounts, mortgage	$ 116	$ 124

Variable Interest Entities and Securitizations - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Amortization Method Qualified Affordable Housing Project Investments, Amortization	$ 477	$ 582
Affordable Housing Tax Credits And Other Tax Benefits, Amount	529	504
Amortization Method Qualified Affordable Housing Project Investments	4,200	3,900
Qualified Affordable Housing Project Investments, Commitment	1,500	1,400
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	4,802	4,948
Variable Interest Entity, Consolidated, Carrying Amount, Assets	35,556	36,700
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	5,145	5,550
Affordable housing entities
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	4,238	4,175
Total assets of the unconsolidated VIE investment funds	10,800	11,500
Variable Interest Entity, Consolidated, Carrying Amount, Assets	243	226
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	4,238	4,175
Entities that provide capital to low-income and rural communities
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	0	0
Variable Interest Entity, Consolidated, Carrying Amount, Assets	1,739	1,498
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	0	0
Other
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	353	318
Variable Interest Entity, Consolidated, Carrying Amount, Assets	0	0
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 353	$ 318

Goodwill and Intangible Assets - Components (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Intangible Assets by Major Class [Line Items]
Goodwill, Gross	$ 14,544	$ 14,533
Goodwill	14,544	14,533	$ 14,519	$ 14,480
Intangible Assets, Gross (Excluding Goodwill)	3,522	3,554
Accumulated Amortization	(3,268)	(3,133)
Intangible Assets, Net (Excluding Goodwill)	254	421
Intangible Assets Gross Including Goodwill	18,066	18,087
Total goodwill and other intangible assets, Net Carrying Value	14,798	14,954
Consumer MSRs		92
Commercial MSRs, Gross	459	355
Commercial MSR, Accumulated Amortization	(185)	(126)
Total MSRs, Gross		447
Servicing Asset at Amortized Cost	$ 274	229
Total MSRs, Net		$ 321
Finite-Lived Intangible Assets, Remaining Amortization Period	5 years	4 years 10 months 24 days
Servicing Asset at Amortized Cost, Amortization	$ 59	$ 44
PCCR intangibles
Schedule of Intangible Assets by Major Class [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	2,102	2,105
Accumulated Amortization	(1,952)	(1,844)
Intangible Assets, Net (Excluding Goodwill)	$ 150	$ 261
Finite-Lived Intangible Assets, Remaining Amortization Period	3 years 8 months 12 days	3 years 7 months 6 days
Core deposit intangibles
Schedule of Intangible Assets by Major Class [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 1,149	$ 1,149
Accumulated Amortization	(1,148)	(1,133)
Intangible Assets, Net (Excluding Goodwill)	$ 1	$ 16
Finite-Lived Intangible Assets, Remaining Amortization Period	2 months 12 days	1 year
Other Intangible Assets [Member]
Schedule of Intangible Assets by Major Class [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 271	$ 300
Accumulated Amortization	(168)	(156)
Intangible Assets, Net (Excluding Goodwill)	$ 103	$ 144
Finite-Lived Intangible Assets, Remaining Amortization Period	7 years 1 month 6 days	7 years 9 months 18 days

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 0	$ 0	$ 17

Goodwill and Intangible Assets - Goodwill Attributable to Each Business Segments (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 14,533	$ 14,519	$ 14,480
Goodwill, Acquired During Period	33	6	54
Goodwill, Written off Related to Sale of Business Unit	(17)
Other adjustments	(5)	8	(15)
Goodwill, Ending Balance	14,544	14,533	14,519
Credit Card
Goodwill [Roll Forward]
Goodwill, Beginning Balance	5,032	5,018	4,997
Goodwill, Acquired During Period	33	6	36
Goodwill, Written off Related to Sale of Business Unit	0
Other adjustments	(5)	8	(15)
Goodwill, Ending Balance	5,060	5,032	5,018
Consumer Banking
Goodwill [Roll Forward]
Goodwill, Beginning Balance	4,600	4,600	4,600
Goodwill, Acquired During Period	0	0	0
Goodwill, Written off Related to Sale of Business Unit	0
Other adjustments	0	0	0
Goodwill, Ending Balance	4,600	4,600	4,600
Commercial Banking
Goodwill [Roll Forward]
Goodwill, Beginning Balance	4,901	4,901	4,883
Goodwill, Acquired During Period	0	0	18
Goodwill, Written off Related to Sale of Business Unit	(17)
Other adjustments	0	0	0
Goodwill, Ending Balance	$ 4,884	$ 4,901	$ 4,901

Goodwill and Intangible Assets - Actual and Estimated Future Amortization Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 174	$ 245	$ 386
Estimated future amounts for the year ended December 31,
2019	109
2020	58
2021	28
2022	20
2023	14
Thereafter	17
Net Carrying Amount	$ 246

Premises, Equipment & Lease Commitments Premises, Equipment & Lease Commitments - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment and Lease Commitments [Abstract]
Depreciation and amortization expense	$ 728	$ 662	$ 710
Total rent expenses from continuing operations	322	$ 307	$ 330
Minimum sublease rental income due in future years	$ 183

Premises, Equipment & Lease Commitments Premises, Equipment & Lease Commitments - Components of Premises and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Total premises and equipment, gross	$ 8,727	$ 8,264
Less: Accumulated depreciation and amortization	(4,536)	(4,231)
Total premises and equipment, net	4,191	4,033
Land
Property, Plant and Equipment [Line Items]
Total premises and equipment, gross	386	406
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total premises and equipment, gross	3,994	3,302
Furniture and equipment
Property, Plant and Equipment [Line Items]
Total premises and equipment, gross	2,018	1,901
Computer software
Property, Plant and Equipment [Line Items]
Total premises and equipment, gross	1,847	1,753
In progress
Property, Plant and Equipment [Line Items]
Total premises and equipment, gross	$ 482	$ 902

Premises, Equipment & Lease Commitments Premises, Equipment & Lease Commitments - Future Minimum Rental Commitments (Details) $ in Millions	Dec. 31, 2018 USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019	$ 352
2020	309
2021	279
2022	249
2023	213
Thereafter	949
Total	$ 2,351

Deposits and Borrowings - Deposits and Short-term Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deposits:
Non-interest-bearing deposits	$ 23,483	$ 26,404
Interest-bearing deposits	226,281	217,298
Total deposits	249,764	243,702	$ 236,768
Short-term borrowings
Short-term borrowings	9,402	576
Time Deposits, at or Above FDIC Insurance Limit	4,000	1,300
Federal funds purchased and securities loaned or sold under agreements to repurchase
Short-term borrowings
Short-term borrowings	352	576
Federal Home Loan Bank Advances
Short-term borrowings
Short-term borrowings	$ 9,050	$ 0

Deposits and Borrowings - Long-Term Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term Debt and Capital Lease Obligations	$ 49,503	$ 59,705
Debt and Capital Lease Obligations	58,905	60,281
Time Deposits, at or Above FDIC Insurance Limit	$ 4,000	1,300
Securitized debt obligations
Debt Instrument [Line Items]
Weighted average interest rate	2.31%
Long-term debt	$ 18,307	20,010
Total senior and subordinated notes
Debt Instrument [Line Items]
Long-term debt	$ 30,826	30,755
Senior notes \| Total unsecured senior debt
Debt Instrument [Line Items]
Weighted average interest rate	3.08%
Long-term debt	$ 26,283	26,222
Senior notes \| Fixed unsecured senior debt
Debt Instrument [Line Items]
Weighted average interest rate	3.03%
Long-term debt	$ 23,290	22,776
Senior notes \| Floating unsecured senior debt
Debt Instrument [Line Items]
Weighted average interest rate	3.39%
Long-term debt	$ 2,993	3,446
Subordinated notes \| Fixed unsecured subordinated debt
Debt Instrument [Line Items]
Weighted average interest rate	4.09%
Long-term debt	$ 4,543	4,533
FHLB advances
Debt Instrument [Line Items]
Weighted average interest rate	2.49%
Long-term debt	$ 251	8,609
Capital Lease Obligation and GPMH
Debt Instrument [Line Items]
Weighted average interest rate	6.16%
Long-term debt	$ 119	331
FHLB Advance Capital Lease Obligation and GPMH
Debt Instrument [Line Items]
Long-term debt	$ 370	$ 8,940
Minimum \| Securitized debt obligations
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.33%
Minimum \| Senior notes \| Fixed unsecured senior debt
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.85%
Minimum \| Senior notes \| Floating unsecured senior debt
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.97%
Minimum \| Subordinated notes \| Fixed unsecured subordinated debt
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.38%
Minimum \| FHLB advances
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.48%
Minimum \| Capital Lease Obligation and GPMH
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.00%
Maximum \| Securitized debt obligations
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.31%
Maximum \| Senior notes \| Fixed unsecured senior debt
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Maximum \| Senior notes \| Floating unsecured senior debt
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.72%
Maximum \| Subordinated notes \| Fixed unsecured subordinated debt
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.80%
Maximum \| FHLB advances
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.36%
Maximum \| Capital Lease Obligation and GPMH
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	13.63%

Deposits and Borrowings Deposits and Borrowings - Schedule of Maturity Profile of Borrowing and Debt (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Time Deposits, Fiscal Year Maturity:
2019	$ 22,548
2020	6,524
2021	4,065
2022	4,036
2023	1,176
Thereafter	122
Total	38,471
Debt Fiscal Year Maturity:
Short-term borrowings	9,402	$ 576
Total, Fiscal Year Maturity:
2019	44,119
2020	16,450
2021	11,289
2022	9,077
2023	6,058
Thereafter	10,383
Total	97,376
Securitized debt obligations
Debt Fiscal Year Maturity:
2019	6,845
2020	5,266
2021	2,298
2022	2,531
2023	714
Thereafter	653
Long-term Debt	18,307	20,010
Senior and subordinated notes
Debt Fiscal Year Maturity:
2019	5,314
2020	4,350
2021	4,920
2022	2,504
2023	4,163
Thereafter	9,575
Long-term Debt	30,826	30,755
Other borrowings
Debt Fiscal Year Maturity:
2019	9,060
2020	310
2021	6
2022	6
2023	5
Thereafter	33
Long-term Debt	9,420
Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member]
Debt Fiscal Year Maturity:
Short-term debt, maturities, next 12 months	352
Short-term borrowings	$ 352	$ 576

Derivative Instruments and Hedging Activities - Notional and Fair Values of Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	$ 212,505	$ 196,612
Derivative Assets, Gross Amount	1,539	1,040
Derivative Liabilities, Gross Amount	1,201	1,268
Derivative Asset, Netting Adjustments	(1,079)	(275)
Derivative Liability, Netting Adjustments	(287)	(662)
Derivative Assets	460	765
Derivative Liability	914	606
Cumulative counterparty credit risk valuation adjustment	3	2
Cumulative credit risk valuation adjustment related to our credit quality	1	1
Decrease/(Increase) In Derivative Assets Due To LCH Rulebook Change	431
Decrease In Derivative Liabilities Due To LCH Rulebook Change	397
Derivatives designated as accounting hedges
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	142,965	143,026
Derivative Assets, Gross Amount	509	152
Derivative Liabilities, Gross Amount	100	528
Derivatives designated as accounting hedges \| Interest rate contracts
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	134,613	133,904
Derivative Assets, Gross Amount	147	132
Derivative Liabilities, Gross Amount	98	289
Derivatives designated as accounting hedges \| Interest rate contracts \| Fair value hedges
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	53,413	56,604
Derivative Assets, Gross Amount	64	102
Derivative Liabilities, Gross Amount	28	164
Derivatives designated as accounting hedges \| Interest rate contracts \| Cash flow hedges
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	81,200	77,300
Derivative Assets, Gross Amount	83	30
Derivative Liabilities, Gross Amount	70	125
Derivatives designated as accounting hedges \| Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	8,352	9,122
Derivative Assets, Gross Amount	362	20
Derivative Liabilities, Gross Amount	2	239
Derivatives designated as accounting hedges \| Foreign exchange contracts \| Cash flow hedges
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	5,745	6,086
Derivative Assets, Gross Amount	184	19
Derivative Liabilities, Gross Amount	2	75
Derivatives designated as accounting hedges \| Foreign exchange contracts \| Net investment hedges
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	2,607	3,036
Derivative Assets, Gross Amount	178	1
Derivative Liabilities, Gross Amount	0	164
Derivatives not designated as accounting hedges
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	69,540	53,586
Derivative Assets, Gross Amount	1,030	888
Derivative Liabilities, Gross Amount	1,101	740
Derivatives not designated as accounting hedges \| Customer accommodation
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	61,477	48,520
Derivative Assets, Gross Amount	999	848
Derivative Liabilities, Gross Amount	1,053	727
Derivatives not designated as accounting hedges \| Interest rate contracts \| Customer accommodation
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	49,386	39,429
Derivative Assets, Gross Amount	190	316
Derivative Liabilities, Gross Amount	256	221
Derivatives not designated as accounting hedges \| Interest rate contracts \| Other interest rate exposures
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	6,427	3,857
Derivative Assets, Gross Amount	29	40
Derivative Liabilities, Gross Amount	36	8
Derivatives not designated as accounting hedges \| Foreign exchange contracts \| Customer accommodation
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	1,418	980
Derivative Assets, Gross Amount	12	14
Derivative Liabilities, Gross Amount	11	10
Derivatives not designated as accounting hedges \| Commodity contracts \| Customer accommodation
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	10,673	8,111
Derivative Assets, Gross Amount	797	518
Derivative Liabilities, Gross Amount	786	496
Derivatives not designated as accounting hedges \| Other contracts
Derivatives, Fair Value [Line Items]
Notional or Contractual Amount	1,636	1,209
Derivative Assets, Gross Amount	2	0
Derivative Liabilities, Gross Amount	$ 12	$ 5

Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities - Hedged Items in Fair Value Hedging Relationship (Details) $ in Millions	Dec. 31, 2018 USD ($)
Hedged Items In Fair Value Hedging Relationship [Line Items]
Amortized cost of closed prepayment assets	$ 8,300
Amortized Cost Of Closed Prepayable Assets Designated In Fair Value Hedges	4,000
Hedged LOLA assets Cumulative Basis Adjustment	26
Available-for-sale Securities
Hedged Items In Fair Value Hedging Relationship [Line Items]
Carrying Amount of Assets	14,067
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	(6)
Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	(2)
Interest-bearing deposits
Hedged Items In Fair Value Hedging Relationship [Line Items]
Carrying Amount Of Liabilities	(13,101)
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	247
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	0
Securitized debt obligations
Hedged Items In Fair Value Hedging Relationship [Line Items]
Carrying Amount Of Liabilities	(5,887)
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	168
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	143
Senior and subordinated notes
Hedged Items In Fair Value Hedging Relationship [Line Items]
Carrying Amount Of Liabilities	(23,572)
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	315
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	$ 392

Derivative Instruments and Hedging Activities - Offsetting Assets (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Derivative assets
Derivative Assets, Gross Amount	$ 1,539	$ 1,040
Derivative Asset, Offsetting Financial Instruments	(205)	(202)
Derivative Assets, Offsetting Cash Collateral	(874)	(73)
Derivative Assets	460	765
Derivative Asset, Securities Not Netted	0	0
Net Exposure	460	765
Derivative, Collateral, Obligation to Return Cash	925	91
Derivative, Collateral, Obligation to Return Securities	1	1
Derivative, Collateral, Right to Reclaim Cash	633	$ 966
Decrease/(Increase) In Derivative Assets Due To LCH Rulebook Change	431
Decrease In Derivative Liabilities Due To LCH Rulebook Change	$ 397

Derivative Instruments and Hedging Activities - Offsetting Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Derivative liabilities
Derivative Liabilities, Gross Amount	$ 1,201	$ 1,268
Derivative Liability, Offsetting Financial Instruments	(205)	(202)
Derivative Liability, Offsetting Cash Collateral	(82)	(460)
Derivative Liability	914	606
Derivative Liability, Securities Collateral Not Netted	0	0
Net Exposure	914	606
Repurchase agreements
Gross Amounts	352	576
Securities Sold under Agreements to Repurchase, Asset	0	0
Repurchase Agreement, Collateral, Right To Reclaim Cash, Offset	0	0
Net Amounts as Recognized	352	576
Offsetting Amounts Not Netted, Collateral Pledged	(352)	(576)
Net Exposure	0	0
Derivative, Collateral, Obligation to Return Cash	925	91
Derivative, Collateral, Obligation to Return Securities	1	1
Derivative, Collateral, Right to Reclaim Cash	633	$ 966
Decrease/(Increase) In Derivative Assets Due To LCH Rulebook Change	431
Decrease In Derivative Liabilities Due To LCH Rulebook Change	397
Securities Sold under Agreements to Repurchase, Fair Value of Collateral	$ 359

Derivative Instruments and Hedging Activities - Net Gains (Losses) Recognized in Earnings Related to Derivatives in Fair Value Hedging and Cash Flow Hedging (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Interest and Dividend Income, Securities, Operating	$ 2,211	$ 1,711	$ 1,599
Interest and Fee Income, Loans and Leases	24,728	23,388	21,203
Other Interest and Dividend Income	237	123	89
Interest Expense, Deposits	(2,598)	(1,602)	(1,213)
Interest Expense, Secured Debt	(496)	(327)	(216)
Interest Expense, Unsecured Debt	(1,125)	(731)	(476)
Other	1,002	$ 542	$ 541
Amortization of basis adjustment	75
Foreign Currency Transaction Loss, before Tax	193
Non Interest Income Other
Derivative Instruments, Gain (Loss) [Line Items]
Realized gains on foreign exchange contracts reclassified from AOCI	191
Fair value hedges \| Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	(22)
Fair value hedges \| Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	0
Fair value hedges \| Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	0
Fair value hedges \| Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	(84)
Fair value hedges \| Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	(76)
Fair value hedges \| Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	(79)
Fair value hedges \| Non Interest Income Other
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Fair Value Hedges Recognized in Earnings	0
Fair value hedges \| Interest rate contracts \| Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Gain or loss on fair value hedges recognized in net interest income	(23)
Gains (losses) recognized in earnings on derivatives	34
Gains (losses) recognized in earnings on hedged items	(33)
Fair value hedges \| Interest rate contracts \| Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Gain or loss on fair value hedges recognized in net interest income	0
Gains (losses) recognized in earnings on derivatives	0
Gains (losses) recognized in earnings on hedged items	0
Fair value hedges \| Interest rate contracts \| Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Gain or loss on fair value hedges recognized in net interest income	0
Gains (losses) recognized in earnings on derivatives	0
Gains (losses) recognized in earnings on hedged items	0
Fair value hedges \| Interest rate contracts \| Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Gain or loss on fair value hedges recognized in net interest income	(76)
Gains (losses) recognized in earnings on derivatives	(60)
Gains (losses) recognized in earnings on hedged items	52
Fair value hedges \| Interest rate contracts \| Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Gain or loss on fair value hedges recognized in net interest income	(53)
Gains (losses) recognized in earnings on derivatives	(61)
Gains (losses) recognized in earnings on hedged items	38
Fair value hedges \| Interest rate contracts \| Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Gain or loss on fair value hedges recognized in net interest income	2
Gains (losses) recognized in earnings on derivatives	(212)
Gains (losses) recognized in earnings on hedged items	131
Fair value hedges \| Interest rate contracts \| Non Interest Income Other
Derivative Instruments, Gain (Loss) [Line Items]
Gain or loss on fair value hedges recognized in net interest income	0
Gains (losses) recognized in earnings on derivatives	0
Gains (losses) recognized in earnings on hedged items	0
Cash flow hedges \| Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) On Cash Flow Hedges Recognized In Earnings	(9)
Cash flow hedges \| Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) On Cash Flow Hedges Recognized In Earnings	(82)
Cash flow hedges \| Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) On Cash Flow Hedges Recognized In Earnings	47
Cash flow hedges \| Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) On Cash Flow Hedges Recognized In Earnings	0
Cash flow hedges \| Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) On Cash Flow Hedges Recognized In Earnings	0
Cash flow hedges \| Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) On Cash Flow Hedges Recognized In Earnings	0
Cash flow hedges \| Non Interest Income Other
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) On Cash Flow Hedges Recognized In Earnings	(2)
Cash flow hedges \| Interest rate contracts \| Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(9)
Cash flow hedges \| Interest rate contracts \| Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	(82)
Cash flow hedges \| Interest rate contracts \| Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Interest rate contracts \| Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Interest rate contracts \| Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Interest rate contracts \| Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Interest rate contracts \| Non Interest Income Other
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Foreign exchange contracts \| Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Foreign exchange contracts \| Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Foreign exchange contracts \| Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	47
Cash flow hedges \| Foreign exchange contracts \| Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Foreign exchange contracts \| Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Foreign exchange contracts \| Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	0
Cash flow hedges \| Foreign exchange contracts \| Non Interest Income Other
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	$ (2)

Derivative Instruments and Hedging Activities - Net Gains (Losses) Related to Derivatives Designated as Cash Flow Hedges and Fair Value Hedges (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	$ 60	$ 99	$ 95
Interest rate contracts \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	48	38	37
Interest rate contracts \| Customer accommodation \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	25	20	24
Interest rate contracts \| Other interest rate exposures \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	33	61	67
Foreign exchange contracts \| Customer accommodation \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	$ 7	5	3
Derivatives designated as accounting hedges
Derivative Instruments, Gain (Loss) [Line Items]
Net derivative gains (losses) recognized in net income		110	191
Derivatives designated as accounting hedges \| Fair value hedges \| Interest rate contracts \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments		(212)	(613)
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge		216	603
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net		4	(10)
Derivatives designated as accounting hedges \| Cash flow hedges \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		108	195
Derivatives designated as accounting hedges \| Cash flow hedges \| Interest rate contracts \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges		2	(4)
Derivatives designated as accounting hedges \| Cash flow hedges \| Interest rate contracts \| Customer accommodation \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		91	192
Derivatives designated as accounting hedges \| Cash flow hedges \| Foreign exchange contracts \| Other interest rate exposures \| Other Non-Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges		$ 17	$ 3

Derivative Instruments and Hedging Activities - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Loss (net after-tax) recorded in AOCI related to derivatives designated as cash flow hedges expected to be reclassified to earnings over the next 12 months	$ 167
Maximum length of time over which forecasted transactions were hedged, years	5 years

Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities - Freestanding Derivative (Details) - Other Non-Interest Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	$ 60	$ 99	$ 95
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	48	38	37
Interest rate contracts \| Customer accommodation
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	25	20	24
Interest rate contracts \| Other interest rate exposures
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	33	61	67
Commodity contracts \| Customer accommodation
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	16	13	10
Foreign exchange contracts \| Customer accommodation
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	7	5	3
Other contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	$ (21)	$ 0	$ (9)

Stockholders' Equity - Schedule of Preferred Stock (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($)
Class of Stock [Line Items]
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 4,360	$ 4,360
Depository Share, Percent Interest in Preferred Stock	0.025
Series B Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	6.00%
Redemption Price per Depositary Share (in dollars per share) \| $ / shares	$ 1,000
Number of Depositary Shares (in shares) \| shares	875,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 853	853
Series C Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	6.25%
Redemption Price per Depositary Share (in dollars per share) \| $ / shares	$ 1,000
Number of Depositary Shares (in shares) \| shares	500,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 484	484
Series D Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	6.70%
Redemption Price per Depositary Share (in dollars per share) \| $ / shares	$ 1,000
Number of Depositary Shares (in shares) \| shares	500,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 485	485
Series E Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	5.55%
Redemption Price per Depositary Share (in dollars per share) \| $ / shares	$ 1,000
Number of Depositary Shares (in shares) \| shares	1,000,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 988	988
Preferred Stock, Dividend Payment Rate, Variable	Libor + 380 bps
Preferred Stock Dividend Rate, Variable	3.80%
Series F Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	6.20%
Redemption Price per Depositary Share (in dollars per share) \| $ / shares	$ 1,000
Number of Depositary Shares (in shares) \| shares	500,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 484	484
Series G Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	5.20%
Redemption Price per Depositary Share (in dollars per share) \| $ / shares	$ 1,000
Number of Depositary Shares (in shares) \| shares	600,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 583	583
Series H Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	6.00%
Redemption Price per Depositary Share (in dollars per share) \| $ / shares	$ 1,000
Number of Depositary Shares (in shares) \| shares	500,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 483	$ 483

Stockholders' Equity - Change in AOCI Gain (Loss) by Component (Net of Tax) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 0
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	(926)	$ (949)	$ (616)
Other comprehensive income (loss) before reclassifications	(302)	81	(247)
Net realized (gains) losses reclassified from AOCI into earnings	84	(58)	(86)
Other comprehensive income (loss), net of tax	(136)	23	(333)
AOCI ending balance	(1,263)	(926)	(949)
Securities held to maturity	36,771	28,984
Accumulated Net Unrealized Investment Gain (Loss) \| Available-for-sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	3
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	17	(4)	162
Other comprehensive income (loss) before reclassifications	(293)	62	(172)
Net realized (gains) losses reclassified from AOCI into earnings	159	(41)	6
Other comprehensive income (loss), net of tax	(459)	21	(166)
AOCI ending balance	(439)	17	(4)
Accumulated Net Unrealized Investment Gain (Loss) \| Securities Held to Maturity
Accumulated Other Comprehensive Income (Loss) [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	(113)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	(524)	(621)	(725)
Other comprehensive income (loss) before reclassifications	0	0	0
Net realized (gains) losses reclassified from AOCI into earnings	40	97	104
Other comprehensive income (loss), net of tax	447	97	104
AOCI ending balance	(190)	(524)	(621)
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Transfers from Held-to-maturity to Available-for-Sale Securities, before Tax	0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	(63)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	(281)	(78)	120
Other comprehensive income (loss) before reclassifications	38	(95)	(3)
Net realized (gains) losses reclassified from AOCI into earnings	(112)	(108)	(195)
Other comprehensive income (loss), net of tax	(74)	(203)	(198)
AOCI ending balance	(418)	(281)	(78)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Transfers from Held-to-maturity to Available-for-Sale Securities, before Tax	0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	0
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	(138)	(222)	(143)
Other comprehensive income (loss) before reclassifications	(39)	84	(79)
Net realized (gains) losses reclassified from AOCI into earnings	0	0	0
Other comprehensive income (loss), net of tax	(39)	84	(79)
AOCI ending balance	(177)	(138)	(222)
Other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Transfers from Held-to-maturity to Available-for-Sale Securities, before Tax	0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	(28)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	0	(24)	(30)
Other comprehensive income (loss) before reclassifications	(8)	30	7
Net realized (gains) losses reclassified from AOCI into earnings	(3)	(6)	(1)
Other comprehensive income (loss), net of tax	(11)	24	6
AOCI ending balance	(39)	0	(24)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	(201)
Accounting Standards Update 2017-12
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Securities held to maturity	9,000			$ 9,000
Accumulated Other Comprehensive Income (loss), before tax				$ 107
Accounting Standards Update 2017-12 \| Accumulated Net Unrealized Investment Gain (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI ending balance	82
Accumulated Other Comprehensive Income (loss), before tax	107
Accounting Standards Update 2017-12 \| Accumulated Net Unrealized Investment Gain (Loss) \| Available-for-sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI ending balance	(325)
Accounting Standards Update 2017-12 \| Accumulated Net Unrealized Investment Gain (Loss) \| Securities Held to Maturity
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI ending balance	407
Net investment hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Gains (losses) recorded in AOCI	$ 150	$ 143	$ 280

Stockholders' Equity - Reclassifications from AOCI (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	$ 22,875	$ 22,460	$ 20,873
Non-interest income	1,002	542	541
Income from continuing operations before income taxes	7,318	5,492	5,484
Income tax provision (benefit)	1,293	3,375	1,714
Net income	6,015	1,982	3,751
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(84)	58	86
Accumulated Net Unrealized Investment Gain (Loss) \| Reclassification out of Accumulated Other Comprehensive Income [Member] \| Available-for-sale Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-interest income	(209)	65	(10)
Income tax provision (benefit)	(50)	24	(4)
Net income	(159)	41	(6)
Accumulated Net Unrealized Investment Gain (Loss) \| Reclassification out of Accumulated Other Comprehensive Income [Member] \| Securities Held to Maturity
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	(53)	(150)	(164)
Income tax provision (benefit)	(13)	(53)	(60)
Net income	(40)	(97)	(104)
Cash Flow Hedges \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations before income taxes	147	173	310
Income tax provision (benefit)	35	65	115
Net income	112	108	195
Cash Flow Hedges \| Reclassification out of Accumulated Other Comprehensive Income [Member] \| Interest rate contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	(91)	145	306
Cash Flow Hedges \| Reclassification out of Accumulated Other Comprehensive Income [Member] \| Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	47	27	6
Non-interest income	191	1	(2)
Other \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income from continuing operations before income taxes	4	9	2
Income tax provision (benefit)	1	3	1
Net income	$ 3	$ 6	$ 1

Stockholders' Equity - Components of Other Comprehensive Income Loss and Related Tax Impact (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Before Tax
Net unrealized gains (losses) on securities available for sale	$ (605)	$ 23	$ (254)
Net changes in securities held to maturity	588	150	164
Net unrealized gains (losses) on cash flow hedges	(98)	(325)	(315)
Foreign currency translation adjustments	9	3	86
Other	(15)	38	10
Other comprehensive income before taxes	(121)	(111)	(309)
Provision (Benefit)
Net unrealized gains (losses) on securities available for sale	(146)	2	(88)
Net changes in securities held to maturity	141	53	60
Net unrealized losses on cash flow hedges	(24)	(122)	(117)
Foreign currency translation adjustments	48	(81)	165
Other	(4)	14	4
Other comprehensive income (loss), provision (benefit)	15	(134)	24
After Tax
Net unrealized gains (losses) on securities available for sale	(459)	21	(166)
Net changes in securities held to maturity	447	97	104
Net unrealized losses on cash flow hedges	(74)	(203)	(198)
Foreign currency translation adjustments	(39)	84	(79)
Other	(11)	24	6
Other comprehensive income (loss), net of tax	$ (136)	$ 23	$ (333)

Regulatory and Capital Adequacy - Schedule of Comparison of Capital Ratios (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Common equity Tier 1 capital:
Common equity Tier 1 capital	$ 33,071	$ 30,036
Common equity Tier 1 capital, capital ratio	11.20%	10.30%
Common equity Tier 1 capital, minimum capital adequacy	4.50%	4.50%
Tier 1 risk-based capital:
Tier 1 capital	$ 37,431	$ 34,396
Tier 1 capital, capital ratio	12.70%	11.80%
Tier 1 capital, minimum capital adequacy	6.00%	6.00%
Tier 1 capital, well-capitalized	6.00%	6.00%
Total risk-based capital:
Total capital	$ 44,645	$ 41,962
Total capital, capital ratio	15.10%	14.40%
Total capital, minimum capital adequacy	8.00%	8.00%
Total capital, well-capitalized	10.00%	10.00%
Tier 1 leverage capital:
Tier 1 leverage capital	$ 37,431	$ 34,396
Tier 1 leverage, capital ratio	10.70%	9.90%
Tier 1 leverage, minimum capital adequacy	4.00%	4.00%
Supplementary leverage:
Tier one capital under BaselIII standardized approach	$ 37,431	$ 34,396
Basel III Supplementary Leverage Ratio	9.00%	8.40%
Minimum Capital Adequacy for Supplementary Leverage Ratio	3.00%
Basel III Transition Provisions, Inclusion of AOCI and Intangible Asset Adjustments	100.00%	80.00%
Capital One Bank (USA), N.A.
Common equity Tier 1 capital:
Common equity Tier 1 capital	$ 16,378	$ 14,791
Common equity Tier 1 capital, capital ratio	15.30%	14.30%
Common equity Tier 1 capital, minimum capital adequacy	4.50%	4.50%
Common equity Tie 1 capital, well capitalized	6.50%	6.50%
Tier 1 risk-based capital:
Tier 1 capital	$ 16,378	$ 14,791
Tier 1 capital, capital ratio	15.30%	14.30%
Tier 1 capital, minimum capital adequacy	6.00%	6.00%
Tier 1 capital, well-capitalized	8.00%	8.00%
Total risk-based capital:
Total capital	$ 18,788	$ 17,521
Total capital, capital ratio	17.60%	16.90%
Total capital, minimum capital adequacy	8.00%	8.00%
Total capital, well-capitalized	10.00%	10.00%
Tier 1 leverage capital:
Tier 1 leverage capital	$ 16,378	$ 14,791
Tier 1 leverage, capital ratio	14.00%	12.70%
Tier 1 leverage, minimum capital adequacy	4.00%	4.00%
Tier 1 leverage, well-capitalized	5.00%	5.00%
Supplementary leverage:
Tier one capital under BaselIII standardized approach	$ 16,378	$ 14,791
Basel III Supplementary Leverage Ratio	11.50%	10.40%
Minimum Capital Adequacy for Supplementary Leverage Ratio	3.00%
Capital One, N.A.
Common equity Tier 1 capital:
Common equity Tier 1 capital	$ 25,637	$ 23,771
Common equity Tier 1 capital, capital ratio	13.00%	12.20%
Common equity Tier 1 capital, minimum capital adequacy	4.50%	4.50%
Common equity Tie 1 capital, well capitalized	6.50%	6.50%
Tier 1 risk-based capital:
Tier 1 capital	$ 25,637	$ 23,771
Tier 1 capital, capital ratio	13.00%	12.20%
Tier 1 capital, minimum capital adequacy	6.00%	6.00%
Tier 1 capital, well-capitalized	8.00%	8.00%
Total risk-based capital:
Total capital	$ 27,912	$ 26,214
Total capital, capital ratio	14.20%	13.40%
Total capital, minimum capital adequacy	8.00%	8.00%
Total capital, well-capitalized	10.00%	10.00%
Tier 1 leverage capital:
Tier 1 leverage capital	$ 25,637	$ 23,771
Tier 1 leverage, capital ratio	9.10%	8.60%
Tier 1 leverage, minimum capital adequacy	4.00%	4.00%
Tier 1 leverage, well-capitalized	5.00%	5.00%
Supplementary leverage:
Tier one capital under BaselIII standardized approach	$ 25,637	$ 23,771
Basel III Supplementary Leverage Ratio	8.00%	7.70%
Minimum Capital Adequacy for Supplementary Leverage Ratio	3.00%

Regulatory and Capital Adequacy - Additional Information (Details) - USD ($) $ in Billions	Dec. 31, 2018	Dec. 31, 2017
Cash Reserves, Federal Reserve Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash Reserve Deposit Required and Made	$ 1.9	$ 2.2
Capital One Bank (USA), N.A.
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments	3.2
Capital One, N.A.
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments	$ 2.2

Earnings Per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Earnings Per Share [Abstract]
Income from continuing operations, net of tax	$ 6,025	$ 2,117	$ 3,770
Loss from discontinued operations, net of tax	(10)	(135)	(19)
Net income	6,015	1,982	3,751
Dividends and undistributed earnings allocated to participating securities	(40)	(13)	(24)
Preferred stock dividends	(265)	(265)	(214)
Net income available to common stockholders	$ 5,710	$ 1,704	$ 3,513
Total weighted-average basic shares outstanding	479.9	484.2	504.9
Effect of dilutive securities:
Stock options	1.6	2.5	2.0
Other contingently issuable shares	1.1	1.2	1.3
Warrants	0.5	0.7	1.6
Total effect of dilutive securities	3.2	4.4	4.9
Total weighted-average diluted shares outstanding	483.1	488.6	509.8
Basic earnings per common share:
Net income from continuing operations (in dollars per share)	$ 11.92	$ 3.80	$ 7.00
Income (loss) from discontinued operations (in dollars per share)	(0.02)	(0.28)	(0.04)
Net income per basic common share (in dollars per share)	11.90	3.52	6.96
Diluted earnings per common share:
Net income from continuing operations (in dollars per share)	11.84	3.76	6.93
Income (loss) from discontinued operations (in dollars per share)	(0.02)	(0.27)	(0.04)
Net income per diluted common share (in dollars per share)	$ 11.82	$ 3.49	$ 6.89

Earnings Per Common Share - Additional Information (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Class of Warrant or Right, Outstanding		1,300	4,100
Stock Option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive options excluded from the computation of diluted earnings per share (in shares)	56	233	1,700
Minimum exercise price range	$ 86.34	$ 82.08	$ 63.73
Maximum exercise price range	$ 86.34	$ 86.34	$ 88.81

Stock-Based Compensation Plans - Summary of Stock Options Activity (Details) - Amended and Restated 2004 Stock Incentive Plan $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) $ / shares shares
Shares Subject to Options (in shares)
Outstanding as of beginning of the period \| shares	4,766
Granted \| shares	0
Exercised \| shares	(1,310)
Forfeited \| shares	0
Expired \| shares	0
Outstanding as of end of the period \| shares	3,456
Exercisable as of end of the period \| shares	3,043
Weighted- Average Exercise Price (in dollars per share)
Outstanding as of beginning of the period \| $ / shares	$ 48.50
Granted \| $ / shares	0.00
Exercised \| $ / shares	28.65
Forfeited \| $ / shares	0.00
Expired \| $ / shares	0.00
Outstanding as of end of the period \| $ / shares	56.03
Exercisable as of end of the period \| $ / shares	$ 53.36
Weighted-Average Remaining Contractual Term, Outstanding at end of period, years	3 years 10 months 17 days
Weighted-Average Remaining contractual Term Exercisable, at end of period years	3 years 4 months 13 days
Aggregate Intrinsic Value, Outstanding, at end of period \| $	$ 71
Aggregate Intrinsic Value, Exercisable, at end of period \| $	$ 68

Stock-Based Compensation Plans - Stock Options Cash Flow Impact (Details) - Amended and Restated 2004 Stock Incentive Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received for options exercised	$ 38	$ 122	$ 135
Tax benefit	$ 22	$ 34	$ 12

Stock-Based Compensation Plans - Weighted Average Assumptions used to Value Stock Options Granted (Details) - Amended and Restated 2004 Stock Incentive Plan	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Dividend yield (percent)	1.85%	2.07%
Volatility (percent)	27.00%	30.00%
Risk-free interest rate (percent)	2.30%	1.64%
Expected option lives (in years)	6 years 7 months 6 days	6 years 7 months 6 days

Stock-Based Compensation Plans - Summary of Activity for Restricted Stock Awards and Restricted Stock Units (Details) - Amended and Restated 2004 Stock Incentive Plan - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restricted Stock
Shares/Units
Unvested as of beginning of the period	16
Granted	0
Vested	(16)
Forfeited	0
Unvested as of end of period	0	16
Weighted Average Grant Date Fair Value per Share (in dollars per share)
Unvested as of beginning of the period	$ 56.39
Vested	56.39
Forfeited	0.00
Unvested as of end of the period	$ 0.00	$ 56.39
Restricted Stock Units (RSUs)
Shares/Units
Unvested as of beginning of the period	3,379
Granted	1,547
Vested	(1,426)
Forfeited	(155)
Unvested as of end of period	3,345	3,379
Weighted Average Grant Date Fair Value per Share (in dollars per share)
Unvested as of beginning of the period	$ 74.06
Granted	100.73	$ 86.20	$ 65.19
Vested	75.62
Forfeited	88.16
Unvested as of end of the period	$ 85.01	$ 74.06

Stock-Based Compensation Plans - Summary of Activity for Performance Share and Performance Units (Details) - Performance Share Units - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Weighted Average Grant Date Fair Value per Share (in dollars per share)
Granted	$ 100.65	$ 82.48	$ 62.89
Amended and Restated 2004 Stock Incentive Plan
Shares/Units
Unvested as of beginning of the period	1,918
Granted	878
Vested	(932)
Forfeited	(60)
Unvested as of end of period	1,804	1,918
Weighted Average Grant Date Fair Value per Share (in dollars per share)
Unvested as of beginning of the period	$ 75.38
Granted	100.65
Vested	74.80
Forfeited	90.35
Unvested as of end of the period	$ 87.48	$ 75.38

Stock-Based Compensation Plans - Additional Information (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) plan $ / shares shares	Dec. 31, 2017 USD ($) $ / shares	Dec. 31, 2016 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of active stock plans \| plan	1
Shares authorized under plans (in shares) \| shares	55
Shares available for grant under plans (in shares) \| shares	13
Compensation expense from award	$ 170	$ 244	$ 239
Recognized tax benefit from stock-based compensation arrangements	$ 34	$ 92	$ 89
Percentage of company's match on Associate Stock Purchase Plan contributions by employees (percent)	15.00%
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares	$ 100.65	$ 82.48	$ 62.89
Amended and Restated 2004 Stock Incentive Plan \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum contractual term (in years)	10 years
Award vesting period (in years)	3 years
Weighted-average fair value of options granted (in dollars per share) \| $ / shares	$ 0	$ 21.48	$ 16.36
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 94	$ 92	$ 31
Amended and Restated 2004 Stock Incentive Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Total fair value of awards vested	$ 2	3	21
Unrecognized compensation expense related to unvested awards, awards other than options	0
Amended and Restated 2004 Stock Incentive Plan \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of awards vested	139	$ 110	$ 42
Unrecognized compensation expense related to unvested awards, awards other than options	$ 139
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares	$ 100.73	$ 86.20	$ 65.19
Weighted-average period of recognition of unrecognized compensation costs (Years)	1 year 9 months 18 days
Amended and Restated 2004 Stock Incentive Plan \| Performance Shares Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years
Amended and Restated 2004 Stock Incentive Plan \| Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of awards vested	$ 92	$ 90	$ 54
Unrecognized compensation expense related to unvested awards, awards other than options	$ 31
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value \| $ / shares	$ 100.65
Weighted-average period of recognition of unrecognized compensation costs (Years)	11 months
Performance period	3 years
Amended and Restated 2004 Stock Incentive Plan \| Cash-Settled Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to unvested awards, awards other than options	$ 0
Number of common stock trading days required under vesting condition	15 days
Cash payments to settle awards	$ 39	42	36
Associate Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under plans (in shares) \| shares	33
Shares available for grant under plans (in shares) \| shares	16
Compensation expense from award	$ 23	$ 23	$ 18
Share Based Compensation Arrangement By Share Based Payment Award, Minimum Employee Subscription Rate	1.00%
Maximum percentage of monthly base pay eligible for the purchase plan	15.00%
Dividend Reinvestment Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under plans (in shares) \| shares	8
Shares available for grant under plans (in shares) \| shares	7
Minimum \| Amended and Restated 2004 Stock Incentive Plan \| Performance Shares Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential annual reduction in vesting based on performance (percent)	50.00%
Percentage of target award opportunities	0.00%
Maximum \| Amended and Restated 2004 Stock Incentive Plan \| Performance Shares Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential annual reduction in vesting based on performance (percent)	100.00%
Percentage of target award opportunities	150.00%

Employee Benefit Plans - Defined Contribution Plan (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) age	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan, cost \| $	$ 291	$ 282	$ 252
Associate Savings Plan
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan, age eligible to participate \| age	18

Employee Benefit Plans - Defined Benefit Plan and Other Postretirement Benefit Plans Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Defined Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax	$ (64)	$ (49)
Defined Benefit Plan, Expected Future Benefit Payment, Next 10 Years	103
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax	9	$ 10
Defined Benefit Plan, Expected Future Benefit Payment, Next 10 Years	$ 20
Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	39.00%
International equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	16.00%
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	45.00%
Minimum \| Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	34.00%
Minimum \| International equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	11.00%
Minimum \| Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	35.00%
Maximum \| Domestic equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	44.00%
Maximum \| International equity
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	21.00%
Maximum \| Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	55.00%

Employee Benefit Plans - Schedule of Changes in Benefit Obligation and Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Change in plan assets:
Fair value of plan assets as of January 1,	$ 252
Fair value of plan assets as of December 31,		$ 252
Defined Pension Benefits
Change in benefit obligation:
Accumulated benefit obligation as of January 1,	178	180
Service cost	1	2	$ 2
Interest cost	6	7	7
Benefits paid	(15)	(18)
Net actuarial loss (gain)	(13)	7
Accumulated benefit obligation as of December 31,	157	178	180
Change in plan assets:
Fair value of plan assets as of January 1,	246	226
Actual return on plan assets	(14)	37
Employer contributions	1	1
Benefits paid	(15)	(18)
Fair value of plan assets as of December 31,	218	246	226
Over (under) funded status as of December 31,	61	68
Other Postretirement Benefits
Change in benefit obligation:
Accumulated benefit obligation as of January 1,	35	39
Service cost	0	0	0
Interest cost	1	2	2
Benefits paid	(2)	(3)
Net actuarial loss (gain)	(5)	(3)
Accumulated benefit obligation as of December 31,	29	35	39
Change in plan assets:
Fair value of plan assets as of January 1,	6	6
Actual return on plan assets	0	1
Employer contributions	2	2
Benefits paid	(2)	(3)
Fair value of plan assets as of December 31,	6	6	$ 6
Over (under) funded status as of December 31,	$ (23)	$ (29)

Employee Benefit Plans - Schedule of Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Defined Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Other assets	$ 71	$ 80
Other liabilities	(10)	(12)
Net amount recognized as of December 31,	61	68
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Other assets	0	0
Other liabilities	(23)	(29)
Net amount recognized as of December 31,	$ (23)	$ (29)

Employee Benefit Plans - Schedule of Net Periodic Benefit Costs and Other Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Pension Benefits
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 1	$ 2	$ 2
Interest cost	6	7	7
Expected return on plan assets	(15)	(14)	(14)
Amortization of transition obligation, prior service credit, and net actuarial loss (gain)	1	1	1
Net periodic benefit gain	(7)	(4)	(4)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax	(17)	16	4
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	1	1	1
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax	(16)	17	5
Other Postretirement Benefits
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	0	0	0
Interest cost	1	2	2
Expected return on plan assets	0	0	0
Amortization of transition obligation, prior service credit, and net actuarial loss (gain)	(6)	(6)	(6)
Net periodic benefit gain	(5)	(4)	(4)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax	5	4	5
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	(6)	(6)	(6)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax	$ (1)	$ (2)	$ (1)

Employee Benefit Plans - Schedule of Weighted-Average Assumptions Used in Calculating Net Periodic Benefit Costs (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Pension Benefits
Assumptions for benefit obligations at measurement date:
Discount rate	4.20%	3.50%	4.00%
Assumptions for periodic benefit cost for the year ended:
Discount rate	3.50%	4.00%	4.20%
Expected long-term rate of return on plan assets	6.50%	6.50%	6.50%
Other Postretirement Benefits
Assumptions for benefit obligations at measurement date:
Discount rate	4.20%	3.50%	4.00%
Assumptions for periodic benefit cost for the year ended:
Discount rate	3.50%	4.00%	4.20%
Expected long-term rate of return on plan assets	6.50%	6.50%	6.50%
Assumptions for year-end valuations:
Health care cost trend rate assumed for next year, pre-age 65	6.20%	6.50%	6.70%
Health care cost trend rate assumed for next year, post-age 65	6.20%	6.50%	6.80%
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	4.50%	4.50%	4.50%

Employee Benefit Plans - Schedule of Fair Value of Plan Assets Measured on a Recurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Assets in fair value hierarchy		$ 252
Level 2 \| Corporate bonds and government securities
Defined Benefit Plan Disclosure [Line Items]
Plan asset allocation percentage		40.00%
Net Asset Value Per Share \| Common collective trusts
Defined Benefit Plan Disclosure [Line Items]
Assets in fair value hierarchy	$ 224
Plan asset allocation percentage		60.00%

Income Taxes - Schedule of Significant Components of Provision for Income Taxes Attributable to Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current income tax provision:
Federal taxes	$ 210	$ 1,585	$ 2,087
State taxes	234	223	209
International taxes	135	133	104
Total current provision	579	1,941	2,400
Deferred income tax (benefit) provision:
Federal taxes	620	1,509	(621)
State taxes	115	(69)	(63)
International taxes	(21)	(6)	(2)
Total deferred (benefit) provision	714	1,434	(686)
Income tax provision (benefit)	$ 1,293	$ 3,375	$ 1,714

Income Taxes - Schedule of Effective Income Tax Rate (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Income tax at U.S. federal statutory tax rate	21.00%	35.00%	35.00%
Low-income housing, new markets tax credits, and other credits	(4.00%)	(5.80%)	(4.90%)
IRS method changes	(3.90%)	0.00%	0.00%
Tax-exempt interest and other nontaxable income	(0.70%)	(1.50%)	(1.40%)
Impacts on Tax Act	(0.30%)	32.20%
State taxes, net of federal benefit	3.20%	2.20%	1.90%
Non-deductible expenses	2.20%	0.70%	0.90%
Other, net	0.20%	(1.30%)	(0.20%)
Effective tax rate	17.70%	61.50%	31.30%

Income Taxes - Schedule of Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Allowance for loan and lease losses	$ 1,700	$ 1,768
Rewards programs	500	936
Security and loan valuations	288	424
Net operating loss and tax credit carryforwards	271	244
Goodwill and intangibles	187	201
Compensation and employee benefits	167	208
Partnership investments	162	130
Net unrealized losses on derivatives	135	104
Unearned income	114	130
Other assets	152	156
Subtotal	3,676	4,301
Valuation allowance	(245)	(226)
Total deferred tax assets	3,431	4,075
Deferred tax liabilities:
Original issue discount	720	703
Fixed assets and leases	204	168
Loan fees and expenses	75	68
Mortgage Servicing Rights	48	57
Other liabilities	239	215
Total deferred tax liabilities	1,286	1,211
Net deferred tax assets	$ 2,145	$ 2,864

Income Taxes - Schedule of Reconciliation of Change in Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Gross Unrecognized Tax Benefits
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 86	$ 85	$ 130
Additions for tax positions related to current year	28
Additions for tax positions related to prior years	402	5	0
Reductions for tax positions related to prior years due to IRS and other settlements	(76)	(4)	(45)
Ending balance	440	86	85
Portion of balance at December 31, that, if recognized, would impact the effective income tax rate	181
Accrued Interest and Penalties
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	29	24	33
Additions for tax positions related to current year	0
Additions for tax positions related to prior years	25	7	6
Reductions for tax positions related to prior years due to IRS and other settlements	(19)	(2)	(15)
Ending balance	35	29	24
Portion of balance at December 31, that, if recognized, would impact the effective income tax rate	28
Gross Tax, Interest and Penalties
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	115	109	163
Additions for tax positions related to current year	28
Additions for tax positions related to prior years	427	12	6
Reductions for tax positions related to prior years due to IRS and other settlements	(95)	(6)	(60)
Ending balance	475	$ 115	$ 109
Portion of balance at December 31, that, if recognized, would impact the effective income tax rate	$ 209

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Additional Information [Line Items]
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense (Benefit)		$ 1,800
IRS Method Changes, Provision Income Tax Benefit	$ 284
Pre-tax earnings from foreign operations			$ 382	$ 410	$ 287
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent			15	(134)	24
Accrued interest and penalties expense (benefit) related to income taxes included in income tax expense			6	5	$ (5)
Provisional liability accrued for repatriation of undistributed foreign earnings	111		111
Undistributed earnings of foreign subsidiaries	1,500		1,500
Amount of unrecognized deferred tax liability, bad debt reserve for tax purposes of qualified lender	69		69
Bad debt reserve for tax purposes of qualified lender	287		287
Internal Revenue Service (IRS)
Additional Information [Line Items]
Operating Loss Carryforwards	1	15	1	15
State and Local Jurisdiction
Additional Information [Line Items]
Operating Loss Carryforwards	253	$ 241	253	$ 241
Foreign Tax Authority [Member]
Additional Information [Line Items]
Operating Loss Carryforwards	$ 19		$ 19

Fair Value Measurement - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets:
Securities available for sale	$ 46,150	$ 37,655
Derivative Assets, Gross Amount	1,539	1,040
Derivative Asset, Netting Adjustments	(1,079)	(275)
Other assets:
Consumer MSRs		92
Liabilities:
Derivative Liabilities, Gross Amount	1,201	1,268
Derivative Liability, Netting Adjustments	(287)	(662)
Net valuation allowance	2	2
Recurring
Assets:
Securities available for sale	46,150	37,655
Derivative Assets, Gross Amount	460	765
Other assets	423	545
Total assets	47,033	38,965
Liabilities:
Derivative Liabilities, Gross Amount	914	606
Recurring \| Level 1
Assets:
Securities available for sale	6,363	5,491
Derivative Assets, Gross Amount	0	1
Other assets	265	281
Total assets	6,628	5,773
Other assets:
Deferred compensation plan assets	264	281
Equity securities	1
Liabilities:
Derivative Liabilities, Gross Amount	0	1
Recurring \| Level 2
Assets:
Securities available for sale	39,344	31,531
Derivative Assets, Gross Amount	1,501	1,002
Other assets	0	0
Total assets	40,845	32,533
Liabilities:
Derivative Liabilities, Gross Amount	1,153	1,243
Recurring \| Level 3
Assets:
Securities available for sale	443	633
Derivative Assets, Gross Amount	38	37	$ 47
Other assets	158	264
Total assets	639	934
Other assets:
Retained interests in securitizations	158	172
Consumer MSRs		92
Liabilities:
Derivative Liabilities, Gross Amount	48	24	$ 29
U.S. Treasury securities
Assets:
Securities available for sale	6,144	5,171
U.S. Treasury securities \| Recurring
Assets:
Securities available for sale	6,144	5,171
U.S. Treasury securities \| Recurring \| Level 1
Assets:
Securities available for sale	6,144	5,171
U.S. Treasury securities \| Recurring \| Level 2
Assets:
Securities available for sale	0	0
U.S. Treasury securities \| Recurring \| Level 3
Assets:
Securities available for sale	0	0
RMBS
Assets:
Securities available for sale	33,645	27,792
RMBS \| Recurring
Assets:
Securities available for sale	33,645	27,792
RMBS \| Recurring \| Level 1
Assets:
Securities available for sale	0	0
RMBS \| Recurring \| Level 2
Assets:
Securities available for sale	33,212	27,178
RMBS \| Recurring \| Level 3
Assets:
Securities available for sale	433	614
CMBS \| Recurring
Assets:
Securities available for sale	4,739	3,175
CMBS \| Recurring \| Level 1
Assets:
Securities available for sale	0	0
CMBS \| Recurring \| Level 2
Assets:
Securities available for sale	4,729	3,161
CMBS \| Recurring \| Level 3
Assets:
Securities available for sale	10	14
Other securities
Assets:
Securities available for sale	1,622	1,517
Other securities \| Recurring
Assets:
Securities available for sale	1,622	1,517
Other securities \| Recurring \| Level 1
Assets:
Securities available for sale	219	320
Other securities \| Recurring \| Level 2
Assets:
Securities available for sale	1,403	1,192
Other securities \| Recurring \| Level 3
Assets:
Securities available for sale	$ 0	$ 5

Fair Value Measurement Fair Value Measurement - Schedule of Level 3 Inputs Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative, Fair Value, Net [Abstract]
Derivative Assets, Gross Amount	$ 1,539	$ 1,040
Derivative Liabilities, Gross Amount	1,201	1,268
Recurring
Derivative, Fair Value, Net [Abstract]
Derivative Assets, Gross Amount	460	765
Derivative Liabilities, Gross Amount	914	606
Recurring \| Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	633	578	$ 615
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	32	90	22
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	(8)	(24)	9
Purchases	0	110	420
Sales	0	(166)	0
Issuances	0	0	0
Settlements	(83)	(100)	(122)
Transfers Into Level 3	203	572	444
Transfers Out of Level 3	(334)	(427)	(810)
Ending balance	443	633	578
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	28	19	32
Net Unrealized Gains (Losses) Included in OCI Related to Assets and Liabilities Still Held	17
Derivative, Fair Value, Net [Abstract]
Beginning balance	13	18	30
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	(20)	0	(5)
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	0	0	0
Purchases	0	0	0
Sales	0	0	0
Issuances	13	46	36
Settlements	(17)	(44)	(33)
Transfers Into Level 3	0	0	0
Transfers Out of Level 3	1	(7)	(10)
Ending balance	(10)	13	18
Derivative Assets, Gross Amount	38	37	47
Derivative Liabilities, Gross Amount	48	24	29
RMBS \| Recurring \| Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	614	518	504
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	32	90	31
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	(8)	(24)	9
Purchases	0	0	110
Sales	0	(116)	0
Issuances	0	0	0
Settlements	(74)	(92)	(98)
Transfers Into Level 3	203	572	380
Transfers Out of Level 3	(334)	(334)	(418)
Ending balance	433	614	518
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	28	19	32
CMBS \| Recurring \| Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	14	51	97
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	0	0	0
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	0	0	0
Purchases	0	110	266
Sales	0	(50)	0
Issuances	0	0	0
Settlements	(4)	(4)	(14)
Transfers Into Level 3	0	0	64
Transfers Out of Level 3	0	(93)	(362)
Ending balance	10	14	51
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	0	0	0
Other securities \| Recurring \| Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	5	9	14
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	0	0	(9)
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	0	0	0
Purchases	0	0	44
Sales	0	0	0
Issuances	0	0	0
Settlements	(5)	(4)	(10)
Transfers Into Level 3	0	0	0
Transfers Out of Level 3	0	0	(30)
Ending balance	0	5	9
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	0	0	0
Consumer MSRs \| Recurring \| Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	92	80	68
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	3	(5)	(5)
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	0	0	0
Purchases	0	0	0
Sales	(97)	(3)	0
Issuances	2	27	23
Settlements	0	(7)	(6)
Transfers Into Level 3	0	0	0
Transfers Out of Level 3	0	0	0
Ending balance	0	92	80
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	0	(5)	(5)
Retained interest in securitizations \| Recurring \| Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	172	201	211
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	(14)	(29)	(10)
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	0	0	0
Purchases	0	0	0
Sales	0	0	0
Issuances	0	0	0
Settlements	0	0	0
Transfers Into Level 3	0	0	0
Transfers Out of Level 3	0	0	0
Ending balance	158	172	201
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	(14)	(29)	(10)
Net Derivative Assets (Liabilities) \| Recurring \| Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	$ (20)	$ 0	$ (5)

Fair Value Measurement - Schedule of Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	$ 0	$ 0
Loans held for sale	1,218	949
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	241,556	251,468
Loans held for sale	0	3
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	129	182
Loans held for sale	38	178
Other assets	100	35
Total assets	267	395
Equity investments accounted for under measurement alternative	24
Foreclosed property and repossessed assets, fair value disclosure	57	17
Long lived assets held for sale	19	18
Nonrecurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	0	0
Loans held for sale	38	177
Other assets	0	0
Total assets	38	177
Nonrecurring \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	129	182
Loans held for sale	0	1
Other assets	100	35
Total assets	$ 229	$ 218

Fair Value Measurement - Additional Information (Detail) - Non-Recoverable Rate - Level 3 - Appraisal Value	Dec. 31, 2018	Dec. 31, 2017
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	0	0
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	0.84	0.77
Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	0.33	0.21

Fair Value Measurement - Schedule of Earnings Related to Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets:
Loans held for investment	$ (85)	$ (100)	$ (230)
Loans held for sale	0	(3)	(2)
Other assets	(74)	(12)	(19)
Total	$ (159)	$ (115)	$ (251)

Fair Value Measurement - Schedule of Fair Value of Financial Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Financial assets:
Securities held to maturity	$ 36,619	$ 29,437
Level 1
Financial assets:
Cash and cash equivalents	4,768	4,458
Restricted cash for securitization investors	303	312
Securities held to maturity	0	200
Net loans held for investment	0	0
Loans held for sale	0	0
Interest receivable	0	0
Other investments	0	0
Financial liabilities:
Deposits with defined maturities	0
Deposits		26,404
Securitized debt obligations	0	0
Senior and subordinated notes	0	0
Federal funds purchased and securities loaned or sold under agreements to repurchase	0	0
Other borrowings	0	0
Interest payable	0	0
Level 2
Financial assets:
Cash and cash equivalents	8,418	9,582
Restricted cash for securitization investors	0	0
Securities held to maturity	36,513	29,217
Net loans held for investment	0	0
Loans held for sale	1,218	949
Interest receivable	1,614	1,536
Other investments	1,725	1,680
Financial liabilities:
Deposits with defined maturities	38,279
Deposits		217,328
Securitized debt obligations	18,359	20,122
Senior and subordinated notes	30,635	31,392
Federal funds purchased and securities loaned or sold under agreements to repurchase	352	576
Other borrowings	9,354	8,892
Interest payable	458	413
Level 3
Financial assets:
Cash and cash equivalents	0	0
Restricted cash for securitization investors	0	0
Securities held to maturity	106	20
Net loans held for investment	241,556	251,468
Loans held for sale	0	3
Interest receivable	0	0
Other investments	0	9
Financial liabilities:
Deposits with defined maturities	0
Deposits		0
Securitized debt obligations	0	0
Senior and subordinated notes	0	0
Federal funds purchased and securities loaned or sold under agreements to repurchase	0	0
Other borrowings	0	0
Interest payable	0	0
Carrying Value
Financial assets:
Cash and cash equivalents	13,186	14,040
Restricted cash for securitization investors	303	312
Securities held to maturity	36,771	28,984
Net loans held for investment	238,679	246,971
Loans held for sale	1,192	971
Interest receivable	1,614	1,536
Other investments	1,725	1,689
Financial liabilities:
Deposits with defined maturities	38,471
Deposits		243,702
Securitized debt obligations	18,307	20,010
Senior and subordinated notes	30,826	30,755
Federal funds purchased and securities loaned or sold under agreements to repurchase	352	576
Other borrowings	9,354	8,892
Interest payable	458	413
Estimated Fair Value
Financial assets:
Cash and cash equivalents	13,186	14,040
Restricted cash for securitization investors	303	312
Securities held to maturity	36,619	29,437
Net loans held for investment	241,556	251,468
Loans held for sale	1,218	952
Interest receivable	1,614	1,536
Other investments	1,725	1,689
Financial liabilities:
Deposits with defined maturities	38,279
Deposits		243,732
Securitized debt obligations	18,359	20,122
Senior and subordinated notes	30,635	31,392
Federal funds purchased and securities loaned or sold under agreements to repurchase	352	576
Other borrowings	9,354	8,892
Interest payable	$ 458	$ 413

Business Segments and Revenue from Contracts with Customers - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) Segment
Segment Reporting Information [Line Items]
Number of Operating Segments \| Segment	3
Commercial Banking \| Minimum
Segment Reporting Information [Line Items]
Customer Net Revenue Range	$ 20
Commercial Banking \| Maximum
Segment Reporting Information [Line Items]
Customer Net Revenue Range	$ 2,000

Business Segments and Revenue from Contracts with Customers - Schedule of Segment Results and Reconciliation (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net interest income	$ 22,875	$ 22,460	$ 20,873
Non-interest income	5,201	4,777	4,628
Total net revenue	28,076	27,237	25,501
Provision (benefit) for credit losses	5,856	7,551	6,459
Total non-interest expense	14,902	14,194	13,558
Income (loss) from continuing operations before income taxes	7,318	5,492	5,484
Income tax provision (benefit)	1,293	3,375	1,714
Income (loss) from continuing operations, net of tax	6,025	2,117	3,770
Loans held for investment	245,899	254,473	245,586
Total deposits	$ 249,764	$ 243,702	$ 236,768
Effective income tax rate	21.00%	35.00%	35.00%
Operating Segments \| Credit Card
Segment Reporting Information [Line Items]
Net interest income	$ 14,167	$ 13,648	$ 12,635
Non-interest income	3,520	3,325	3,380
Total net revenue	17,687	16,973	16,015
Provision (benefit) for credit losses	4,984	6,066	4,926
Total non-interest expense	8,542	7,916	7,703
Income (loss) from continuing operations before income taxes	4,161	2,991	3,386
Income tax provision (benefit)	970	1,071	1,226
Income (loss) from continuing operations, net of tax	3,191	1,920	2,160
Loans held for investment	116,361	114,762	105,552
Total deposits	0	0	0
Operating Segments \| Consumer Banking
Segment Reporting Information [Line Items]
Net interest income	6,549	6,380	5,829
Non-interest income	663	749	733
Total net revenue	7,212	7,129	6,562
Provision (benefit) for credit losses	838	1,180	1,055
Total non-interest expense	4,027	4,233	4,139
Income (loss) from continuing operations before income taxes	2,347	1,716	1,368
Income tax provision (benefit)	547	626	498
Income (loss) from continuing operations, net of tax	1,800	1,090	870
Loans held for investment	59,205	75,078	73,054
Total deposits	198,607	185,842	181,917
Operating Segments \| Commercial Banking
Segment Reporting Information [Line Items]
Net interest income	2,152	2,261	2,216
Non-interest income	744	708	578
Total net revenue	2,896	2,969	2,794
Provision (benefit) for credit losses	83	301	483
Total non-interest expense	1,654	1,603	1,407
Income (loss) from continuing operations before income taxes	1,159	1,065	904
Income tax provision (benefit)	270	389	329
Income (loss) from continuing operations, net of tax	889	676	575
Loans held for investment	70,333	64,575	66,916
Total deposits	29,480	33,938	33,866
Revenue Change Due To Impact Of Federal Tax Rate And Measurement Change	126
Other
Segment Reporting Information [Line Items]
Net interest income	7	171	193
Non-interest income	274	(5)	(63)
Total net revenue	281	166	130
Provision (benefit) for credit losses	(49)	4	(5)
Total non-interest expense	679	442	309
Income (loss) from continuing operations before income taxes	(349)	(280)	(174)
Income tax provision (benefit)	(494)	1,289	(339)
Income (loss) from continuing operations, net of tax	145	(1,569)	165
Loans held for investment	0	58	64
Total deposits	21,677	$ 23,922	$ 20,985
Home Loans Receivable \| Other
Segment Reporting Information [Line Items]
Provision (benefit) for credit losses	46
Gain (Loss) on Sale of Mortgage Loans	$ 499

Business Segments and Revenue from Contracts with Customers Business Segments and Revenue from Contracts with Customers - Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Total contract revenue	$ 3,431
Revenue from other sources	1,770
Total non-interest income	5,201	$ 4,777	$ 4,628
Operating Segments \| Credit Card
Disaggregation of Revenue [Line Items]
Total contract revenue	2,617
Revenue from other sources	903
Total non-interest income	3,520	3,325	3,380
Operating Segments \| Consumer Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	661
Revenue from other sources	2
Total non-interest income	663	749	733
Operating Segments \| Commercial Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	158
Revenue from other sources	586
Total non-interest income	744	708	578
Other
Disaggregation of Revenue [Line Items]
Total contract revenue	(5)
Revenue from other sources	279
Total non-interest income	274	$ (5)	$ (63)
Interchange Fees, Contracts
Disaggregation of Revenue [Line Items]
Total contract revenue	2,823
Customer reward expenses	4,400
Interchange Fees, Contracts \| Operating Segments \| Credit Card
Disaggregation of Revenue [Line Items]
Total contract revenue	2,609
Interchange Fees, Contracts \| Operating Segments \| Consumer Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	185
Interchange Fees, Contracts \| Operating Segments \| Commercial Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	33
Interchange Fees, Contracts \| Other
Disaggregation of Revenue [Line Items]
Total contract revenue	(4)
Service Charges And Other Customer Fees, Contracts
Disaggregation of Revenue [Line Items]
Total contract revenue	489
Service Charges And Other Customer Fees, Contracts \| Operating Segments \| Credit Card
Disaggregation of Revenue [Line Items]
Total contract revenue	0
Service Charges And Other Customer Fees, Contracts \| Operating Segments \| Consumer Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	367
Service Charges And Other Customer Fees, Contracts \| Operating Segments \| Commercial Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	123
Service Charges And Other Customer Fees, Contracts \| Other
Disaggregation of Revenue [Line Items]
Total contract revenue	(1)
Other Contract Revenue
Disaggregation of Revenue [Line Items]
Total contract revenue	119
Other Contract Revenue \| Operating Segments \| Credit Card
Disaggregation of Revenue [Line Items]
Total contract revenue	8
Other Contract Revenue \| Operating Segments \| Consumer Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	109
Other Contract Revenue \| Operating Segments \| Commercial Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	2
Other Contract Revenue \| Other
Disaggregation of Revenue [Line Items]
Total contract revenue	$ 0

Commitments, Contingencies, Guarantees, and Others Commitments, Contingencies, Guarantees, and Others - Schedule of letter of credit and other loan commitments (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Loss Contingencies [Line Items]
Letter of Credit Issued Contractual Amount and Unused Commitment to Extend Credit	$ 382,427	$ 385,367
Off-balance Sheet Lending Commitment Carrying Value	124	127
Credit Card Portfolio Segment
Loss Contingencies [Line Items]
Unused Commitments to Extend Credit	346,186	351,481
Other Portfolio Segments, Excluding Credit Card
Loss Contingencies [Line Items]
Unused Commitments to Extend Credit	34,449	31,840
Off-balance Sheet Lending Commitment Carrying Value	95	84
Advised Line of Credit	1,300	1,000
Letter of Credit [Member]
Loss Contingencies [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,792	2,046
Off-balance Sheet Lending Commitment Carrying Value	$ 29	$ 43

Commitments, Contingencies, Guarantees, and Others - Guarantees, Loss Sharing, U.K Cross Sell (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Insurance Claims [Member]
Loss Contingencies [Line Items]
Loss contingency accrual	$ 133	$ 249
Loss Contingency, Loss in Period	99
Loss Contingency, Range of Possible Loss, Portion Not Accrued	100
Loss Sharing Agreement
Loss Contingencies [Line Items]
Guarantee Obligation	$ 59	$ 60

Commitments, Contingencies, Guarantees, and Others - Litigation (Details) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 31, 2012 USD ($)	Jul. 31, 2012 USD ($) trust summon	Dec. 31, 2018 USD ($)
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss			$ 1,100
Anti-Money Laundering
Loss Contingencies [Line Items]
Litigation settlement paid			$ 100
Pending Litigation \| Interchange Litigation
Loss Contingencies [Line Items]
Litigation settlement, attributable to reporting entity and third party	$ 6,200
GreenPoint Subsidiary \| Pending Litigation \| FHFA Litigation
Loss Contingencies [Line Items]
Number of summons filed \| summon		3
Number of residential mortgage backed securities trusts \| trust		3
Mortgage loans sold to third party, face amount under litigation	$ 3,400	$ 3,400

Capital One Financial Corporation (Parent Company Only) - Statements of Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Income Statements, Captions [Line Items]
Interest from temporary investments	$ 27,176	$ 25,222	$ 22,891
Interest expense	4,301	2,762	2,018
Non-interest income	5,201	4,777	4,628
Non-interest expense	14,902	14,194	13,558
Income tax (benefit)	1,293	3,375	1,714
Net income	6,015	1,982	3,751
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	5,879	2,005	3,418
Parent Company
Condensed Income Statements, Captions [Line Items]
Interest from temporary investments	313	178	120
Interest expense	720	381	258
Dividends from Subsidiaries	2,750	300	3,936
Non-interest income	19	19	(13)
Non-interest expense	29	34	48
Income before income taxes and equity in undistributed earnings of subsidiaries	2,333	82	3,737
Income tax (benefit)	(128)	(103)	(79)
Income (loss) from subsidiary including discontinued operations, net of tax	3,554	1,797	(65)
Net income	6,015	1,982	3,751
Other Comprehensive Income (Loss), Net of Tax	(136)	23	(333)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 5,879	$ 2,005	$ 3,418

Capital One Financial Corporation (Parent Company Only) - Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets:
Cash and cash equivalents	$ 13,186	$ 14,040
Other assets	15,908	16,658
Total assets	372,538	365,693
Liabilities:
Senior and subordinated notes	30,826	30,755
Other borrowings	9,420	8,940
Accrued expenses and other liabilities	11,743	12,567
Total liabilities	320,870	316,963
Stockholders’ equity:
Total stockholders’ equity	51,668	48,730	$ 47,514	$ 47,284
Total liabilities and stockholders’ equity	372,538	365,693
Parent Company
Assets:
Cash and cash equivalents	10,286	8,196	$ 7,296	$ 7,245
Investment in subsidiaries	58,154	54,712
Loans to subsidiaries	2,603	548
Securities available for sale	795	907
Other assets	1,250	729
Total assets	73,088	65,092
Liabilities:
Senior and subordinated notes	19,518	14,392
Other borrowings	1,671	1,633
Accrued expenses and other liabilities	231	337
Total liabilities	21,420	16,362
Stockholders’ equity:
Total stockholders’ equity	51,668	48,730
Total liabilities and stockholders’ equity	$ 73,088	$ 65,092

Capital One Financial Corporation (Parent Company Only) - Statements of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating activities:
Net income	$ 6,015	$ 1,982	$ 3,751
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net cash from operating activities	12,978	14,182	11,856
Investing activities:
Net cash from investing activities	(15,618)	(15,541)	(25,630)
Common Stock
Net proceeds from issuances	175	164	131
Dividends paid	(773)	(780)	(812)
Preferred Stock
Net proceeds from issuances	0	0	1,066
Dividends paid	(265)	(265)	(214)
Purchases of treasury stock	(2,284)	(240)	(3,661)
Proceeds from share-based payment activities	38	124	142
Net cash from financing activities	1,777	3,218	17,227
Cash, cash equivalents and restricted cash for securitization investors, beginning of the period	14,040
Cash, cash equivalents and restricted cash for securitization investors, ending of the period	13,186	14,040
Parent Company
Operating activities:
Net income	6,015	1,982	3,751
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Equity in undistributed earnings of subsidiaries	(3,554)	(1,797)	65
Other operating activities	(35)	327	(10)
Net cash from operating activities	2,426	512	3,806
Investing activities:
Net payments to subsidiaries	(577)	(4,956)	(163)
Proceeds from paydowns and maturities of securities available for sale	140	130	71
Changes in loans to subsidiaries	(2,055)	44	(71)
Net cash from investing activities	(2,492)	(4,782)	(163)
Financing activities:
Changes in borrowings from subsidiaries	38	23	19
Proceeds from issuance of senior notes and sub notes	5,227	6,948	1,487
Proceeds from paydowns and maturities of senior and subordinated notes	0	(804)	(1,750)
Common Stock
Net proceeds from issuances	175	164	131
Dividends paid	(773)	(780)	(812)
Preferred Stock
Net proceeds from issuances	0	0	1,066
Dividends paid	(265)	(265)	(214)
Purchases of treasury stock	(2,284)	(240)	(3,661)
Proceeds from share-based payment activities	38	124	142
Net cash from financing activities	2,156	5,170	(3,592)
Changes in cash and cash equivalents	2,090	900	51
Cash, cash equivalents and restricted cash for securitization investors, beginning of the period	8,196	7,296	7,245
Cash, cash equivalents and restricted cash for securitization investors, ending of the period	$ 10,286	$ 8,196	$ 7,296

Loans - Loan Portfolio Composition and Aging Analysis (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	$ 236,310	$ 234,834
Past due	9,454	8,864
Loans held for investment	$ 245,899	$ 254,473	$ 245,586
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Financing Receivable, Percent Current	96.10%	92.30%
Financing Receivable, Percent Past Due	3.80%	3.50%
Financing Receivable, Percentage of Total Loan	100.00%	100.00%
Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums	$ 818	$ 773
Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	111,692	110,182
Past due	4,668	4,578
Loans held for investment	116,361	114,762
Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	54,841	60,775
Past due	4,360	4,010
Loans held for investment	59,205	75,078
Consumer Portfolio Segment \| Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	52,032	50,151
Past due	4,309	3,840
Loans held for investment	56,341	53,991
Consumer Portfolio Segment \| Home loan
Financing Receivable, Recorded Investment, Aging [Abstract]
Current		7,235
Past due		123
Loans held for investment		17,633
Consumer Portfolio Segment \| Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	2,809	3,389
Past due	51	47
Loans held for investment	2,864	3,454
Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	69,777	63,823
Past due	426	272
Loans held for investment	70,333	64,575
Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	40,704	37,412
Past due	279	158
Loans held for investment	41,091	38,025
Commercial Banking \| Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	28,737	26,018
Past due	140	107
Loans held for investment	28,899	26,150
Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	69,441	63,430
Past due	419	265
Loans held for investment	69,990	64,175
Commercial Banking \| Small-ticket commercial real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	336	393
Past due	7	7
Loans held for investment	343	400
Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Current		54
Past due		4
Loans held for investment		58
Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	$ 135	$ 10,775
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Financing Receivable, Percentage of Total Loan	0.10%	4.20%
Financial Asset Acquired with Credit Deterioration [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	$ 1	$ 2
Financial Asset Acquired with Credit Deterioration [Member] \| Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	4	10,293
Financial Asset Acquired with Credit Deterioration [Member] \| Consumer Portfolio Segment \| Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	0	0
Financial Asset Acquired with Credit Deterioration [Member] \| Consumer Portfolio Segment \| Home loan
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment		10,275
Financial Asset Acquired with Credit Deterioration [Member] \| Consumer Portfolio Segment \| Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	4	18
Financial Asset Acquired with Credit Deterioration [Member] \| Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	130	480
Financial Asset Acquired with Credit Deterioration [Member] \| Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	108	455
Financial Asset Acquired with Credit Deterioration [Member] \| Commercial Banking \| Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	22	25
Financial Asset Acquired with Credit Deterioration [Member] \| Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	130	480
Financial Asset Acquired with Credit Deterioration [Member] \| Commercial Banking \| Small-ticket commercial real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	0	0
Financial Asset Acquired with Credit Deterioration [Member] \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment		0
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 4,282	$ 3,945
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Financing Receivable, Percent Past Due	1.70%	1.50%
Financing Receivables, 30 to 59 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 1,397	$ 1,355
Financing Receivables, 30 to 59 Days Past Due [Member] \| Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	2,647	2,544
Financing Receivables, 30 to 59 Days Past Due [Member] \| Consumer Portfolio Segment \| Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	2,624	2,483
Financing Receivables, 30 to 59 Days Past Due [Member] \| Consumer Portfolio Segment \| Home loan
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		37
Financing Receivables, 30 to 59 Days Past Due [Member] \| Consumer Portfolio Segment \| Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	23	24
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	238	44
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	135	1
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Banking \| Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	101	41
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	236	42
Financing Receivables, 30 to 59 Days Past Due [Member] \| Commercial Banking \| Small-ticket commercial real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	2	2
Financing Receivables, 30 to 59 Days Past Due [Member] \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		2
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 2,430	$ 2,166
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Financing Receivable, Percent Past Due	1.00%	0.90%
Financing Receivables, 60 to 89 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 1,032	$ 996
Financing Receivables, 60 to 89 Days Past Due [Member] \| Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	1,334	1,081
Financing Receivables, 60 to 89 Days Past Due [Member] \| Consumer Portfolio Segment \| Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	1,326	1,060
Financing Receivables, 60 to 89 Days Past Due [Member] \| Consumer Portfolio Segment \| Home loan
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		16
Financing Receivables, 60 to 89 Days Past Due [Member] \| Consumer Portfolio Segment \| Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	8	5
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	64	88
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	43	70
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Banking \| Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	20	17
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	63	87
Financing Receivables, 60 to 89 Days Past Due [Member] \| Commercial Banking \| Small-ticket commercial real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	1	1
Financing Receivables, 60 to 89 Days Past Due [Member] \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		1
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 2,742	$ 2,753
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Financing Receivable, Percent Past Due	1.10%	1.10%
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 2,239	$ 2,227
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Consumer Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	379	385
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Consumer Portfolio Segment \| Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	359	297
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Consumer Portfolio Segment \| Home loan
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		70
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Consumer Portfolio Segment \| Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	20	18
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	124	140
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	101	87
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Banking \| Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	19	49
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Banking \| Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	120	136
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Commercial Banking \| Small-ticket commercial real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	4	4
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		1
Domestic credit card \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	103,014	101,072
Past due	4,335	4,219
Loans held for investment	107,350	105,293
Domestic credit card \| Financial Asset Acquired with Credit Deterioration [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	1	2
Domestic credit card \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	1,270	1,211
Domestic credit card \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	954	915
Domestic credit card \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	2,111	2,093
International card business \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	8,678	9,110
Past due	333	359
Loans held for investment	9,011	9,469
International card business \| Financial Asset Acquired with Credit Deterioration [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Loans held for investment	0	0
International card business \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	127	144
International card business \| Financing Receivables, 60 to 89 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	78	81
International card business \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member] \| Credit Card Portfolio Segment
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 128	$ 134

Fair Value Measurement - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis Quantitative Information about Level 3 Fair Value Measurements (Detail) $ in Millions	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) $ / SecurityLoan	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	$ 46,150	$ 37,655
Consumer MSRs		92
Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	46,150	37,655
Recurring \| Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	443	633
Consumer MSRs		92
Retained interests in securitizations	158	172
Net derivative assets (liabilities)	(10)	13	$ 18	$ 30
RMBS
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	33,645	27,792
RMBS \| Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	33,645	27,792
RMBS \| Recurring \| Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	433	614
CMBS \| Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	4,739	3,175
CMBS \| Recurring \| Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	10	14
Other securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	1,622	1,517
Other securities \| Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	1,622	1,517
Other securities \| Recurring \| Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale	$ 0	5
Consumer MSRs \| Recurring \| Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs		$ 92
Yield \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.03	0.02
Yield \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.11	0.09
Yield \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.05	0.05
Yield \| CMBS \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.03	0.03
Yield \| CMBS \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.03	0.03
Yield \| CMBS \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.03	0.03
Yield \| Other securities \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input		0.02
Yield \| Other securities \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input		0.02
Yield \| Other securities \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input		0.02
Constant prepayment rate \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.03	0.02
Constant prepayment rate \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.14	0.12
Constant prepayment rate \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.00	0.00
Constant prepayment rate \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.17	0.15
Constant prepayment rate \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.05	0.04
Constant prepayment rate \| CMBS \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input		0.00
Constant prepayment rate \| CMBS \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input		0.00
Constant prepayment rate \| CMBS \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input		0.00
Constant prepayment rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.07
Constant prepayment rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.30
Constant prepayment rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.16
Default rate \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.02	0.01
Default rate \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.04	0.06
Default rate \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.00	0.00
Default rate \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.07	0.08
Default rate \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.03	0.03
Loss severity \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.50	0.03
Loss severity \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	1.04	1.15
Loss severity \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.00	0.00
Loss severity \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.75	0.90
Loss severity \| RMBS \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.65	0.62
Life of receivables (months) \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input, life of receivables	3 months	6 months
Life of receivables (months) \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input, life of receivables	56 months	79 months
Discount rate \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.04	0.03
Discount rate \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.06	0.10
Discount rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.14
Discount rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.14
Discount rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.14
Swap rates \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net derivative assets (liabilities) Net, measurement input	0.03	0.02
Swap rates \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net derivative assets (liabilities) Net, measurement input	0.03	0.02
Swap rates \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net derivative assets (liabilities) Net, measurement input	0.03	0.02
Option adjusted spread rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.02
Option adjusted spread rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.15
Option adjusted spread rate \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		0.0458
Servicing cost ($ per loan) \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		75
Servicing cost ($ per loan) \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input		100
Servicing cost ($ per loan) \| Consumer MSRs \| Recurring \| Level 3 \| Discounted cash flows \| Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Consumer MSRs, measurement input \| $ / SecurityLoan		76