Entity Address, State or Province Entity Address, State or Province 0.800% Senior Notes Due 2024 Senior Notes Due 2024 [Member] 0.800% Senior Notes Due 2024 Entity Tax Identification Number Entity Tax Identification Number Title of 12(b) Security Title of 12(b) Security Entity File Number Entity File Number Written Communications Written Communications Entity Emerging Growth Company Entity Emerging Growth Company Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series I Series I Preferred Stock [Member] Outstanding nonredeemable series I preferred stock or outstanding series I preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Soliciting Material Soliciting Material Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series N Series N Preferred Stock [Member] Series N Preferred Stock Member City Area Code City Area Code Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line One Entity Information [Line Items] Entity Information [Line Items] Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series K Series K Preferred Stock Member [Member] Outstanding nonredeemable series K preferred stock or outstanding series K preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Local Phone Number Local Phone Number Class of Securities [Axis] Class of Securities [Axis] Class of Securities Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Pre-commencement Tender Offer Pre-commencement Tender Offer Amendment Flag Amendment Flag Common Stock (par value $.01 per share) Common Stock [Member] Class of Securities [Domain] Security Class [Domain] [Domain] for Security Class Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series J Series J Preferred Stock [Member] Outstanding nonredeemable series J preferred stock or outstanding series J preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Trading Symbol Trading Symbol Document Period End Date Document Period End Date Class of Stock [Domain] Class of Stock [Domain] Document Type Document Type Class of Stock [Axis] Class of Stock [Axis] Entity Registrant Name Entity Registrant Name Entity Address, City or Town Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, Postal Zip Code Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series L Series L Preferred Stock Member [Member] Series L Preferred Stock Member Entities [Table] Entities [Table] Entity Central Index Key Entity Central Index Key 1.650% Senior Notes Due 2029 Senior Notes Due 2029 [Member] 1.650% Senior Notes Due 2029 Security Exchange Name Security Exchange Name