Class of Stock [Domain] Class of Stock [Domain] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entities [Table] Entities [Table] Class of Stock [Axis] Class of Stock [Axis] Depositary Shares Representing a 1/1000th Ownership Interest in a Share of Depositary Shares Representing A 11000th Ownership Interest In A Share Of 4.95 Not Cumulative Perpetual Preferred Stock Series K [Member] Depositary Shares Representing A 11000th Ownership Interest In A Share Of 4.95 Not Cumulative Perpetual Preferred Stock Series K Security Exchange Name Security Exchange Name Depositary Shares Representing a 1/1000th Ownership Interest in a Share of Depositary Shares Representing A 1/1000th Ownership Interest In A Share Of 6.625 Fixed To Floating Rate Not Cumulative Perpetual Preferred Stock Series I [Member] Depositary Shares Representing A 1/1000th Ownership Interest In A Share Of 6.625 Fixed To Floating Rate Not Cumulative Perpetual Preferred Stock Series I Entity Address, City or Town Entity Address, City or Town Soliciting Material Soliciting Material Cover [Abstract] Cover [Abstract] City Area Code City Area Code Common Stock Common Stock [Member] Entity Tax Identification Number Entity Tax Identification Number Amendment Flag Amendment Flag Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Emerging Growth Company Entity Emerging Growth Company Depositary Shares Representing a 1/40th Ownership Interest in a Share of 6.875% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series M Depositary Shares Representing a 1/40th Ownership Interest in a Share of 6.875% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series M [Member] Depositary Shares Representing a 1/40th Ownership Interest in a Share of 6.875% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series M Depositary Shares Representing a 1/40th Ownership Interest in a Share of Depositary Shares Representing A 140th Ownership Interest In A Share Of 6.00 Not Cumulative Perpetual Class B Preferred Stock Series A [Member] Depositary Shares Representing A 140th Ownership Interest In A Share Of 6.00 Not Cumulative Perpetual Class B Preferred Stock Series A Entity Central Index Key Entity Central Index Key Entity File Number Entity File Number Entity Address, State or Province Entity Address, State or Province Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, Address Line One Entity Address, Address Line One Entity Address, Postal Zip Code Entity Address, Postal Zip Code Written Communications Written Communications Entity Address, Address Line Two Entity Address, Address Line Two Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Document Period End Date Document Period End Date Entity Information [Line Items] Entity Information [Line Items] Document Type Document Type