Document Type Document Type Entity Listings, Exchange [Axis] Entity Listings, Exchange [Axis] Document Information [Line Items] Document Information [Line Items] Amendment Flag Amendment Flag City Area Code City Area Code Entity Address, State or Province Entity Address, State or Province Soliciting Material Soliciting Material Document Period End Date Document Period End Date Entity Tax Identification Number Entity Tax Identification Number Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Exchange [Domain] Exchange [Domain] Class of Stock [Domain] Class of Stock [Domain] New York Stock Exchange NEW YORK STOCK EXCHANGE, INC. [Member] Class of Stock [Axis] Class of Stock [Axis] Entity File Number Entity File Number Entity Central Index Key Entity Central Index Key Common Stock, par value $0.01 per share Common Stock, Par Value $0.01 Per Share [Member] Common Stock, Par Value $0.01 Per Share [Member] Trading Symbol Trading Symbol Entity Address, Postal Zip Code Entity Address, Postal Zip Code Local Phone Number Local Phone Number Written Communications Written Communications Title of 12(b) Security Title of 12(b) Security Security Exchange Name Security Exchange Name Entity Address, City or Town Entity Address, City or Town Cover page. Cover [Abstract] Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, Address Line One Entity Address, Address Line One Depositary Shares, each representing 1/40 interest in a share of 6.50% Non-Cumulative Perpetual Preferred Stock, Series A Depositary Shares, Each Representing 1/40th Interest In A Share Of 6.50% Non-Cumulative Perpetual Preferred Stock, Series A [Member] Depositary Shares, Each Representing 1/40th Interest In A Share Of 6.50% Non-Cumulative Perpetual Preferred Stock, Series A [Member] Entity Emerging Growth Company Entity Emerging Growth Company Entity Registrant Name Entity Registrant Name Document Information [Table] Document Information [Table]