CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions		Total	Preferred stock, Series H	Preferred stock Series I	Preferred stock, Series J	Preferred Stock Series K	Preferred stock, Series L	Class B Preferred stock, Series A	Other	[2]	Cumulative Effect, Period of Adoption, Adjustment		Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Preferred Stock	Capital Surplus	Retained Earnings	Retained Earnings Preferred stock, Series H	Retained Earnings Preferred stock Series I	Retained Earnings Preferred stock, Series J	Retained Earnings Preferred Stock Series K	Retained Earnings Preferred stock, Series L	Retained Earnings Class B Preferred stock, Series A	Retained Earnings Other	[2]	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment		Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock	Total Bancorp Shareholders’ Equity	Total Bancorp Shareholders’ Equity Preferred stock, Series H	Total Bancorp Shareholders’ Equity Preferred stock Series I	Total Bancorp Shareholders’ Equity Preferred stock, Series J	Total Bancorp Shareholders’ Equity Preferred Stock Series K	Total Bancorp Shareholders’ Equity Preferred stock, Series L	Total Bancorp Shareholders’ Equity Class B Preferred stock, Series A	Total Bancorp Shareholders’ Equity Other	[2]	Total Bancorp Shareholders’ Equity Cumulative Effect, Period of Adoption, Adjustment		Total Bancorp Shareholders’ Equity Cumulative Effect, Period of Adoption, Adjusted Balance	Non- Controlling Interests
Beginning balance at Dec. 31, 2017		$ 16,220									$ 4		$ 16,224	$ 2,051	$ 1,331	$ 2,790	$ 14,957									$ 6		$ 14,963	$ 73	$ (2)	$ 71	$ (5,002)	$ 16,200									$ 4		$ 16,204	$ 20
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		2,193															2,193																2,193
Other comprehensive income (loss), net of tax		(183)																											(183)				(183)
Cash dividends declared:
Common stock		(499)															(499)																(499)
Preferred stock	[1]		$ (30)	$ (30)	$ (15)													$ (30)	$ (30)	$ (15)														$ (30)	$ (30)	$ (15)
Shares acquired for treasury		(1,453)														41																(1,494)	(1,453)
Impact of stock transactions under stock compensation plans, net		65														42																23	65
Other		(22)															(4)															2	(2)												(20)
Ending balance at Dec. 31, 2018		16,250									10		16,260	2,051	1,331	2,873	16,578									10		16,588	(112)			(6,471)	16,250									10		16,260	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		2,512															2,512																2,512
Other comprehensive income (loss), net of tax		1,304																											1,304				1,304
Cash dividends declared:
Common stock		(691)															(691)																(691)
Preferred stock	[1]		(30)	(30)	(19)	$ (4)		$ (4)	$ (6)									(30)	(30)	(19)	$ (4)		$ (4)	$ (6)										(30)	(30)	(19)	$ (4)		$ (4)	$ (6)
Shares acquired for treasury		(1,763)																														(1,763)	(1,763)
Issuance of preferred stock		242													242																		242
Conversion of outstanding preferred stock issued by a Bancorp subsidiary		0													197																		197												(197)
Impact of MB Financial, Inc. acquisition		3,356														712																2,447	3,159												197
Impact of stock transactions under stock compensation plans, net		72														14	2															56	72
Other		4															(3)															7	4
Ending balance at Dec. 31, 2019		21,203									$ (472)	[3]	20,731	2,051	1,770	3,599	18,315									$ (472)	[3]	17,843	1,192			(5,724)	21,203									$ (472)	[3]	20,731	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income		1,427															1,427																1,427
Other comprehensive income (loss), net of tax		1,409																											1,409				1,409
Cash dividends declared:
Common stock		(780)															(780)																(780)
Preferred stock	[1]		$ (31)	$ (30)	$ (12)	$ (12)	$ (7)	$ (12)										$ (31)	$ (30)	$ (12)	$ (12)	$ (7)	$ (12)											$ (31)	$ (30)	$ (12)	$ (12)	$ (7)	$ (12)
Issuance of preferred stock		346													346																		346
Impact of stock transactions under stock compensation plans, net		82														36																46	82
Other		0															$ (2)															2	$ 0
Ending balance at Dec. 31, 2020		$ 23,111											$ 23,111	$ 2,051	$ 2,116	$ 3,635												$ 18,384	$ 2,601			$ (5,676)												$ 23,111	$ 0

[1] Refer to Note 25 for further information on dividends declared for preferred stock.

[2] Dividends declared for Perpetual Preferred Stock, Series C, of MB Financial, Inc., previously a subsidiary of the Bancorp.

[3] Related to the adoption of ASU 2016-13 as of January 1, 2020. Refer to Note 1 for additional information.