Consolidated Statement of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Preferred Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total U.S. Bancorp Shareholders' Equity [Member]	Total U.S. Bancorp Shareholders' Equity [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Noncontrolling Interests [Member]
Beginning Balance at Dec. 31, 2021	$ 55,387		$ 21	$ 6,371	$ 8,539	$ 69,201		$ (27,271)	$ (1,943)	$ 54,918		$ 469
Shares, Beginning Balance at Dec. 31, 2021			1,484
Net income (loss)	4,908					4,900				4,900		8
Other comprehensive income (loss)	(10,557)								(10,557)	(10,557)
Preferred stock dividends	(228)					(228)				(228)
Common stock dividends	(2,091)					(2,091)				(2,091)
Issuance of preferred stock	437			437						437
Issuance of common and treasury stock	18				(120)			138		18
Issuance of common and treasury stock, shares			3
Purchase of treasury stock	(55)							(55)		(55)
Purchase of treasury stock, shares			(1)
Distributions to noncontrolling interests	(8)											(8)
Net other changes in noncontrolling interests	(4)											(4)
Stock option and restricted stock grants	171				171					171
Shares, Ending Balance at Sep. 30, 2022			1,486
Ending Balance at Sep. 30, 2022	47,978		$ 21	6,808	8,590	71,782		(27,188)	(12,500)	47,513		465
Beginning Balance at Jun. 30, 2022	49,069		$ 21	6,808	8,555	70,772		(27,190)	(10,361)	48,605		464
Shares, Beginning Balance at Jun. 30, 2022			1,486
Net income (loss)	1,816					1,812				1,812		4
Other comprehensive income (loss)	(2,139)								(2,139)	(2,139)
Preferred stock dividends	(85)					(85)				(85)
Common stock dividends	(717)					(717)				(717)
Issuance of common and treasury stock	1				(1)			2		1
Distributions to noncontrolling interests	(4)											(4)
Net other changes in noncontrolling interests	1											1
Stock option and restricted stock grants	36				36					36
Shares, Ending Balance at Sep. 30, 2022			1,486
Ending Balance at Sep. 30, 2022	47,978		$ 21	6,808	8,590	71,782		(27,188)	(12,500)	47,513		465
Beginning Balance at Dec. 31, 2022	51,232	$ 46	$ 21	6,808	8,712	71,901		(25,269)	(11,407)	50,766	$ 46	466
Shares, Beginning Balance at Dec. 31, 2022			1,531
Net income (loss)	4,597					4,582	$ 46			4,582		15
Other comprehensive income (loss)	(848)								(848)	(848)
Preferred stock dividends	(273)					(273)				(273)
Common stock dividends	(2,233)					(2,233)				(2,233)
Issuance of common and treasury stock	931				(215)			1,146		931
Issuance of common and treasury stock, shares			27
Purchase of treasury stock	(45)							(45)		(45)
Purchase of treasury stock, shares			(1)
Distributions to noncontrolling interests	(15)											(15)
Net other changes in noncontrolling interests	(1)											(1)
Stock option and restricted stock grants	187				187					187
Shares, Ending Balance at Sep. 30, 2023			1,557
Ending Balance at Sep. 30, 2023	53,578		$ 21	6,808	8,684	74,023		(24,168)	(12,255)	53,113		465
Beginning Balance at Jun. 30, 2023	53,484		$ 21	6,808	8,742	73,355		(25,189)	(10,718)	53,019		465
Shares, Beginning Balance at Jun. 30, 2023			1,533
Net income (loss)	1,524					1,523				1,523		1
Other comprehensive income (loss)	(1,537)								(1,537)	(1,537)
Preferred stock dividends	(102)					(102)				(102)
Common stock dividends	(753)					(753)				(753)
Issuance of common and treasury stock	923				(99)			1,022		923
Issuance of common and treasury stock, shares			24
Purchase of treasury stock	(1)							(1)		(1)
Distributions to noncontrolling interests	(1)											(1)
Stock option and restricted stock grants	41				41					41
Shares, Ending Balance at Sep. 30, 2023			1,557
Ending Balance at Sep. 30, 2023	$ 53,578		$ 21	$ 6,808	$ 8,684	$ 74,023		$ (24,168)	$ (12,255)	$ 53,113		$ 465