Consolidated Statement of Shareholders' Equity - USD ($) shares in Millions, $ in Millions		Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	[1]	Common Stock [Member]	Preferred Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	[1]	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]	[1]	Noncontrolling Interests [Member]
Beginning Balance at Dec. 31, 2019		$ 52,483	$ (1,099)		$ 21	$ 5,984	$ 8,475	$ 63,186	$ (1,099)		$ (24,440)	$ (1,373)	$ 51,853	$ (1,099)		$ 630
Shares, Beginning Balance at Dec. 31, 2019					1,534
Net income (loss)		1,179						1,171					1,171			8
Other comprehensive income (loss)		1,876										1,876	1,876
Preferred stock dividends	[2]	(78)						(78)					(78)
Common stock dividends		(636)						(636)					(636)
Issuance of common and treasury stock		9					(108)				117		9
Issuance of common and treasury stock, shares					3
Purchase of treasury stock		(1,649)									(1,649)		(1,649)
Purchase of treasury stock, shares					(31)
Distributions to noncontrolling interests		(8)														(8)
Stock option and restricted stock grants		85					85						85
Shares, Ending Balance at Mar. 31, 2020					1,506
Ending Balance at Mar. 31, 2020		52,162			$ 21	5,984	8,452	62,544			(25,972)	503	51,532			630
Beginning Balance at Dec. 31, 2020		53,725			$ 21	5,983	8,511	64,188			(25,930)	322	53,095			630
Shares, Beginning Balance at Dec. 31, 2020					1,507
Net income (loss)		2,285						2,280					2,280			5
Other comprehensive income (loss)		(2,417)										(2,417)	(2,417)
Preferred stock dividends	[3]	(90)						(90)					(90)
Common stock dividends		(633)						(633)					(633)
Issuance of preferred stock		730				730							730
Call of preferred stock		(750)				(745)		(5)					(750)
Issuance of common and treasury stock		18					(119)				137		18
Issuance of common and treasury stock, shares					3
Purchase of treasury stock		(650)									(650)		(650)
Purchase of treasury stock, shares					(13)
Distributions to noncontrolling interests		(5)														(5)
Stock option and restricted stock grants		95					95						95
Shares, Ending Balance at Mar. 31, 2021					1,497
Ending Balance at Mar. 31, 2021		$ 52,308			$ 21	$ 5,968	$ 8,487	$ 65,740			$ (26,443)	$ (2,095)	$ 51,678			$ 630

[1] Effective January 1, 2020, the Company adopted accounting guidance which changed impairment recognition of financial instruments to a model that is based on expected losses rather than incurred losses. Upon adoption, the Company increased its allowance for credit losses and reduced retained earnings net of deferred taxes through a cumulative-effect adjustment.

[2] Reflects dividends declared per share on the Company’s Series A, Series B, Series F, Series H, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $884.722, $221.18, $406.25, $321.88, $662.50 and $343.75, respectively.

[3] Reflects dividends declared per share on the Company’s Series A, Series B, Series F, Series I, Series J, Series K, Series L and Series M Non-Cumulative Perpetual Preferred Stock of $875.00, $218.75, $406.25, $232.953, $662.50, $343.75, $234.375, and $202.778 respectively.