Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Preferred Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total U.S. Bancorp Shareholders' Equity [Member]	Noncontrolling Interests [Member]
Beginning Balance at Dec. 31, 2015	$ 46,817	$ 21	$ 5,501	$ 8,376	$ 46,377	$ (13,125)	$ (1,019)	$ 46,131	$ 686
Shares, Beginning Balance at Dec. 31, 2015		1,745
Net income (loss)	2,937
Net (income) loss attributable to noncontrolling interests	(29)								(29)
Net income attributable to U.S. Bancorp	2,908				2,908			2,908
Other comprehensive income (loss)	457						457	457
Preferred stock dividends	(140)				(140)			(140)
Common stock dividends	(885)				(885)			(885)
Issuance of common and treasury stock	119			(57)		176		119
Issuance of common and treasury stock, shares		5
Purchase of treasury stock	(1,292)					(1,292)		(1,292)
Purchase of treasury stock, shares		(31)
Distributions to noncontrolling interests	(25)								(25)
Purchase of noncontrolling interests	(40)			1	9			10	(50)
Net other changes in noncontrolling interests	(1)								(1)
Stock option and restricted stock grants	82			82				82
Ending Balance at Jun. 30, 2016	48,029	$ 21	5,501	8,402	48,269	(14,241)	(562)	47,390	639
Shares, Ending Balance at Jun. 30, 2016		1,719
Beginning Balance at Dec. 31, 2016	47,933	$ 21	5,501	8,440	50,151	(15,280)	(1,535)	47,298	635
Shares, Beginning Balance at Dec. 31, 2016		1,697
Net income (loss)	2,998
Net (income) loss attributable to noncontrolling interests	(25)								(25)
Net income attributable to U.S. Bancorp	2,973				2,973			2,973
Other comprehensive income (loss)	289						289	289
Preferred stock dividends	(133)				(133)			(133)
Common stock dividends	(948)				(948)			(948)
Issuance of preferred stock	993		993					993
Redemption of preferred stock	(1,085)		(1,075)		(10)			(1,085)
Issuance of common and treasury stock	127			(111)		238		127
Issuance of common and treasury stock, shares		7
Purchase of treasury stock	(1,290)					(1,290)		(1,290)
Purchase of treasury stock, shares		(25)
Distributions to noncontrolling interests	(34)								(34)
Net other changes in noncontrolling interests	3								3
Stock option and restricted stock grants	96			96				96
Ending Balance at Jun. 30, 2017	$ 48,949	$ 21	$ 5,419	$ 8,425	$ 52,033	$ (16,332)	$ (1,246)	$ 48,320	$ 629
Shares, Ending Balance at Jun. 30, 2017		1,679