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, 2014	$ 44,168	$ 21	$ 4,756	$ 8,313	$ 42,530	$ (11,245)	$ (896)	$ 43,479	$ 689
Shares, Beginning Balance at Dec. 31, 2014		1,786
Net income (loss)	4,444				4,403			4,403	41
Other comprehensive income (loss)	175						175	175
Preferred stock dividends	(182)				(182)			(182)
Common stock dividends	(1,338)				(1,338)			(1,338)
Issuance of common and treasury stock	274			(45)		319		274
Issuance of common and treasury stock, shares		10
Purchase of treasury stock	(1,830)					(1,830)		(1,830)
Purchase of treasury stock, shares		(42)
Distributions to noncontrolling interests	(41)								(41)
Net other changes in noncontrolling interests	3								3
Stock option and restricted stock grants	94			94				94
Ending Balance at Sep. 30, 2015	45,767	$ 21	4,756	8,362	45,413	(12,756)	(721)	45,075	692
Shares, Ending Balance at Sep. 30, 2015		1,754
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)	4,453				4,410			4,410	43
Other comprehensive income (loss)	440						440	440
Preferred stock dividends	(201)				(201)			(201)
Common stock dividends	(1,364)				(1,364)			(1,364)
Issuance of common and treasury stock	169			(59)		228		169
Issuance of common and treasury stock, shares		7
Purchase of treasury stock	(1,947)					(1,947)		(1,947)
Purchase of treasury stock, shares		(47)
Distributions to noncontrolling interests	(38)								(38)
Purchase of noncontrolling interests	(40)			1	9			10	(50)
Net other changes in noncontrolling interests	(1)								(1)
Stock option and restricted stock grants	111			111				111
Ending Balance at Sep. 30, 2016	$ 48,399	$ 21	$ 5,501	$ 8,429	$ 49,231	$ (14,844)	$ (579)	$ 47,759	$ 640
Shares, Ending Balance at Sep. 30, 2016		1,705