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)	1,444				1,431			1,431	13
Other comprehensive income (loss)	182						182	182
Preferred stock dividends	(60)				(60)			(60)
Common stock dividends	(438)				(438)			(438)
Issuance of common and treasury stock	156			(43)		199		156
Issuance of common and treasury stock, shares		6
Purchase of treasury stock	(518)					(518)		(518)
Purchase of treasury stock, shares		(12)
Distributions to noncontrolling interests	(14)								(14)
Stock option and restricted stock grants	45			45				45
Ending Balance at Mar. 31, 2015	44,965	$ 21	4,756	8,315	43,463	(11,564)	(714)	44,277	688
Shares, Ending Balance at Mar. 31, 2015		1,780
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)	1,401				1,386			1,386	15
Other comprehensive income (loss)	275						275	275
Preferred stock dividends	(61)				(61)			(61)
Common stock dividends	(444)				(444)			(444)
Issuance of common and treasury stock	31			(61)		92		31
Issuance of common and treasury stock, shares		3
Purchase of treasury stock	(625)					(625)		(625)
Purchase of treasury stock, shares		(16)
Distributions to noncontrolling interests	(13)								(13)
Purchase of noncontrolling interests	(40)			1	9			10	(50)
Stock option and restricted stock grants	52			52				52
Ending Balance at Mar. 31, 2016	$ 47,393	$ 21	$ 5,501	$ 8,368	$ 47,267	$ (13,658)	$ (744)	$ 46,755	$ 638
Shares, Ending Balance at Mar. 31, 2016		1,732