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, 2013	$ 41,807	$ 21	$ 4,756	$ 8,216	$ 38,667	$ (9,476)	$ (1,071)	$ 41,113	$ 694
Shares, Beginning Balance at Dec. 31, 2013		1,825
Net income (loss)	4,407				4,363			4,363	44
Other comprehensive income (loss)	435						435	435
Preferred stock dividends	(181)				(181)			(181)
Common stock dividends	(1,306)				(1,306)			(1,306)
Issuance of common and treasury stock	397			(10)		407		397
Issuance of common and treasury stock, shares		13
Purchase of treasury stock	(1,767)					(1,767)		(1,767)
Purchase of treasury stock, shares		(43)
Distributions to noncontrolling interests	(44)								(44)
Net other changes in noncontrolling interests	(6)								(6)
Stock option and restricted stock grants	87			87				87
Ending Balance at Sep. 30, 2014	43,829	$ 21	4,756	8,293	41,543	(10,836)	(636)	43,141	688
Shares, Ending Balance at Sep. 30, 2014		1,795
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