Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 1,512	$ 1,536	$ 2,998	$ 2,937
Other Comprehensive Income (Loss)
Changes in unrealized gains and losses on securities available-for-sale	328	333	455	821
Other-than-temporary impairment not recognized in earnings on securities available-for-sale		1		(1)
Changes in unrealized gains and losses on derivative hedges	(37)	(87)	(30)	(183)
Foreign currency translation	(1)	(20)	9	(36)
Reclassification to earnings of realized gains and losses	26	66	37	142
Income taxes related to other comprehensive income (loss)	(123)	(111)	(182)	(286)
Total other comprehensive income (loss)	193	182	289	457
Comprehensive income	1,705	1,718	3,287	3,394
Comprehensive (income) loss attributable to noncontrolling interests	(12)	(14)	(25)	(29)
Comprehensive income attributable to U.S. Bancorp	$ 1,693	$ 1,704	$ 3,262	$ 3,365