Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 1,516	$ 1,503	$ 4,453	$ 4,444
Other Comprehensive Income (Loss)
Changes in unrealized gains and losses on securities available-for-sale	(105)	202	716	54
Other-than-temporary impairment not recognized in earnings on securities available-for-sale			(1)
Changes in unrealized gains and losses on derivative hedges	31	(38)	(152)	(61)
Foreign currency translation	6	(28)	(30)	(3)
Reclassification to earnings of realized gains and losses	54	98	196	295
Income taxes related to other comprehensive income (loss)	(3)	(90)	(289)	(110)
Total other comprehensive income (loss)	(17)	144	440	175
Comprehensive income	1,499	1,647	4,893	4,619
Comprehensive (income) loss attributable to noncontrolling interests	(14)	(14)	(43)	(41)
Comprehensive income attributable to U.S. Bancorp	$ 1,485	$ 1,633	$ 4,850	$ 4,578