Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 1,569	$ 1,516	$ 4,567	$ 4,453
Other Comprehensive Income (Loss)
Changes in unrealized gains and losses on securities available-for-sale	24	(105)	479	716
Other-than-temporary impairment not recognized in earnings on securities available-for-sale				(1)
Changes in unrealized gains and losses on derivative hedges	(3)	31	(33)	(152)
Foreign currency translation	2	6	11	(30)
Reclassification to earnings of realized gains and losses	21	54	58	196
Income taxes related to other comprehensive income (loss)	(17)	(3)	(199)	(289)
Total other comprehensive income (loss)	27	(17)	316	440
Comprehensive income	1,596	1,499	4,883	4,893
Comprehensive (income) loss attributable to noncontrolling interests	(6)	(14)	(31)	(43)
Comprehensive income attributable to U.S. Bancorp	$ 1,590	$ 1,485	$ 4,852	$ 4,850