Consolidated Statement of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,444	$ 1,378	$ 2,831	$ 2,683
Other comprehensive income (loss)
Changes in unrealized gains and losses on securities available-for-sale	(675)	132	(795)	438
Other-than-temporary impairment not recognized in earnings on securities available-for-sale	1	1	7	1
Changes in unrealized gains and losses on derivative hedges	53	(40)	50	(38)
Foreign currency translation	(23)	(6)	(33)	8
Changes in unrealized gains and losses on retirement plans			(1)
Reclassification to earnings of realized gains and losses	80	100	171	191
Income taxes related to other comprehensive income	217	(73)	236	(230)
Total other comprehensive income (loss)	(347)	114	(365)	370
Comprehensive income	1,097	1,492	2,466	3,053
Comprehensive (income) loss attributable to noncontrolling interests	40	37	81	70
Comprehensive income attributable to U.S. Bancorp	$ 1,137	$ 1,529	$ 2,547	$ 3,123

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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