Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 1,758	$ 1,512	$ 3,440	$ 2,998
Other Comprehensive Income (Loss)
Changes in unrealized gains and losses on investment securities available-for-sale	(212)	328	(988)	455
Changes in unrealized gains and losses on derivative hedges	33	(37)	119	(30)
Foreign currency translation	(8)	(1)	5	9
Changes in unrealized gains and losses on retirement plans	2		(1)
Reclassification to earnings of realized gains and losses	21	26	50	37
Income taxes related to other comprehensive income (loss)	42	(123)	204	(182)
Total other comprehensive income (loss)	(122)	193	(611)	289
Comprehensive income	1,636	1,705	2,829	3,287
Comprehensive (income) loss attributable to noncontrolling interests	(8)	(12)	(15)	(25)
Comprehensive income attributable to U.S. Bancorp	$ 1,628	$ 1,693	$ 2,814	$ 3,262

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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Amount before tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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