Consolidated Statement of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 1,822	$ 1,569	$ 5,262	$ 4,567
Other Comprehensive Income (Loss)
Changes in unrealized gains and losses on investment securities available-for-sale	(411)	24	(1,399)	479
Changes in unrealized gains and losses on derivative hedges	40	(3)	159	(33)
Foreign currency translation	7	2	12	11
Changes in unrealized gains and losses on retirement plans			(1)
Reclassification to earnings of realized gains and losses	20	21	70	58
Income taxes related to other comprehensive income (loss)	86	(17)	290	(199)
Total other comprehensive income (loss)	(258)	27	(869)	316
Comprehensive income	1,564	1,596	4,393	4,883
Comprehensive (income) loss attributable to noncontrolling interests	(7)	(6)	(22)	(31)
Comprehensive income attributable to U.S. Bancorp	$ 1,557	$ 1,590	$ 4,371	$ 4,852

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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