Consolidated Statement of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating Activities
Net income attributable to U.S. Bancorp	$ 6,290	$ 3,440
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	(1,160)	3,365
Depreciation and amortization of premises and equipment	253	264
Amortization of intangibles	119	129
(Gain) loss on sale of loans held for sale	(950)	(1,613)
(Gain) loss on sale of securities and other assets	(297)	(274)
Loans originated for sale, net of repayments	(56,256)	(46,456)
Proceeds from sales of loans held for sale	58,517	45,469
Other, net	2,651	461
Net cash provided by operating activities	9,167	4,785
Investing Activities
Proceeds from sales of available-for-sale investment securities	13,383	13,920
Proceeds from maturities of available-for-sale investment securities	33,740	24,992
Purchases of available-for-sale investment securities	(62,764)	(48,481)
Net increase in loans outstanding	(1,157)	(3,915)
Proceeds from sales of loans	4,228	1,429
Purchases of loans	(3,278)	(9,561)
Net (increase) decrease in securities purchased under agreements to resell	(41)	732
Other, net	120	(966)
Net cash used in investing activities	(15,769)	(21,850)
Financing Activities
Net increase in deposits	13,132	51,301
Net increase (decrease) in short-term borrowings	4,322	(10,000)
Proceeds from issuance of long-term debt	1,211	14,282
Principal payments or redemption of long-term debt	(6,603)	(13,088)
Proceeds from issuance of preferred stock	730
Proceeds from issuance of common stock	38	11
Repurchase of preferred stock	(1,250)
Repurchase of common stock	(1,537)	(1,660)
Cash dividends paid on preferred stock	(223)	(222)
Cash dividends paid on common stock	(1,894)	(1,917)
Net cash provided by financing activities	7,926	38,707
Change in cash and due from banks	1,324	21,642
Cash and due from banks at beginning of period	62,580	22,405
Cash and due from banks at end of period	$ 63,904	$ 44,047