Consolidated Statement of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net income attributable to U.S. Bancorp	$ 4,262	$ 1,860
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	(997)	2,730
Depreciation and amortization of premises and equipment	168	175
Amortization of intangibles	78	85
(Gain) loss on sale of loans held for sale	(584)	(867)
(Gain) loss on sale of securities and other assets	(192)	(227)
Loans originated for sale, net of repayments	(37,211)	(26,821)
Proceeds from sales of loans held for sale	39,789	24,935
Other, net	1,207	(369)
Net cash provided by operating activities	6,520	1,501
Investing Activities
Proceeds from sales of available-for-sale investment securities	5,567	13,366
Proceeds from maturities of available-for-sale investment securities	23,685	13,945
Purchases of available-for-sale investment securities	(54,911)	(30,561)
Net decrease (increase) in loans outstanding	727	(14,245)
Proceeds from sales of loans	2,386	1,014
Purchases of loans	(2,574)	(1,743)
Net decrease in securities purchased under agreements to resell	131	627
Other, net	(367)	(398)
Net cash used in investing activities	(25,356)	(17,995)
Financing Activities
Net increase in deposits	7,412	51,390
Net increase (decrease) in short-term borrowings	1,647	(3,128)
Proceeds from issuance of long-term debt	1,152	12,801
Principal payments or redemption of long-term debt	(5,928)	(11,500)
Proceeds from issuance of preferred stock	730
Proceeds from issuance of common stock	36	10
Repurchase of preferred stock	(1,250)
Repurchase of common stock	(1,537)	(1,660)
Cash dividends paid on preferred stock	(165)	(150)
Cash dividends paid on common stock	(1,268)	(1,282)
Net cash provided by financing activities	829	46,481
Change in cash and due from banks	(18,007)	29,987
Cash and due from banks at beginning of period	62,580	22,405
Cash and due from banks at end of period	$ 44,573	$ 52,392