Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating Activities
Net income attributable to U.S. Bancorp	$ 1,473	$ 1,386
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	345	330
Depreciation and amortization of premises and equipment	73	74
Amortization of intangibles	44	45
(Gain) loss on sale of loans held for sale	(116)	(194)
(Gain) loss on sale of securities and other assets	(146)	(90)
Loans originated for sale in the secondary market, net of repayments	(7,802)	(8,883)
Proceeds from sales of loans held for sale	9,968	8,198
Other, net	(649)	395
Net cash provided by operating activities	3,190	1,261
Investing Activities
Proceeds from sales of available-for-sale investment securities	828	530
Proceeds from maturities of held-to-maturity investment securities	2,085	2,088
Proceeds from maturities of available-for-sale investment securities	2,786	3,212
Purchases of held-to-maturity investment securities	(2,500)	(625)
Purchases of available-for-sale investment securities	(4,253)	(6,183)
Net increase in loans outstanding	(250)	(3,702)
Proceeds from sales of loans	439	299
Purchases of loans	(932)	(658)
Other, net	76	150
Net cash used in investing activities	(1,721)	(4,889)
Financing Activities
Net increase in deposits	2,283	5,950
Net decrease in short-term borrowings	(1,780)	(4,100)
Proceeds from issuance of long-term debt	3,162	6,607
Principal payments or redemption of long-term debt	(473)	(3,907)
Proceeds from issuance of preferred stock	993
Proceeds from issuance of common stock	112	33
Repurchase of common stock	(594)	(568)
Cash dividends paid on preferred stock	(80)	(66)
Cash dividends paid on common stock	(478)	(447)
Purchase of noncontrolling interests		(40)
Net cash provided by financing activities	3,145	3,462
Change in cash and due from banks	4,614	(166)
Cash and due from banks at beginning of period	15,705	11,147
Cash and due from banks at end of period	$ 20,319	$ 10,981