Consolidated Statement of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating Activities
Net income attributable to U.S. Bancorp	$ 1,397	$ 1,428
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	306	403
Depreciation and amortization of premises and equipment	74	74
Amortization of intangibles	49	57
Provision for deferred income taxes	(77)	10
(Gain) loss on sale of loans held for sale	(174)	(479)
(Gain) loss on sale of securities and other assets	(24)	5
Loans originated for sale in the secondary market, net of repayments	(5,419)	(20,477)
Proceeds from sales of loans held for sale	7,027	21,063
Other, net	(387)	(416)
Net cash provided by operating activities	2,772	1,668
Investing Activities
Proceeds from sales of available-for-sale investment securities	295	166
Proceeds from maturities of held-to-maturity investment securities	2,559	2,425
Proceeds from maturities of available-for-sale investment securities	1,230	3,203
Purchases of held-to-maturity investment securities	(4,369)	(2,776)
Purchases of available-for-sale investment securities	(5,062)	(3,925)
Net increase in loans outstanding	(3,146)	(317)
Proceeds from sales of loans	174	285
Purchases of loans	(548)	(727)
Other, net	222	142
Net cash used in investing activities	(8,645)	(1,524)
Financing Activities
Net decrease in deposits	(1,511)	(1,171)
Net increase in short-term borrowings	3,173	824
Proceeds from issuance of long-term debt	4,815	105
Principal payments or redemption of long-term debt	(994)	(370)
Proceeds from issuance of common stock	236	79
Repurchase of common stock	(433)	(500)
Cash dividends paid on preferred stock	(61)	(64)
Cash dividends paid on common stock	(421)	(367)
Net cash provided by (used in) financing activities	4,804	(1,464)
Change in cash and due from banks	(1,069)	(1,320)
Cash and due from banks at beginning of period	8,477	8,252
Cash and due from banks at end of period	$ 7,408	$ 6,932