Consolidated Statement of Cash Flows (Unaudited) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Operating Activities
Net income attributable to U.S. Bancorp	$ 3,522	$ 2,343
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	1,846	3,444
Depreciation and amortization of premises and equipment	196	169
Amortization of intangibles	225	278
Provision for deferred income taxes	250	(291)
Gain on sales of securities and other assets, net	(982)	(1,271)
Loans originated for sale in the secondary market, net of repayments	(29,486)	(34,328)
Proceeds from sales of loans held for sale	33,237	31,839
Other, net	(53)	623
Net cash provided by operating activities	8,755	2,806
Investing Activities
Proceeds from sales of available-for-sale investment securities	926	1,113
Proceeds from maturities of held-to-maturity investment securities	714	133
Proceeds from maturities of available-for-sale investment securities	7,872	10,811
Purchases of held-to-maturity investment securities	(15,192)	(64)
Purchases of available-for-sale investment securities	(8,399)	(14,365)
Net increase in loans outstanding	(8,458)	(2,720)
Proceeds from sales of loans	454	1,365
Purchases of loans	(1,750)	(3,669)
Acquisitions, net of cash acquired	650	832
Other, net	(1,006)	(1,151)
Net cash used in investing activities	(24,189)	(7,715)
Financing Activities
Net increase (decrease) in deposits	16,593	3,681
Net increase (decrease) in short-term borrowings	(644)	2,376
Proceeds from issuance of long-term debt	2,002	5,349
Principal payments or redemption of long-term debt	(3,048)	(7,942)
Fees paid on exchange of income trust securities for perpetual preferred stock		(4)
Proceeds from issuance of preferred stock	676
Proceeds from issuance of common stock	125	56
Repurchase of common stock	(383)
Cash dividends paid on preferred stock	(88)	(56)
Cash dividends paid on common stock	(578)	(287)
Net cash provided by (used in) financing activities	14,655	3,173
Change in cash and due from banks	(779)	(1,736)
Cash and due from banks at beginning of period	14,487	6,206
Cash and due from banks at end of period	$ 13,708	$ 4,470