Consolidated Statement of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest Income
Loans	$ 2,568	$ 2,650	$ 7,682	$ 7,919
Loans held for sale	46	76	172	208
Investment securities	420	438	1,222	1,376
Other interest income	34	63	141	184
Total interest income	3,068	3,227	9,217	9,687
Interest Expense
Deposits	134	172	433	530
Short-term borrowings	98	103	270	353
Long-term debt	178	226	587	786
Total interest expense	410	501	1,290	1,669
Net interest income	2,658	2,726	7,927	8,018
Provision for credit losses	298	488	1,063	1,439
Net interest income after provision for credit losses	2,360	2,238	6,864	6,579
Noninterest Income
Credit and debit card revenue	244	213	702	650
Corporate payment products revenue	192	201	540	566
Merchant processing services	371	345	1,091	1,041
ATM processing services	83	87	248	263
Trust and investment management fees	280	265	842	779
Deposit service charges	180	174	493	483
Treasury management fees	134	135	408	411
Commercial products revenue	207	225	616	652
Mortgage banking revenue	328	519	1,125	1,461
Investment products fees	46	38	133	111
Securities gains (losses), net
Realized gains (losses), net		16	21	46
Total other-than-temporary impairment	(2)	(13)	(5)	(61)
Portion of other-than-temporary impairment recognized in other comprehensive income	(1)	(2)	(8)	(3)
Total securities gains (losses), net	(3)	1	8	(18)
Other	115	193	412	591
Total noninterest income	2,177	2,396	6,618	6,990
Noninterest Expense
Compensation	1,088	1,109	3,268	3,237
Employee benefits	278	225	865	714
Net occupancy and equipment	240	233	709	683
Professional services	94	144	263	364
Marketing and business development	85	96	254	285
Technology and communications	214	205	639	607
Postage, printing and supplies	76	75	230	226
Other intangibles	55	67	167	208
Other	435	455	1,197	1,446
Total noninterest expense	2,565	2,609	7,592	7,770
Income before income taxes	1,972	2,025	5,890	5,799
Applicable income taxes	542	593	1,629	1,684
Net income	1,430	1,432	4,261	4,115
Net (income) loss attributable to noncontrolling interests	38	42	119	112
Net income attributable to U.S. Bancorp	1,468	1,474	4,380	4,227
Net income applicable to U.S. Bancorp common shareholders	$ 1,400	$ 1,404	$ 4,163	$ 4,034
Earnings per common share	$ 0.76	$ 0.74	$ 2.26	$ 2.13
Diluted earnings per common share	$ 0.76	$ 0.74	$ 2.25	$ 2.12
Dividends declared per common share	$ 0.230	$ 0.195	$ 0.655	$ 0.585
Average common shares outstanding	1,832	1,886	1,844	1,892
Average diluted common shares outstanding	1,843	1,897	1,854	1,901