Business Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Condensed Income Statement
Net interest income (taxable-equivalent basis)	$ 4,052	$ 4,449	$ 8,067	$ 9,117
Noninterest income	2,815	2,726	5,515	5,233
Total net revenue	6,867	7,175	13,582	14,350
Noninterest expense	4,214	4,569	8,673	9,124
Income (loss) before provision and income taxes	2,653	2,606	4,909	5,226
Provision for credit losses	568	821	1,121	1,248
Income (loss) before income taxes	2,085	1,785	3,788	3,978
Income taxes and taxable-equivalent adjustment	474	416	851	905
Net income	1,611	1,369	2,937	3,073
Net (income) loss attributable to noncontrolling interests	(8)	(8)	(15)	(14)
Net income attributable to U.S. Bancorp	1,603	1,361	2,922	3,059
Average Balance Sheet
Loans	374,685	388,817	372,878	387,789
Other earning assets	234,207	225,022	229,635	222,955
Goodwill	12,477	12,512	12,480	12,468
Other intangible assets	6,031	6,724	6,048	6,885
Assets	665,504	673,012	659,707	669,251
Noninterest-bearing deposits	83,418	113,758	84,102	121,705
Interest-bearing deposits	430,491	383,507	424,383	382,053
Total deposits	513,909	497,265	508,485	503,758
Total U.S. Bancorp shareholders’ equity	56,029	53,822	55,849	53,248
Lease revenue	195	186	382	369
Wealth, Corporate, Commercial and Institutional Banking
Condensed Income Statement
Net interest income (taxable-equivalent basis)	1,906	1,894	3,810	3,857
Noninterest income	1,131	1,071	2,244	2,090
Total net revenue	3,037	2,965	6,054	5,947
Noninterest expense	1,374	1,380	2,746	2,738
Income (loss) before provision and income taxes	1,663	1,585	3,308	3,209
Provision for credit losses	100	162	241	135
Income (loss) before income taxes	1,563	1,423	3,067	3,074
Income taxes and taxable-equivalent adjustment	391	356	767	769
Net income	1,172	1,067	2,300	2,305
Net (income) loss attributable to noncontrolling interests	0	0	0	0
Net income attributable to U.S. Bancorp	1,172	1,067	2,300	2,305
Average Balance Sheet
Loans	173,695	178,749	172,381	177,867
Other earning assets	9,590	6,671	9,164	6,349
Goodwill	4,824	4,651	4,825	4,633
Other intangible assets	1,007	962	1,033	998
Assets	203,201	205,169	201,196	203,168
Noninterest-bearing deposits	57,299	73,512	57,939	77,816
Interest-bearing deposits	216,293	195,333	212,068	197,372
Total deposits	273,592	268,845	270,007	275,188
Total U.S. Bancorp shareholders’ equity	21,481	22,359	21,619	21,949
Consumer and Business Banking
Condensed Income Statement
Net interest income (taxable-equivalent basis)	1,922	2,295	3,801	4,684
Noninterest income	413	431	836	831
Total net revenue	2,335	2,726	4,637	5,515
Noninterest expense	1,622	1,764	3,224	3,496
Income (loss) before provision and income taxes	713	962	1,413	2,019
Provision for credit losses	30	16	84	23
Income (loss) before income taxes	683	946	1,329	1,996
Income taxes and taxable-equivalent adjustment	171	237	333	500
Net income	512	709	996	1,496
Net (income) loss attributable to noncontrolling interests	0	0	0	0
Net income attributable to U.S. Bancorp	512	709	996	1,496
Average Balance Sheet
Loans	154,857	167,002	154,845	167,214
Other earning assets	2,278	2,512	2,078	2,346
Goodwill	4,326	4,530	4,326	4,512
Other intangible assets	4,734	5,393	4,714	5,492
Assets	168,634	184,804	168,854	185,032
Noninterest-bearing deposits	20,900	34,120	21,137	37,616
Interest-bearing deposits	202,967	180,239	201,131	177,227
Total deposits	223,867	214,359	222,268	214,843
Total U.S. Bancorp shareholders’ equity	14,553	16,386	14,699	16,476
Payment Services
Condensed Income Statement
Net interest income (taxable-equivalent basis)	673	623	1,375	1,270
Noninterest income	1,094	1,050	2,073	1,987
Total net revenue	1,767	1,673	3,448	3,257
Noninterest expense	983	941	1,981	1,889
Income (loss) before provision and income taxes	784	732	1,467	1,368
Provision for credit losses	388	314	747	534
Income (loss) before income taxes	396	418	720	834
Income taxes and taxable-equivalent adjustment	99	105	180	209
Net income	297	313	540	625
Net (income) loss attributable to noncontrolling interests	0	0	0	0
Net income attributable to U.S. Bancorp	297	313	540	625
Average Balance Sheet
Loans	40,832	37,913	40,318	37,426
Other earning assets	115	74	134	187
Goodwill	3,327	3,331	3,329	3,323
Other intangible assets	281	359	291	372
Assets	46,099	44,126	46,458	43,492
Noninterest-bearing deposits	2,706	3,179	2,749	3,181
Interest-bearing deposits	97	104	97	106
Total deposits	2,803	3,283	2,846	3,287
Total U.S. Bancorp shareholders’ equity	9,941	9,127	9,953	9,048
Rewards and rebate costs and certain partner payments	776	760	1,500	1,500
Revenue generated from certain contracts with customers	2,300	2,200	4,500	4,300
Treasury and Corporate Support
Condensed Income Statement
Net interest income (taxable-equivalent basis)	(449)	(363)	(919)	(694)
Noninterest income	177	174	362	325
Total net revenue	(272)	(189)	(557)	(369)
Noninterest expense	235	484	722	1,001
Income (loss) before provision and income taxes	(507)	(673)	(1,279)	(1,370)
Provision for credit losses	50	329	49	556
Income (loss) before income taxes	(557)	(1,002)	(1,328)	(1,926)
Income taxes and taxable-equivalent adjustment	(187)	(282)	(429)	(573)
Net income	(370)	(720)	(899)	(1,353)
Net (income) loss attributable to noncontrolling interests	(8)	(8)	(15)	(14)
Net income attributable to U.S. Bancorp	(378)	(728)	(914)	(1,367)
Average Balance Sheet
Loans	5,301	5,153	5,334	5,282
Other earning assets	222,224	215,765	218,259	214,073
Goodwill	0	0	0	0
Other intangible assets	9	10	10	23
Assets	247,570	238,913	243,199	237,559
Noninterest-bearing deposits	2,513	2,947	2,277	3,092
Interest-bearing deposits	11,134	7,831	11,087	7,348
Total deposits	13,647	10,778	13,364	10,440
Total U.S. Bancorp shareholders’ equity	$ 10,054	$ 5,950	$ 9,578	$ 5,775