Quarterly report [Sections 13 or 15(d)]

Business Segment Information - Results of Business Segments and All Other (Details)

Business Segment Information - Results of Business Segments and All Other (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Segment Reporting [Line Items]
Net interest income	$ 16,160	$ 14,815	$ 32,067	$ 29,403
Noninterest income	15,561	12,773	30,088	26,577
Total revenue, net of interest expense	31,721	27,588	62,155	55,980
Provision for credit losses	1,366	1,592	2,703	3,072
Noninterest expense
Compensation and benefits	10,987	10,332	22,321	21,221
Other noninterest expense	7,640	6,851	14,837	13,732
Total noninterest expense	18,627	17,183	37,158	34,953
Income before income taxes	11,728	8,813	22,294	17,955
Income tax expense	2,654	1,643	4,636	3,425
Net income	9,074	7,170	17,658	14,530
Assets	3,499,191	3,440,798	3,499,191	3,440,798	$ 3,411,738
Additional net interest income and income tax expense, related to tax-exempt securities	163	145	325	290
Operating Segments \| Consumer Banking
Segment Reporting [Line Items]
Net interest income	9,206	8,726	18,199	17,231
Noninterest income	2,130	2,087	4,186	4,075
Total revenue, net of interest expense	11,336	10,813	22,385	21,306
Provision for credit losses	1,160	1,282	2,292	2,574
Noninterest expense
Compensation and benefits	1,553	1,514	3,141	3,084
Other noninterest expense	4,248	4,053	8,497	8,309
Total noninterest expense	5,801	5,567	11,638	11,393
Income before income taxes	4,375	3,964	8,455	7,339
Income tax expense	1,094	991	2,114	1,835
Net income	3,281	2,973	6,341	5,504
Assets	1,039,051	1,037,407	1,039,051	1,037,407
Operating Segments \| Global Wealth & Investment Management
Segment Reporting [Line Items]
Net interest income	1,888	1,762	3,750	3,527
Noninterest income	4,983	4,175	9,833	8,426
Total revenue, net of interest expense	6,871	5,937	13,583	11,953
Provision for credit losses	11	20	13	34
Noninterest expense
Compensation and benefits	3,269	2,966	6,530	5,997
Other noninterest expense	1,707	1,627	3,384	3,255
Total noninterest expense	4,976	4,593	9,914	9,252
Income before income taxes	1,884	1,324	3,656	2,667
Income tax expense	471	331	914	667
Net income	1,413	993	2,742	2,000
Assets	327,667	320,820	327,667	320,820
Operating Segments \| Global Banking
Segment Reporting [Line Items]
Net interest income	3,198	3,081	6,428	6,232
Noninterest income	3,038	2,608	6,095	5,449
Total revenue, net of interest expense	6,236	5,689	12,523	11,681
Provision for credit losses	215	277	400	431
Noninterest expense
Compensation and benefits	1,174	1,140	2,385	2,380
Other noninterest expense	2,025	1,930	4,037	3,874
Total noninterest expense	3,199	3,070	6,422	6,254
Income before income taxes	2,822	2,342	5,701	4,996
Income tax expense	776	644	1,568	1,374
Net income	2,046	1,698	4,133	3,622
Assets	761,395	739,214	761,395	739,214
Operating Segments \| Global Markets
Segment Reporting [Line Items]
Net interest income	1,911	1,267	3,772	2,456
Noninterest income	6,111	4,715	11,359	10,111
Total revenue, net of interest expense	8,022	5,982	15,131	12,567
Provision for credit losses	(11)	22	16	50
Noninterest expense
Compensation and benefits	1,062	944	2,220	1,996
Other noninterest expense	3,422	2,862	6,634	5,621
Total noninterest expense	4,484	3,806	8,854	7,617
Income before income taxes	3,549	2,154	6,261	4,900
Income tax expense	923	625	1,628	1,421
Net income	2,626	1,529	4,633	3,479
Assets	1,106,999	1,017,594	1,106,999	1,017,594
All Other
Segment Reporting [Line Items]
Net interest income	(43)	(21)	(82)	(43)
Noninterest income	(701)	(812)	(1,385)	(1,484)
Total revenue, net of interest expense	(744)	(833)	(1,467)	(1,527)
Provision for credit losses	(9)	(9)	(18)	(17)
Noninterest expense
Compensation and benefits	0	0	0	0
Other noninterest expense	167	147	330	437
Total noninterest expense	167	147	330	437
Income before income taxes	(902)	(971)	(1,779)	(1,947)
Income tax expense	(610)	(948)	(1,588)	(1,872)
Net income	(292)	(23)	(191)	(75)
Assets	$ 264,079	$ 325,763	$ 264,079	$ 325,763