Derivative Instruments - Derivatives Netting (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	$ 658,989	$ 599,310
Amounts netted on the Consolidated balance sheets	(597,251)	(548,605)
Net derivative receivables	61,738	50,705
Derivative receivables where an appropriate legal opinion has not been either sought or obtained	9,846	7,072
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	668,835	606,382
Total derivative receivables	71,584	57,777
Collateral not nettable on the Consolidated balance sheets	(32,366)	(28,891)
Net amounts	39,218	28,886
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	642,327	589,018
Amounts netted on the Consolidated balance sheets	(600,042)	(550,409)
Net derivative payables	42,285	38,609
Derivative payables where an appropriate legal opinion has not been either sought or obtained	9,005	7,720
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	651,332	596,738
Total derivative payables	51,290	46,329
Collateral not nettable on the Consolidated balance sheets	(18,473)	(18,478)
Net amounts	32,817	27,851
Net cash collateral receivables	58,700	54,700
Net cash collateral payables	61,500	56,500
Interest rate contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	285,110	280,805
Amounts netted on the Consolidated balance sheets	(261,318)	(256,483)
Net derivative receivables	23,792	24,322
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	287,095	281,884
Total derivative receivables	25,777	25,401
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	261,973	256,851
Amounts netted on the Consolidated balance sheets	(254,756)	(250,122)
Net derivative payables	7,217	6,729
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	263,346	257,583
Total derivative payables	8,590	7,461
Interest rate contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	162,822	162,300
Amounts netted on the Consolidated balance sheets	(139,552)	(138,107)
Net derivative receivables	23,270	24,193
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	135,569	135,045
Amounts netted on the Consolidated balance sheets	(128,745)	(128,464)
Net derivative payables	6,824	6,581
Interest rate contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	121,854	118,377
Amounts netted on the Consolidated balance sheets	(121,351)	(118,303)
Net derivative receivables	503	74
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	125,836	121,702
Amounts netted on the Consolidated balance sheets	(125,560)	(121,557)
Net derivative payables	276	145
Interest rate contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	434	128
Amounts netted on the Consolidated balance sheets	(415)	(73)
Net derivative receivables	19	55
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	568	104
Amounts netted on the Consolidated balance sheets	(451)	(101)
Net derivative payables	117	3
Net credit derivatives
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	15,454	12,956
Amounts netted on the Consolidated balance sheets	(13,941)	(12,545)
Net derivative receivables	1,513	411
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	15,529	13,024
Total derivative receivables	1,588	479
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	18,325	17,294
Amounts netted on the Consolidated balance sheets	(16,755)	(15,612)
Net derivative payables	1,570	1,682
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	18,733	17,628
Total derivative payables	1,978	2,016
Net credit derivatives | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	12,189	9,723
Amounts netted on the Consolidated balance sheets	(10,844)	(9,433)
Net derivative receivables	1,345	290
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	15,789	14,848
Amounts netted on the Consolidated balance sheets	(14,251)	(13,196)
Net derivative payables	1,538	1,652
Net credit derivatives | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	3,265	3,233
Amounts netted on the Consolidated balance sheets	(3,097)	(3,112)
Net derivative receivables	168	121
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	2,536	2,446
Amounts netted on the Consolidated balance sheets	(2,504)	(2,416)
Net derivative payables	32	30
Foreign exchange contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	210,511	181,045
Amounts netted on the Consolidated balance sheets	(189,883)	(163,881)
Net derivative receivables	20,628	17,164
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	213,833	183,236
Total derivative receivables	23,950	19,355
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	205,071	176,391
Amounts netted on the Consolidated balance sheets	(190,941)	(163,308)
Net derivative payables	14,130	13,083
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	206,743	178,141
Total derivative payables	15,802	14,833
Foreign exchange contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	207,360	180,120
Amounts netted on the Consolidated balance sheets	(186,979)	(163,029)
Net derivative receivables	20,381	17,091
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	202,066	175,485
Amounts netted on the Consolidated balance sheets	(188,038)	(162,455)
Net derivative payables	14,028	13,030
Foreign exchange contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	3,135	904
Amounts netted on the Consolidated balance sheets	(2,892)	(849)
Net derivative receivables	243	55
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	2,992	897
Amounts netted on the Consolidated balance sheets	(2,893)	(850)
Net derivative payables	99	47
Foreign exchange contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	16	21
Amounts netted on the Consolidated balance sheets	(12)	(3)
Net derivative receivables	4	18
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	13	9
Amounts netted on the Consolidated balance sheets	(10)	(3)
Net derivative payables	3	6
Equity contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	110,507	96,586
Amounts netted on the Consolidated balance sheets	(102,952)	(91,856)
Net derivative receivables	7,555	4,730
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	112,357	97,723
Total derivative receivables	9,405	5,867
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	124,099	114,893
Amounts netted on the Consolidated balance sheets	(110,324)	(102,211)
Net derivative payables	13,775	12,682
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	126,691	117,017
Total derivative payables	16,367	14,806
Equity contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	50,477	33,418
Amounts netted on the Consolidated balance sheets	(46,041)	(31,170)
Net derivative receivables	4,436	2,248
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	66,477	53,530
Amounts netted on the Consolidated balance sheets	(53,413)	(41,552)
Net derivative payables	13,064	11,978
Equity contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	60,030	63,168
Amounts netted on the Consolidated balance sheets	(56,911)	(60,686)
Net derivative receivables	3,119	2,482
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	57,622	61,363
Amounts netted on the Consolidated balance sheets	(56,911)	(60,659)
Net derivative payables	711	704
Commodity contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	37,407	27,918
Amounts netted on the Consolidated balance sheets	(29,157)	(23,840)
Net derivative receivables	8,250	4,078
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	40,021	30,515
Total derivative receivables	10,864	6,675
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	32,859	23,589
Amounts netted on the Consolidated balance sheets	(27,266)	(19,156)
Net derivative payables	5,593	4,433
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	35,819	26,369
Total derivative payables	8,553	7,213
Commodity contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	28,221	18,244
Amounts netted on the Consolidated balance sheets	(20,205)	(14,469)
Net derivative receivables	8,016	3,775
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	23,214	14,176
Amounts netted on the Consolidated balance sheets	(18,347)	(9,786)
Net derivative payables	4,867	4,390
Commodity contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	64	109
Amounts netted on the Consolidated balance sheets	(49)	(79)
Net derivative receivables	15	30
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	49	79
Amounts netted on the Consolidated balance sheets	(49)	(79)
Net derivative payables	0	0
Commodity contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	9,122	9,565
Amounts netted on the Consolidated balance sheets	(8,903)	(9,292)
Net derivative receivables	219	273
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	9,596	9,334
Amounts netted on the Consolidated balance sheets	(8,870)	(9,291)
Net derivative payables	$ 726	$ 43