Derivative Instruments - Derivatives Netting (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	$ 555,280	$ 630,361
Amounts netted on the Consolidated balance sheets	(505,108)	(568,713)
Net derivative receivables	50,172	61,648
Derivative receivables where an appropriate legal opinion has not been either sought or obtained	9,102	9,232
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	564,382	639,593
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	59,274	70,880
Collateral not nettable on the Consolidated balance sheets	(20,923)	(23,014)
Net amounts	38,351	47,866
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	551,200	624,756
Amounts netted on the Consolidated balance sheets	(517,374)	(586,372)
Net derivative payables	33,826	38,384
Derivative payables where an appropriate legal opinion has not been either sought or obtained	10,885	12,757
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	562,085	637,513
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	44,711	51,141
Collateral not nettable on the Consolidated balance sheets	(4,437)	(3,318)
Net amounts	40,274	47,823
Net cash collateral receivables	47,800	51,500
Net cash collateral payables	60,100	69,200
Interest rate contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	283,442	298,281
Amounts netted on the Consolidated balance sheets	(260,511)	(271,996)
Net derivative receivables	22,931	26,285
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	285,539	300,415
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	25,028	28,419
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	272,589	287,852
Amounts netted on the Consolidated balance sheets	(261,428)	(274,321)
Net derivative payables	11,161	13,531
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	274,728	290,291
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	13,300	15,970
Interest rate contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	191,898	203,922
Amounts netted on the Consolidated balance sheets	(169,448)	(178,261)
Net derivative receivables	22,450	25,661
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	177,549	190,108
Amounts netted on the Consolidated balance sheets	(166,800)	(176,890)
Net derivative payables	10,749	13,218
Interest rate contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	90,955	93,800
Amounts netted on the Consolidated balance sheets	(90,616)	(93,424)
Net derivative receivables	339	376
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	94,500	97,417
Amounts netted on the Consolidated balance sheets	(94,182)	(97,126)
Net derivative payables	318	291
Interest rate contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	589	559
Amounts netted on the Consolidated balance sheets	(447)	(311)
Net derivative receivables	142	248
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	540	327
Amounts netted on the Consolidated balance sheets	(446)	(305)
Net derivative payables	94	22
Net credit derivatives
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	11,949	10,220
Amounts netted on the Consolidated balance sheets	(11,054)	(9,239)
Net derivative receivables	895	981
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	12,047	10,329
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	993	1,090
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	12,177	9,728
Amounts netted on the Consolidated balance sheets	(11,576)	(9,217)
Net derivative payables	601	511
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	12,428	9,971
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	852	754
Net credit derivatives | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	8,564	8,474
Amounts netted on the Consolidated balance sheets	(7,792)	(7,535)
Net derivative receivables	772	939
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	9,096	8,054
Amounts netted on the Consolidated balance sheets	(8,550)	(7,572)
Net derivative payables	546	482
Net credit derivatives | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	3,385	1,746
Amounts netted on the Consolidated balance sheets	(3,262)	(1,704)
Net derivative receivables	123	42
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	3,081	1,674
Amounts netted on the Consolidated balance sheets	(3,026)	(1,645)
Net derivative payables	55	29
Foreign exchange contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	183,748	239,417
Amounts netted on the Consolidated balance sheets	(166,455)	(218,214)
Net derivative receivables	17,293	21,203
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	185,680	241,579
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	19,225	23,365
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	185,542	247,965
Amounts netted on the Consolidated balance sheets	(174,408)	(232,665)
Net derivative payables	11,134	15,300
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	187,622	251,521
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	13,214	18,856
Foreign exchange contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	183,060	237,941
Amounts netted on the Consolidated balance sheets	(165,794)	(216,796)
Net derivative receivables	17,266	21,145
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	184,746	246,457
Amounts netted on the Consolidated balance sheets	(173,744)	(231,248)
Net derivative payables	11,002	15,209
Foreign exchange contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	662	1,461
Amounts netted on the Consolidated balance sheets	(658)	(1,417)
Net derivative receivables	4	44
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	765	1,488
Amounts netted on the Consolidated balance sheets	(664)	(1,417)
Net derivative payables	101	71
Foreign exchange contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	26	15
Amounts netted on the Consolidated balance sheets	(3)	(1)
Net derivative receivables	23	14
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	31	20
Amounts netted on the Consolidated balance sheets	0	0
Net derivative payables	31	20
Equity contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	58,312	58,790
Amounts netted on the Consolidated balance sheets	(53,729)	(52,774)
Net derivative receivables	4,583	6,016
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	61,457	61,913
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	7,728	9,139
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	62,504	58,124
Amounts netted on the Consolidated balance sheets	(56,697)	(53,657)
Net derivative payables	5,807	4,467
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	66,545	62,461
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	9,848	8,804
Equity contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	26,232	30,323
Amounts netted on the Consolidated balance sheets	(22,553)	(25,665)
Net derivative receivables	3,679	4,658
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	29,147	29,833
Amounts netted on the Consolidated balance sheets	(25,525)	(26,554)
Net derivative payables	3,622	3,279
Equity contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	32,080	28,467
Amounts netted on the Consolidated balance sheets	(31,176)	(27,109)
Net derivative receivables	904	1,358
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	33,357	28,291
Amounts netted on the Consolidated balance sheets	(31,172)	(27,103)
Net derivative payables	2,185	1,188
Commodity contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	17,829	23,653
Amounts netted on the Consolidated balance sheets	(13,359)	(16,490)
Net derivative receivables	4,470	7,163
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	19,659	25,357
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	6,300	8,867
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	18,388	21,087
Amounts netted on the Consolidated balance sheets	(13,265)	(16,512)
Net derivative payables	5,123	4,575
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	20,762	23,269
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	7,497	6,757
Commodity contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	11,145	14,430
Amounts netted on the Consolidated balance sheets	(6,700)	(7,633)
Net derivative receivables	4,445	6,797
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	11,189	11,954
Amounts netted on the Consolidated balance sheets	(6,597)	(7,642)
Net derivative payables	4,592	4,312
Commodity contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	107	120
Amounts netted on the Consolidated balance sheets	(106)	(112)
Net derivative receivables	1	8
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	106	112
Amounts netted on the Consolidated balance sheets	(106)	(112)
Net derivative payables	0	0
Commodity contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	6,577	9,103
Amounts netted on the Consolidated balance sheets	(6,553)	(8,745)
Net derivative receivables	24	358
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	7,093	9,021
Amounts netted on the Consolidated balance sheets	(6,562)	(8,758)
Net derivative payables	$ 531	$ 263