Derivative Instruments - Derivatives Netting (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	$ 638,702	$ 528,471
Amounts netted on the Consolidated balance sheets	(572,189)	(488,206)
Net derivative receivables	66,513	40,265
Derivative receivables where an appropriate legal opinion has not been either sought or obtained	14,804	16,816
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	653,506	545,287
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	81,317	57,081
Collateral not nettable on the Consolidated balance sheets	(19,801)	(10,102)
Net amounts	61,516	46,979
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	611,647	518,487
Amounts netted on the Consolidated balance sheets	(575,112)	(484,928)
Net derivative payables	36,535	33,559
Derivative payables where an appropriate legal opinion has not been either sought or obtained	15,882	16,557
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	627,529	535,044
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	52,417	50,116
Collateral not nettable on the Consolidated balance sheets	(2,921)	(5,872)
Net amounts	49,496	44,244
Net cash collateral receivables	64,600	67,600
Net cash collateral payables	67,600	64,300
Interest rate contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	250,283	266,595
Amounts netted on the Consolidated balance sheets	(231,214)	(248,611)
Net derivative receivables	19,069	17,984
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	253,144	270,585
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	21,930	21,974
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	234,973	239,563
Amounts netted on the Consolidated balance sheets	(225,687)	(232,537)
Net derivative payables	9,286	7,026
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	237,212	240,731
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	11,525	8,194
Interest rate contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	196,673	251,953
Amounts netted on the Consolidated balance sheets	(178,520)	(234,283)
Net derivative receivables	18,153	17,670
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	179,008	223,576
Amounts netted on the Consolidated balance sheets	(169,819)	(216,757)
Net derivative payables	9,189	6,819
Interest rate contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	52,486	14,144
Amounts netted on the Consolidated balance sheets	(51,603)	(13,839)
Net derivative receivables	883	305
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	55,401	15,695
Amounts netted on the Consolidated balance sheets	(55,313)	(15,492)
Net derivative payables	88	203
Interest rate contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	1,124	498
Amounts netted on the Consolidated balance sheets	(1,091)	(489)
Net derivative receivables	33	9
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	564	292
Amounts netted on the Consolidated balance sheets	(555)	(288)
Net derivative payables	9	4
Net credit derivatives
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	13,451	9,706
Amounts netted on the Consolidated balance sheets	(11,971)	(8,808)
Net derivative receivables	1,480	898
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	13,578	9,839
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	1,607	1,031
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	11,068	10,700
Amounts netted on the Consolidated balance sheets	(10,433)	(10,032)
Net derivative payables	635	668
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	11,323	10,912
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	890	880
Net credit derivatives | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	11,731	8,035
Amounts netted on the Consolidated balance sheets	(10,326)	(7,177)
Net derivative receivables	1,405	858
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	9,320	9,021
Amounts netted on the Consolidated balance sheets	(8,781)	(8,421)
Net derivative payables	539	600
Net credit derivatives | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	1,720	1,671
Amounts netted on the Consolidated balance sheets	(1,645)	(1,631)
Net derivative receivables	75	40
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	1,748	1,679
Amounts netted on the Consolidated balance sheets	(1,652)	(1,611)
Net derivative payables	96	68
Foreign exchange contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	257,317	166,980
Amounts netted on the Consolidated balance sheets	(233,688)	(156,954)
Net derivative receivables	23,629	10,026
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	261,854	169,579
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	28,166	12,625
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	254,168	172,323
Amounts netted on the Consolidated balance sheets	(240,045)	(161,649)
Net derivative payables	14,123	10,674
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	259,286	175,746
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	19,241	14,097
Foreign exchange contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	256,164	166,185
Amounts netted on the Consolidated balance sheets	(232,544)	(156,251)
Net derivative receivables	23,620	9,934
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	252,909	171,610
Amounts netted on the Consolidated balance sheets	(238,853)	(160,946)
Net derivative payables	14,056	10,664
Foreign exchange contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	1,144	789
Amounts netted on the Consolidated balance sheets	(1,142)	(703)
Net derivative receivables	2	86
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	1,245	706
Amounts netted on the Consolidated balance sheets	(1,190)	(703)
Net derivative payables	55	3
Foreign exchange contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	9	6
Amounts netted on the Consolidated balance sheets	(2)	0
Net derivative receivables	7	6
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	14	7
Amounts netted on the Consolidated balance sheets	(2)	0
Net derivative payables	12	7
Equity contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	72,031	61,799
Amounts netted on the Consolidated balance sheets	(66,004)	(58,650)
Net derivative receivables	6,027	3,149
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	76,181	68,631
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	10,177	9,981
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	71,748	72,000
Amounts netted on the Consolidated balance sheets	(66,555)	(62,494)
Net derivative payables	5,193	9,506
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	76,719	79,727
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	10,164	17,233
Equity contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	37,384	25,704
Amounts netted on the Consolidated balance sheets	(33,060)	(23,977)
Net derivative receivables	4,324	1,727
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	36,948	31,379
Amounts netted on the Consolidated balance sheets	(33,598)	(27,830)
Net derivative payables	3,350	3,549
Equity contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	34,647	36,095
Amounts netted on the Consolidated balance sheets	(32,944)	(34,673)
Net derivative receivables	1,703	1,422
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	34,800	40,621
Amounts netted on the Consolidated balance sheets	(32,957)	(34,664)
Net derivative payables	1,843	5,957
Commodity contracts
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	45,620	23,391
Amounts netted on the Consolidated balance sheets	(29,312)	(15,183)
Net derivative receivables	16,308	8,208
Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables	48,749	26,653
Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables	19,437	11,470
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	39,690	23,901
Amounts netted on the Consolidated balance sheets	(32,392)	(18,216)
Net derivative payables	7,298	5,685
Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables	42,989	27,928
Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables	10,597	9,712
Commodity contracts | Over-the-counter (“OTC”)
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	28,208	15,063
Amounts netted on the Consolidated balance sheets	(11,932)	(6,868)
Net derivative receivables	16,276	8,195
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	20,702	14,874
Amounts netted on the Consolidated balance sheets	(14,470)	(9,667)
Net derivative payables	6,232	5,207
Commodity contracts | OTC–cleared
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	121	49
Amounts netted on the Consolidated balance sheets	(121)	(49)
Net derivative receivables	0	0
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	140	73
Amounts netted on the Consolidated balance sheets	(140)	(73)
Net derivative payables	0	0
Commodity contracts | Exchange-traded
Gross and Net Derivative Receivables by Contract and Settlement Type:
Gross derivative receivables	17,291	8,279
Amounts netted on the Consolidated balance sheets	(17,259)	(8,266)
Net derivative receivables	32	13
Gross and Net Derivative Payables by Contract and Settlement Type:
Gross derivative payables	18,848	8,954
Amounts netted on the Consolidated balance sheets	(17,782)	(8,476)
Net derivative payables	$ 1,066	$ 478