Derivative Instruments - Impact on Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Gross derivative receivables	$ 639,593	$ 545,287
Net derivative receivables	70,880	57,081
Gross derivative payables	637,513	535,044
Net derivative payables	51,141	50,116
Interest rate
Derivatives, Fair Value [Line Items]
Gross derivative receivables	300,415	270,585
Net derivative receivables	28,419	21,974
Gross derivative payables	290,291	240,731
Net derivative payables	15,970	8,194
Credit
Derivatives, Fair Value [Line Items]
Gross derivative receivables	10,329	9,839
Net derivative receivables	1,090	1,031
Gross derivative payables	9,971	10,912
Net derivative payables	754	880
Foreign exchange
Derivatives, Fair Value [Line Items]
Gross derivative receivables	241,579	169,579
Net derivative receivables	23,365	12,625
Gross derivative payables	251,521	175,746
Net derivative payables	18,856	14,097
Equity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	61,913	68,631
Net derivative receivables	9,139	9,981
Gross derivative payables	62,461	79,727
Net derivative payables	8,804	17,233
Commodity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	25,357	26,653
Net derivative receivables	8,867	11,470
Gross derivative payables	23,269	27,928
Net derivative payables	6,757	9,712
Not designated as hedges
Derivatives, Fair Value [Line Items]
Gross derivative receivables	636,251	539,451
Gross derivative payables	632,392	526,829
Not designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Gross derivative receivables	300,411	270,562
Gross derivative payables	290,291	240,731
Not designated as hedges | Credit
Derivatives, Fair Value [Line Items]
Gross derivative receivables	10,329	9,839
Gross derivative payables	9,971	10,912
Not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Gross derivative receivables	239,946	169,186
Gross derivative payables	248,911	174,622
Not designated as hedges | Equity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	61,913	68,631
Gross derivative payables	62,461	79,727
Not designated as hedges | Commodity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	23,652	21,233
Gross derivative payables	20,758	20,837
Designated as hedges
Derivatives, Fair Value [Line Items]
Gross derivative receivables	3,342	5,836
Gross derivative payables	5,121	8,215
Designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Gross derivative receivables	4	23
Gross derivative payables	0	0
Designated as hedges | Credit
Derivatives, Fair Value [Line Items]
Gross derivative receivables	0	0
Gross derivative payables	0	0
Designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Gross derivative receivables	1,633	393
Gross derivative payables	2,610	1,124
Designated as hedges | Equity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	0	0
Gross derivative payables	0	0
Designated as hedges | Commodity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	1,705	5,420
Gross derivative payables	$ 2,511	$ 7,091