Derivative Instruments - Impact on Balance Sheet (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Gross derivative receivables	$ 564,382	$ 639,593
Net derivative receivables	59,274	70,880
Gross derivative payables	562,085	637,513
Net derivative payables	44,711	51,141
Interest rate
Derivatives, Fair Value [Line Items]
Gross derivative receivables	285,539	300,415
Net derivative receivables	25,028	28,419
Gross derivative payables	274,728	290,291
Net derivative payables	13,300	15,970
Credit
Derivatives, Fair Value [Line Items]
Gross derivative receivables	12,047	10,329
Net derivative receivables	993	1,090
Gross derivative payables	12,428	9,971
Net derivative payables	852	754
Foreign exchange
Derivatives, Fair Value [Line Items]
Gross derivative receivables	185,680	241,579
Net derivative receivables	19,225	23,365
Gross derivative payables	187,622	251,521
Net derivative payables	13,214	18,856
Equity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	61,457	61,913
Net derivative receivables	7,728	9,139
Gross derivative payables	66,545	62,461
Net derivative payables	9,848	8,804
Commodity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	19,659	25,357
Net derivative receivables	6,300	8,867
Gross derivative payables	20,762	23,269
Net derivative payables	7,497	6,757
Not designated as hedges
Derivatives, Fair Value [Line Items]
Gross derivative receivables	562,601	636,251
Gross derivative payables	559,458	632,392
Not designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Gross derivative receivables	285,532	300,411
Gross derivative payables	274,728	290,291
Not designated as hedges | Credit
Derivatives, Fair Value [Line Items]
Gross derivative receivables	12,047	10,329
Gross derivative payables	12,428	9,971
Not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Gross derivative receivables	184,941	239,946
Gross derivative payables	186,365	248,911
Not designated as hedges | Equity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	61,457	61,913
Gross derivative payables	66,545	62,461
Not designated as hedges | Commodity
Derivatives, Fair Value [Line Items]
Gross derivative receivables	18,624	23,652
Gross derivative payables	19,392	20,758
Designated as hedges
Derivatives, Fair Value [Line Items]
Gross derivative receivables	1,781	3,342
Gross derivative payables	2,627	5,121
Designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Gross derivative receivables	7	4
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	739	1,633
Gross derivative payables	1,257	2,610
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	1,035	1,705
Gross derivative payables	$ 1,370	$ 2,511