Variable Interest Entities and Securitization Activities - Assets and Liabilities by Balance Sheet Caption (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Assets
Cash and cash equivalents	$ 131,286	$ 127,725
Trading assets at fair value	278,882	294,869
Investment securities	157,712	182,712
Securities purchased under agreements to resell	120,735	119,999
Customer and other receivables	82,759	96,018
Intangible assets	8,046	8,360
Other assets	24,874	23,491
Total assets	1,173,776	1,188,140
Liabilities
Other secured financings	7,237	10,041
Other liabilities and accrued expenses	26,612	29,300
Total liabilities	1,071,114	1,081,542
Noncontrolling interests	1,066	1,157
Variable Interest Entity, Primary Beneficiary
Assets
Cash and cash equivalents	337	341
Trading assets at fair value	1,885	1,965
Investment securities	32	37
Securities purchased under agreements to resell	200	200
Customer and other receivables	25	31
Intangible assets	79	85
Other assets	242	253
Total assets	2,800	2,912
Liabilities
Other secured financings	929	767
Other liabilities and accrued expenses	158	261
Total liabilities	1,087	1,028
Noncontrolling interests	$ 117	$ 115