SECURITIZATIONS AND VARIABLE INTEREST ENTITIES - Carrying Amounts and Classifications of Consolidated Assets (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Variable Interest Entity
Cash	$ 24,902	$ 27,515	$ 27,117
Trading account assets	340,875	331,945
Investments	513,878	512,822
Total loans, net of allowance	641,381	651,312
Increase in other assets	134,797	125,879
Total assets	2,380,904	2,291,413	$ 2,291,000
Unconsolidated VIEs
Variable Interest Entity
Cash	0	0
Trading account assets	1,800	1,400
Investments	8,900	8,800
Total loans, net of allowance	39,600	35,400
Increase in other assets	500	800
Total assets	$ 50,800	$ 46,400