SECURITIZATIONS AND VARIABLE INTEREST ENTITIES - Carrying Amounts and Classifications of Consolidated Assets (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Variable Interest Entity
Cash	$ 26,224	$ 30,577	$ 27,768
Trading account assets	383,906	334,114
Investments	512,578	526,582
Increase in other assets	103,522	103,743
Total assets	2,455,113	2,416,676
Unconsolidated VIEs
Variable Interest Entity
Cash	0	0
Trading account assets	1,600	1,600
Investments	8,800	8,600
Total loans, net of allowance	44,400	44,200
Increase in other assets	600	600
Total assets	$ 55,400	$ 55,000