DEPOSITS (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Deposit Liability [Line Items]
Non-interest-bearing deposits in U.S. offices	$ 109,844	$ 122,655
Interest-bearing deposits in U.S. offices (including $998 and $903 as of June 30, 2023 and December 31, 2022, respectively, at fair value)	590,700	607,470
Non-interest-bearing deposits in offices outside the U.S.	91,899	95,182
Interest-bearing deposits in offices outside the U.S. (including $1,600 and $972 as of June 30, 2023 and December 31, 2022, respectively, at fair value)	527,424	540,647
Total deposits	1,319,867	1,365,954
Fair value
Deposit Liability [Line Items]
Interest-bearing deposits in U.S. offices (including $998 and $903 as of June 30, 2023 and December 31, 2022, respectively, at fair value)	998	903
Interest-bearing deposits in offices outside the U.S. (including $1,600 and $972 as of June 30, 2023 and December 31, 2022, respectively, at fair value)	1,600	972
Total deposits	$ 1,316,300	$ 1,345,400