DEPOSITS (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Deposit Liability [Line Items]
Non-interest-bearing deposits in U.S. offices	$ 123,969	$ 122,655
Interest-bearing deposits in U.S. offices (including $972 and $903 as of March 31, 2023 and December 31, 2022, respectively, at fair value)	587,477	607,470
Non-interest-bearing deposits in offices outside the U.S.	90,404	95,182
Interest-bearing deposits in offices outside the U.S. (including $1,971 and $972 as of March 31, 2023 and December 31, 2022, respectively, at fair value)	528,609	540,647
Total deposits	1,330,459	1,365,954
Fair value
Deposit Liability [Line Items]
Interest-bearing deposits in U.S. offices (including $972 and $903 as of March 31, 2023 and December 31, 2022, respectively, at fair value)	972	903
Interest-bearing deposits in offices outside the U.S. (including $1,971 and $972 as of March 31, 2023 and December 31, 2022, respectively, at fair value)	1,971	972
Total deposits	$ 1,327,600	$ 1,345,400