DEPOSITS (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Deposit Liability [Line Items]
Non-interest-bearing deposits in U.S. offices	$ 117,607	$ 112,089
Interest-bearing deposits in U.S. offices (including $1,159 and $1,309 as of June 30, 2024 and December 31, 2023, respectively, at fair value)	546,772	576,784
Total deposits in U.S. offices	664,379	688,873
Non-interest-bearing deposits in offices outside the U.S.	83,150	88,988
Interest-bearing deposits in offices outside the U.S. (including $2,241 and $1,131 as of June 30, 2024 and December 31, 2023, respectively, at fair value)	530,608	530,820
Total deposits in offices outside the U.S.	613,758	619,808
Total deposits	1,278,137	1,308,681
Fair value
Deposit Liability [Line Items]
Interest-bearing deposits in U.S. offices (including $1,159 and $1,309 as of June 30, 2024 and December 31, 2023, respectively, at fair value)	1,159	1,309
Interest-bearing deposits in offices outside the U.S. (including $2,241 and $1,131 as of June 30, 2024 and December 31, 2023, respectively, at fair value)	2,241	1,131
Total deposits	$ 1,274,600	$ 1,305,900