DEPOSITS (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deposit Liability [Line Items]
Non-interest-bearing deposits in U.S. offices	$ 112,089	$ 122,655
Interest-bearing deposits in U.S. offices (including $1,309 and $903 as of December 31, 2023 and 2022, respectively, at fair value)	576,784	607,470
Total deposits in U.S. offices	688,873	730,125
Non-interest-bearing deposits in offices outside the U.S.	88,988	95,182
Interest-bearing deposits in offices outside the U.S. (including $1,131 and $972 as of December 31, 2023 and 2022, respectively, at fair value)	530,820	540,647
Total deposits in offices outside the U.S.	619,808	635,829
Deposits (including $2,440 and $1,875 as of December 31, 2023 and 2022, respectively, at fair value)	1,308,681	1,365,954
Time deposits that met or exceeded insured limit	223,444	214,341
U.S.
Deposit Liability [Line Items]
Time deposits that met or exceeded insured limit	67,471	63,420
Offices outside the U.S.
Deposit Liability [Line Items]
Time deposits that met or exceeded insured limit	155,973	150,921
Fair value
Deposit Liability [Line Items]
Interest-bearing deposits in U.S. offices (including $1,309 and $903 as of December 31, 2023 and 2022, respectively, at fair value)	1,309	903
Interest-bearing deposits in offices outside the U.S. (including $1,131 and $972 as of December 31, 2023 and 2022, respectively, at fair value)	1,131	972
Deposits (including $2,440 and $1,875 as of December 31, 2023 and 2022, respectively, at fair value)	$ 1,305,900	$ 1,345,400