PRINCIPAL TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Principal transactions revenue
Principal transactions revenue	$ 3,274	$ 3,939
Interest rate risks
Principal transactions revenue
Principal transactions revenue	937	1,395
Foreign exchange risks
Principal transactions revenue
Principal transactions revenue	1,252	1,479
Equity risks
Principal transactions revenue
Principal transactions revenue	615	634
Commodity and other risks
Principal transactions revenue
Principal transactions revenue	303	498
Credit products and risks
Principal transactions revenue
Principal transactions revenue	$ 167	$ (67)