PRINCIPAL TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Principal transactions revenue
Principal transactions revenue	$ 4,590	$ 3,913
Interest rate risks
Principal transactions revenue
Principal transactions revenue	1,470	1,433
Foreign exchange risks
Principal transactions revenue
Principal transactions revenue	1,547	962
Equity risks
Principal transactions revenue
Principal transactions revenue	932	845
Commodity and other risks
Principal transactions revenue
Principal transactions revenue	451	200
Credit products and risks
Principal transactions revenue
Principal transactions revenue	$ 190	$ 473