VARIABLE INTEREST ENTITIES - Schedule of Affordable Housing Tax Credit Investments (Details) - LIHTC Investments - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Variable Interest Entity
Tax credits included in income tax expense	$ 61	$ 51
Other tax benefits included in income tax expense	15	12
Total tax benefits included in income tax expense	76	63
Less: Amortization included in income tax expense	64	53
Net benefit from affordable housing tax credit investments included in income tax expense	$ 12	$ 10