VARIABLE INTEREST ENTITIES - Schedule of Affordable Housing Tax Credit Investments (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Variable Interest Entity
Tax credits included in income tax expense	$ 60	$ 51	$ 121	$ 102
Other tax benefits included in income tax expense	16	13	31	25
Total tax benefits included in income tax expense	76	64	152	127
Less: Amortization included in income tax expense	65	53	129	106
Net benefit from affordable housing tax credit investments included in income tax expense	$ 11	$ 11	$ 23	$ 21