VARIABLE INTEREST ENTITIES - Schedule of Tax Credit Investments Recognized in Income Tax Expense (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Variable Interest Entity [Line Items]
Amortization of affordable housing tax credit investments	$ 59	$ 18
Tax credits from affordable housing tax credit investments	(57)	(15)
Other tax benefits from affordable housing tax credit investments	(11)	0
Net income tax (benefit) expense from affordable housing tax credit investments	$ (9)	$ 3