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		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Variable Interest Entity [Line Items]
Amortization of affordable housing tax credit investments	$ 63	$ 58	$ 197	$ 176
Tax credits from affordable housing tax credit investments	(66)	(58)	(201)	(173)
Other tax benefits from affordable housing tax credit investments	(15)	(8)	(38)	(29)
Net income tax benefit from affordable housing tax credit investments	$ (18)	$ (8)	$ (42)	$ (26)