FAIR VALUE - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Fair Value, Recurring - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Other Derivative Liabilities — Non-Qualifying
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 1	$ 0
Purchases	0	0
Changes in fair value included in earnings	0	0
Changes in fair value included in comprehensive income	0	0
Transfers in	0	1
Maturity and settlements	0	0
Ending balance	1	1
Corporate Bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	157	174
Purchases	0	0
Changes in fair value included in earnings	(1)	0
Changes in fair value included in comprehensive income	12	(8)
Transfers in	0	0
Maturity and settlements	0	(9)
Ending balance	168	157
Other Derivative Assets — Non-Qualifying
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	7	0
Purchases	9	6
Changes in fair value included in earnings	2	1
Changes in fair value included in comprehensive income	0	0
Transfers in	0	0
Maturity and settlements	(1)	0
Ending balance	$ 17	$ 7