INVESTMENTS - Schedule of Fixed Maturities, Allowance for Credit Loss, Held-to-Maturity Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ (9)	$ 0
Credit losses on securities where credit losses were not previously recorded	0	(9)
Increases in allowance on previously impaired securities	0	0
Decreases in allowance on previously impaired securities	0	0
Reduction in allowance due to disposals	1	0
Balance, end of period	(8)	(9)
Corporate securities
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	(2)	0
Credit losses on securities where credit losses were not previously recorded	0	(2)
Increases in allowance on previously impaired securities	0	0
Decreases in allowance on previously impaired securities	0	0
Reduction in allowance due to disposals	0	0
Balance, end of period	(2)	(2)
Asset-backed securities
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	(6)	0
Credit losses on securities where credit losses were not previously recorded	0	(6)
Increases in allowance on previously impaired securities	0	0
Decreases in allowance on previously impaired securities	0	0
Reduction in allowance due to disposals	1	0
Balance, end of period	(5)	(6)
Foreign Corporate Securities
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	(1)	0
Credit losses on securities where credit losses were not previously recorded	0	(1)
Increases in allowance on previously impaired securities	0	0
Decreases in allowance on previously impaired securities	0	0
Reduction in allowance due to disposals	0	0
Balance, end of period	$ (1)	$ (1)