DERIVATIVE INSTRUMENTS - Schedule of Interest Rate Fair Value Hedges Hedged Items (Details) - Fixed maturity securities - USD ($) $ in Millions		Mar. 31, 2024	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Hedged Assets/ (Liabilities)	[1]	$ 1,597	$ 1,692
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets/(Liabilities)		$ 161	$ 164

[1] The balance includes hedging adjustment on discontinued hedging relationships of $161 in 2024 and $164 in 2023.