DERIVATIVE INSTRUMENTS - Schedule of Interest Rate Fair Value Hedges Hedged Items (Details) - Fixed maturity securities - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Carrying Amount of Hedged Assets/ (Liabilities)	[1]	$ 3,038	$ 4,331
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of Hedged Assets/ (Liabilities)		$ 205	$ 237

[1] The balance includes hedging adjustment on discontinued hedging relationships of $205 in 2021 and $237 in 2020.