DERIVATIVES - Financial Statement Impact of Derivatives By Category (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	$ (3)	$ 0
Futures
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(9)	17
Swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Options
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	1
Futures
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(12)	0
Swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Swaptions
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Credit default swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Currency swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Currency forwards
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Margin
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Collateral
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Derivatives
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(21)	18
Amounts due from reinsurers
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
GMIB reinsurance contracts
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
GMxB derivative features’ liability
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	6	0
MSO and IUL indexed features
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	12	(18)
Embedded derivative
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	$ 18	$ (18)