EQUITY - Cumulative Gains (Losses) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI	$ 2,160	$ 231	$ 647	$ 781
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI	(694)	(381)	$ 98	$ 136
Unrealized gains (losses) on investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI	(51)	(382)
Market risk benefits - instrument-specific credit risk component
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI	(649)	1
Liability or future policy benefits - current discount rate component
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI	$ 6	$ 0