EQUITY - Components of AOCI (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended		12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2021
AOCI
Less: Income tax expense	$ 118	$ (29)		$ 47	$ 362
Total Accumulated Other Comprehensive Income (Loss)
AOCI
Beginning balance	170	(273)			1,533
Change in OCI	(576)				(389)
Amounts reclassified from AOCI	15				(1,336)
Less: Income tax expense	118				362
Ending balance	(273)				170
Foreign Currency Translation Adjustment
AOCI
Beginning balance	(1)	(1)			(1)
Change in OCI	0				0
Amounts reclassified from AOCI	0				0
Less: Income tax expense	0				0
Ending balance	(1)				(1)
Net Unrealized Investment Gains (Losses)
AOCI
Beginning balance	171	(272)	$ 0	111	1,534
Change in OCI	(576)		140	(223)	(389)
Amounts reclassified from AOCI	15				(1,336)
Less: Income tax expense	118		29	(47)	362
Ending balance	(272)	111	$ 111	$ (65)	171
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
AOCI
Beginning balance	25	$ 29
Ending balance	$ 29				$ 25