SEGMENT INFORMATION - Schedule of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended						6 Months Ended	9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
REVENUES
Premiums	$ 8		$ 8	$ 6		$ 8	$ 11	$ 33
Policy charges and fee income	131		97	106		97	261	1,128
Net investment income	92		99	101			189	386
Asset management and service fees	26		20	23			48	232
Other losses	(16)		(19)	(42)			(15)	(556)
Investment gains (losses), net	(455)		481	5,081		481	(1,753)	7,373
TOTAL REVENUES	(214)		686	5,275			(1,259)	8,596
BENEFITS AND EXPENSES
Policyholder benefits and changes in fair value of insurance liabilities	(104)		0	0			(974)	0
Commission expense	27		35	1,408			45	1,739
General, administrative and other expenses	17		3	(90)			55	38
TOTAL BENEFITS AND EXPENSES	(60)		253	1,536			(874)	2,573
INCOME (LOSS) FROM OPERATIONS BEFORE INCOME TAXES	(154)		433	3,739			(385)	6,023
Income tax expense (benefit)	3		77	778			(48)	1,247
NET INCOME (LOSS)	(157)		356	2,961			(337)	4,776
Other comprehensive income (loss), before tax:
Changes in own-credit risk related to insurance liabilities	149		0	0			394	0
Income tax benefit	32	$ (51)	(118)	(19)			83	(332)
Other comprehensive loss, net of tax	117	$ 194	(443)	(69)	$ 234	$ (1,413)	311	(1,248)
Comprehensive income (loss)	(40)		$ (87)	$ 2,892			(26)	$ 3,528
Retained Business
REVENUES
Premiums	8						11
Policy charges and fee income	131						261
Net investment income	47						82
Asset management and service fees	26						48
Other losses	(4)						(4)
Investment gains (losses), net	(463)						(571)
TOTAL REVENUES	(255)						(173)
BENEFITS AND EXPENSES
Policyholder benefits and changes in fair value of insurance liabilities	(145)						112
Commission expense	27						45
General, administrative and other expenses	17						55
TOTAL BENEFITS AND EXPENSES	(101)						212
INCOME (LOSS) FROM OPERATIONS BEFORE INCOME TAXES	(154)						(385)
Income tax expense (benefit)	3						(48)
NET INCOME (LOSS)	(157)						(337)
Other comprehensive income (loss), before tax:
Changes in own-credit risk related to insurance liabilities	149						394
Income tax benefit	32						83
Other comprehensive loss, net of tax	117						311
Comprehensive income (loss)	(40)						(26)
Ceded Business
REVENUES
Premiums	0						0
Policy charges and fee income	0						0
Net investment income	45						107
Asset management and service fees	0						0
Other losses	(12)						(11)
Investment gains (losses), net	8						(1,182)
TOTAL REVENUES	41						(1,086)
BENEFITS AND EXPENSES
Policyholder benefits and changes in fair value of insurance liabilities	41						(1,086)
Commission expense	0						0
General, administrative and other expenses	0						0
TOTAL BENEFITS AND EXPENSES	41						(1,086)
INCOME (LOSS) FROM OPERATIONS BEFORE INCOME TAXES	0						0
Income tax expense (benefit)	0						0
NET INCOME (LOSS)	0						0
Other comprehensive income (loss), before tax:
Changes in own-credit risk related to insurance liabilities	0						0
Income tax benefit	0						0
Other comprehensive loss, net of tax	0						0
Comprehensive income (loss)	$ 0						$ 0