FAIR VALUE DISCLOSURES - Fair Value Measurement Reconciliation For All Levels (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net investment income (loss)
Transfers into level 3	$ 27	$ 184
Transfers out of Level 3	(713)	(103)
Amounts Due from Reinsurers
Net investment income (loss)
Nonperformance risk	(19)	0
GMIB reinsurance contract asset
Net investment income (loss)
Nonperformance risk	(26)	14
GMxB Derivative Features Liability
Net investment income (loss)
Nonperformance risk	(217)	(758)
Level 3 | Corporate
Net investment income (loss)
Beginning Balance	1,687	1,246	$ 1,174
Net investment income (loss)	5	4	4
Investment gains (losses), net	(16)	(16)	0
Total realized and unrealized gains (losses)	(11)	(12)	4
Other comprehensive income (loss)	34	(17)	5
Purchases	937	513	273
Sales	(468)	(224)	(120)
Activity related to consolidated VIEs/VOEs	0
Transfers into level 3	27	184	14
Transfers out of Level 3	(713)	(3)	(104)
Closing Balance	1,493	1,687	1,246
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	28	(18)	3
Level 3 | States and political subdivisions
Net investment income (loss)
Beginning Balance	39	39	38
Net investment income (loss)	0	0	0
Investment gains (losses), net	0	0	0
Total realized and unrealized gains (losses)	0	0	0
Other comprehensive income (loss)	(2)	2	3
Purchases	0	0	0
Sales	(2)	(2)	(2)
Activity related to consolidated VIEs/VOEs	0
Transfers into level 3	0	0	0
Transfers out of Level 3	0	0	0
Closing Balance	35	39	39
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	(2)	2	3
Level 3 | CMBS
Net investment income (loss)
Beginning Balance	0	0	0
Net investment income (loss)	0	0	0
Investment gains (losses), net	0	0	0
Total realized and unrealized gains (losses)	0	0	0
Other comprehensive income (loss)	0	0	0
Purchases	20	0	0
Sales	0	0	0
Activity related to consolidated VIEs/VOEs
Transfers into level 3	0	0	0
Transfers out of Level 3	0	0	0
Closing Balance	20	0	0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	0	0	0
Level 3 | Asset-backed
Net investment income (loss)
Beginning Balance	20	100	519
Net investment income (loss)	0	0	0
Investment gains (losses), net	0	0	0
Total realized and unrealized gains (losses)	0	0	0
Other comprehensive income (loss)	0	0	1
Purchases	6	20	100
Sales	(18)	0	(84)
Activity related to consolidated VIEs/VOEs	0
Transfers into level 3	0	0	0
Transfers out of Level 3	0	(100)	(436)
Closing Balance	8	20	100
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	0	0	0
Level 3 | Trading Securities, at Fair Value
Net investment income (loss)
Beginning Balance	0	0	29
Net investment income (loss)	0	0	0
Investment gains (losses), net	0	0	0
Total realized and unrealized gains (losses)	0	0	0
Other comprehensive income (loss)	0	0	0
Purchases	0	0	0
Sales	0	0	0
Activity related to consolidated VIEs/VOEs	0
Transfers into level 3	0	0	0
Transfers out of Level 3	0	0	(29)
Closing Balance	0	0	0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	0	0	0
Level 3 | Other Equity Investments
Net investment income (loss)
Beginning Balance	15	16	19
Net investment income (loss)	2	0	0
Investment gains (losses), net	0	0	0
Total realized and unrealized gains (losses)	2	0	0
Purchases	1	3	0
Sales	(1)	0	0
Settlements	0	0	0
Other	0
Change in estimate		0
Activity related to consolidated VIEs/VOEs	(4)	(4)	(3)
Transfers into level 3	0	0	0
Transfers out of Level 3	0	0	0
Closing Balance	13	15	16
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	2	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	0	0	0
Level 3 | Amounts Due from Reinsurers
Net investment income (loss)
Beginning Balance	0	0	0
Net investment income (loss)		0	0
Investment gains (losses), net	517	0	0
Total realized and unrealized gains (losses)	517	0	0
Purchases	73	0	0
Sales	(36)	0	0
Settlements	0	0	0
Other	5,259
Change in estimate		0
Activity related to consolidated VIEs/VOEs	0	0	0
Transfers into level 3	0	0	0
Transfers out of Level 3	0	0	0
Closing Balance	5,813	0	0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	517	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	0	0	0
Level 3 | GMIB reinsurance contract asset
Net investment income (loss)
Beginning Balance	2,859	2,466	1,993
Net investment income (loss)	0	0	0
Investment gains (losses), net	(777)	472	500
Total realized and unrealized gains (losses)	(777)	472	500
Purchases	44	45	45
Sales	(58)	(79)	(72)
Settlements	0	0	0
Other	0
Change in estimate		(45)
Activity related to consolidated VIEs/VOEs	0	0	0
Transfers into level 3	0	0	0
Transfers out of Level 3	0	0	0
Closing Balance	2,068	2,859	2,466
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	(777)	472	500
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	0	0	0
Level 3 | Separate Accounts Assets
Net investment income (loss)
Beginning Balance	1	0	21
Net investment income (loss)	0	0	0
Investment gains (losses), net	0	0	0
Total realized and unrealized gains (losses)	0	0	0
Purchases	1	1	0
Sales	0	0	(1)
Settlements	0	0	(2)
Other	0
Change in estimate		0
Activity related to consolidated VIEs/VOEs	0	0	0
Transfers into level 3	0	0	0
Transfers out of Level 3	(1)	0	(18)
Closing Balance	1	1	0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	0	0	0
Level 3 | GMxB Derivative Features Liability
Net investment income (loss)
Beginning Balance	(10,936)	(8,316)	(5,491)
Net investment income (loss)	0	0	0
Investment gains (losses), net	2,792	(2,238)	(2,439)
Total realized and unrealized gains (losses)	2,792	(2,238)	(2,439)
Purchases	(458)	(441)	(417)
Sales	77	59	31
Settlements	0	0	0
Other	0
Change in estimate		0
Activity related to consolidated VIEs/VOEs	0	0	0
Transfers into level 3	0	0	0
Transfers out of Level 3	0	0	0
Closing Balance	(8,525)	(10,936)	(8,316)
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	2,792	(2,238)	(2,439)
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period	$ 0	$ 0	$ 0