FAIR VALUE DISCLOSURES - Fair Value Measurement Reconciliation for All Levels (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Total gains (losses), realized and unrealized, included in:
Transfers into level 3	$ 258	$ 2
Transfers out of level 3	(110)	(549)
GMxB derivative features’ liability
Total gains (losses), realized and unrealized, included in:
Settlement fee		46
Corporate Debt Securities [Member] | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	1,504	1,702
Net investment income (loss)	1	1
Investment gains (losses), net	1	(6)
Total realized and unrealized gains (losses)	2	(5)
Other comprehensive income (loss)	(31)	9
Purchases	232	165
Sales	(87)	(69)
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3	70	2
Transfers out of level 3	(7)	(549)
Ending Balance	1,683	1,255
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	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	(29)	9
State and Political Subdivisions | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	35	39
Net investment income (loss)	0	0
Investment gains (losses), net	0	0
Total realized and unrealized gains (losses)	0	0
Other comprehensive income (loss)	(2)	(1)
Purchases	0	0
Sales	(1)	0
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Ending Balance	32	38
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	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)	(1)
Asset-backed | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	8	20
Net investment income (loss)	0	0
Investment gains (losses), net	0	0
Total realized and unrealized gains (losses)	0	0
Other comprehensive income (loss)	0	0
Purchases	325	50
Sales	(1)	(5)
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Ending Balance	332	65
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	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
CMBS | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	20	0
Net investment income (loss)	0	0
Investment gains (losses), net	0	0
Total realized and unrealized gains (losses)	0	0
Other comprehensive income (loss)	(1)	0
Purchases	219	4
Sales	0	0
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Ending Balance	238	4
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	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	(1)	0
Trading Securities, at Fair Value | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	65	39
Net investment income (loss)	0	0
Investment gains (losses), net	(13)	0
Total realized and unrealized gains (losses)	(13)	0
Other comprehensive income (loss)	0	0
Purchases	0	0
Sales	0	0
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Ending Balance	52	39
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	(13)	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
Fixed maturities, at FVO | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	201	80
Net investment income (loss)	(4)	3
Investment gains (losses), net	0	0
Total realized and unrealized gains (losses)	(4)	3
Other comprehensive income (loss)	0	0
Purchases	89	88
Sales	(29)	(8)
Activity related to consolidated VIEs/VOEs	0
Transfers into level 3	188	7
Transfers out of level 3	(103)	(28)
Ending Balance	342	142
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	(4)	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
Other equity investments | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	16	84
Net investment income (loss)	0	1
Investment gains (losses), net	0	0
Total realized and unrealized gains (losses)	0	1
Other comprehensive income (loss)	0	0
Purchases	0	2
Sales	0	(2)
Activity related to consolidated VIEs/VOEs	(2)	(2)
Transfers into level 3	0	0
Transfers out of level 3	(3)	0
Ending Balance	11	83
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	1
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
GMIB Reinsurance Contract Asset
Total gains (losses), realized and unrealized, included in:
Non-performance risk	(36)	(15)
GMIB Reinsurance Contract Asset | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	1,848	2,488
Net investment income (loss)	0	0
Investment gains (losses), net	(260)	(578)
Total realized and unrealized gains (losses)	(260)	(578)
Other comprehensive income (loss)	0	0
Purchases	10	11
Sales	(16)	(14)
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Ending Balance	1,582	1,907
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	(260)	(578)
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
Amounts Due from Reinsurers
Total gains (losses), realized and unrealized, included in:
Non-performance risk	(42)	0
Amounts Due from Reinsurers | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	5,815	0
Net investment income (loss)	0	0
Investment gains (losses), net	(767)	0
Total realized and unrealized gains (losses)	(767)	0
Other comprehensive income (loss)	0	0
Purchases	33	0
Sales	(25)	0
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3		0
Transfers out of level 3	0	0
Ending Balance	5,056	0
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	(767)	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
Separate Accounts Assets | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	1	1
Net investment income (loss)	0	0
Investment gains (losses), net	0	0
Total realized and unrealized gains (losses)	0	0
Other comprehensive income (loss)	0	0
Purchases	0	0
Sales	(1)	0
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	(1)
Ending Balance	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
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
GMxB Derivative Features Liability
Total gains (losses), realized and unrealized, included in:
Non-performance risk	483	79
GMxB Derivative Features Liability | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	(8,525)	(11,131)
Net investment income (loss)	0	0
Investment gains (losses), net	1,688	3,408
Total realized and unrealized gains (losses)	1,688	3,408
Other comprehensive income (loss)	0	0
Purchases	(120)	(119)
Sales	32	18
Activity related to consolidated VIEs/VOEs	0	0
Transfers into level 3	0	0
Transfers out of level 3	0	0
Ending Balance	(6,925)	(7,824)
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	1,688	3,408
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
Contingent Payment Arrangement | Level 3
Total gains (losses), realized and unrealized, included in:
Beginning Balance	(38)	(28)
Net investment income (loss)	0	0
Investment gains (losses), net	0	0
Total realized and unrealized gains (losses)	0	0
Other comprehensive income (loss)	0	0
Purchases	1	(7)
Sales	0	0
Activity related to consolidated VIEs/VOEs	0	(1)
Transfers into level 3	0	0
Transfers out of level 3	0	0
Ending Balance	(37)	(36)
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	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