DERIVATIVES - Derivatives by Category (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivatives: designated for hedge accounting | Cash flow hedges:
Derivatives, Fair Value [Line Items]
Notional Amount	$ 2,222	$ 1,876
Derivative Assets	179	7
Derivative Liabilities	370	437
Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	57,096	79,394
Derivative Assets	6,492	12,303
Derivative Liabilities	7,356	11,261
Currency swaps | Derivatives: designated for hedge accounting | Cash flow hedges:
Derivatives, Fair Value [Line Items]
Notional Amount	1,267	921
Derivative Assets	178	7
Derivative Liabilities	118	42
Currency swaps | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	326	541
Derivative Assets	24	1
Derivative Liabilities	0	0
Interest swaps | Derivatives: designated for hedge accounting | Cash flow hedges:
Derivatives, Fair Value [Line Items]
Notional Amount	955	955
Derivative Assets	1	0
Derivative Liabilities	252	395
Interest swaps | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	1,116	1,876
Derivative Assets	0	0
Derivative Liabilities	134	45
Futures | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	3,648	2,213
Derivative Assets	0	0
Derivative Liabilities	0	0
Swaps | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	9,763	13,310
Derivative Assets	23	5
Derivative Liabilities	0	0
Options | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	36,687	48,380
Derivative Assets	6,207	12,015
Derivative Liabilities	3,897	5,059
Futures | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	5,456	12,455
Derivative Assets	0	0
Derivative Liabilities	0	0
Swaptions | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	0	0
Credit default swaps | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	100	619
Derivative Assets	0	2
Derivative Liabilities	2	3
Currency forwards | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	0	0
Margin | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	98	102
Derivative Liabilities	0	0
Collateral | Derivatives: not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	140	178
Derivative Liabilities	3,323	6,154
Amount Due from Reinsurers
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	4,312	5,813
Derivative Liabilities	0	0
GMIB reinsurance contracts
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	1,372	2,068
Derivative Liabilities	0	0
GMxB derivative features liability
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	5,834	8,525
SCS, SIO, MSO and IUL indexed features
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	0	0
Derivative Liabilities	2,056	6,641
Total embedded derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets	5,684	7,881
Derivative Liabilities	7,890	15,166
Total derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	59,318	81,270
Derivative Assets	12,355	20,191
Derivative Liabilities	$ 15,616	$ 26,864