DERIVATIVES AND HEDGING - Impact of Derivatives by Operating Segment (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2021
Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	$ (584)	$ 501	$ (812)	$ 1,232
Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		1	4	9
Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		2	(1)	5
Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		4	22	25
Designated as Hedging Instrument | Cash Flow Hedging | Currency/Interest Rate | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		1	3	4
Designated as Hedging Instrument | Cash Flow Hedging | Currency/Interest Rate | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		1	4	9
Designated as Hedging Instrument | Cash Flow Hedging | Currency/Interest Rate | Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		2	(1)	6
Designated as Hedging Instrument | Cash Flow Hedging | Currency/Interest Rate | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		4	22	25
Not Designated as Hedging Instrument | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		500	(815)	1,228
Not Designated as Hedging Instrument | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Currency/Interest Rate | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		(6)	7	10
Not Designated as Hedging Instrument | Currency/Interest Rate | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Currency/Interest Rate | Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Currency/Interest Rate | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Interest Rate | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		(527)	1,955	(1,790)
Not Designated as Hedging Instrument | Interest Rate | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Interest Rate | Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Interest Rate | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Currency | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Currency | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Currency | Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Currency | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Credit | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		(12)	7	9
Not Designated as Hedging Instrument | Credit | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Credit | Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Credit | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Equity | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		59	(850)	(1,780)
Not Designated as Hedging Instrument | Equity | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Equity | Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Equity | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Embedded Derivatives | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		986	(1,934)	4,779
Not Designated as Hedging Instrument | Embedded Derivatives | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Embedded Derivatives | Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0	0
Not Designated as Hedging Instrument | Embedded Derivatives | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		$ 0	$ 0	$ 0