DERIVATIVES AND HEDGING - Impact of Derivatives by Operating Segment (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	$ 24			$ (560)
Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		$ 501	$ 4,906		$ 6,140
Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		500	4,903		6,132
Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		1	2		11
Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Other income (loss)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		2	5		11
Other income (loss) | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		4	33		58
Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Interest Rate | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		(527)	(63)		(1,853)
Interest Rate | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Interest Rate | Other income (loss) | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Interest Rate | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Currency | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	2		2
Currency | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Currency | Other income (loss) | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Currency | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Currency/Interest Rate | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		(6)	(9)		1
Currency/Interest Rate | Investment gains (losses), net | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		1	3		8
Currency/Interest Rate | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Currency/Interest Rate | Net Investment Income | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		1	2		11
Currency/Interest Rate | Other income (loss) | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Currency/Interest Rate | Other income (loss) | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		2	5		11
Currency/Interest Rate | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Currency/Interest Rate | Change in AOCI | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		4	33		58
Credit | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		(12)	1		11
Credit | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Credit | Other income (loss) | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Credit | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Equity | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		59	(18)		(1,798)
Equity | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Equity | Other income (loss) | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Equity | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Embedded Derivatives | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		986	4,990		9,769
Embedded Derivatives | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Embedded Derivatives | Other income (loss) | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		0	0		0
Embedded Derivatives | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)		$ 0	$ 0		$ 0
Retained Business
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(125)			133
Retained Business | Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(259)			(704)
Retained Business | Currency/Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	12			12
Retained Business | Credit
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(2)			(2)
Retained Business | Equity
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	124			827
Ceded Business
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	149			(693)
Ceded Business | Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(36)			(56)
Ceded Business | Currency
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	0			2
Ceded Business | Currency/Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(36)			94
Ceded Business | Credit
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	2			(4)
Ceded Business | Equity
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	$ 219			$ (729)