DERIVATIVES AND HEDGING - Impact of Derivatives by Operating Segment (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	$ (202)	$ (584)		$ (195)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Investment gains (losses), net	Investment gains (losses), net		Investment gains (losses), net
Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 501
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Investment gains (losses), net
Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 500
Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 1
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Net investment income
Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 0
Other Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 2
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Other income (loss)
Other Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 0
Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 4
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Net unrealized investment losses
Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 0
Interest Rate | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			(527)
Interest Rate | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Interest Rate | Other Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Interest Rate | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Credit | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			(12)
Credit | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Credit | Other Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Credit | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
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
Currency/Interest Rate | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			(6)
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
Currency/Interest Rate | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Currency/Interest Rate | Other Income | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			2
Currency/Interest Rate | Other Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			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
Currency/Interest Rate | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Equity | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			59
Equity | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Equity | Other Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Equity | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Embedded Derivatives | Investment gains (losses), net | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			986
Embedded Derivatives | Net Investment Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Embedded Derivatives | Other Income | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			0
Embedded Derivatives | Change in AOCI | Not Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)			$ 0
Retained Business
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	$ (339)	$ 258		$ (439)
Retained Business | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Investment gains (losses), net
Retained Business | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Net investment income
Retained Business | Other Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Other income (loss)
Retained Business | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Net unrealized investment losses
Retained Business | Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(77)	(445)		38
Retained Business | Credit
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	2	0
Retained Business | Equity
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(264)	703		(479)
Ceded Business
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	137	(842)		244
Ceded Business | Investment gains (losses), net
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Investment gains (losses), net
Ceded Business | Net Investment Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Net investment income
Ceded Business | Other Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Other income (loss)
Ceded Business | Change in AOCI
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Net unrealized investment losses
Ceded Business | Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	36	(20)		67
Ceded Business | Credit
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	1	(6)		1
Ceded Business | Currency
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	0	2		0
Ceded Business | Currency/Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	0	130		0
Ceded Business | Equity
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	$ 100	$ (948)		$ 176