DERIVATIVES AND HEDGING - Impact of Derivatives by Operating Segment (Details) - Investment gains (losses), net - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	$ (584)	$ 501	$ (812)	$ 1,232
Retained Business
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	258
Retained Business | Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(445)
Retained Business | Currency/Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	0
Retained Business | Equity
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	703
Ceded Business
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(842)
Ceded Business | Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(20)
Ceded Business | Currency
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	2
Ceded Business | Currency/Interest Rate
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	130
Ceded Business | Credit
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	(6)
Ceded Business | Equity
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, gain (loss)	$ (948)