DERIVATIVE INSTRUMENTS - Gains (Losses) Recognized on Fair Value Hedging Relationships (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives	$ (65)
Gains (losses) on derivatives excluded from effectiveness testing	(65)
Gain (losses) on derivatives included in effectiveness testing	0	[1]
Gains (losses) recognized for hedged items	0	[1]
Gain (Loss) on Foreign Currency Fair Value Hedge Derivatives	0
Fixed maturity securities | Foreign currency options
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives	(65)
Gains (losses) on derivatives excluded from effectiveness testing	(65)
Gain (losses) on derivatives included in effectiveness testing	0	[1]
Gains (losses) recognized for hedged items	0	[1]
Gain (Loss) on Foreign Currency Fair Value Hedge Derivatives	$ 0

[1] For the year ended December 31, 2023, gains and losses included in the hedge assessment on interest rate swaptions and related hedged items were immaterial.