INVESTMENTS - Contractual and Economic Maturities of Investments in Fixed Maturities (Detail) - USD ($) $ in Millions		Dec. 31, 2023		Dec. 31, 2022
Available for sale, amortized cost:
Due in one year or less	[1]	$ 1,422
Due after one year through five years	[1]	6,690
Due after five years through 10 years	[1]	18,885
Due after 10 years	[1]	40,729
Mortgage- and asset-backed securities	[1]	2,963
Total fixed maturity securities available for sale	[1]	70,689
Held to maturity, amortized cost:
Due in one year or less	[1]	0
Due after one year through five years	[1]	37
Due after five years through 10 years	[1]	9,504
Due after 10 years	[1]	8,278
Total fixed maturity securities held to maturity		17,819	[1]	$ 19,056
Available for sale, fair value:
Due in one year or less		1,440
Due after one year through five years		7,358
Due after five years through 10 years		20,740
Due after 10 years		40,666
Mortgage- and asset-backed securities		3,086
Available for sale, fixed maturity securities		73,290		75,741
Held to maturity, fair value:
Due in one year or less		0
Due after one year through five years		39
Due after five years through 10 years		10,458
Due after 10 years		9,160
Held to maturity, fixed maturity securities, fair value		$ 19,657		$ 21,210

[1] Net of allowance for credit losses