INVESTMENTS - Contractual and Economic Maturities of Investments in Fixed Maturities (Detail) - USD ($) $ in Millions		Dec. 31, 2024		Dec. 31, 2023
Available for sale, amortized cost:
Due in one year or less	[1]	$ 1,369
Due after one year through five years	[1]	7,522
Due after five years through 10 years	[1]	17,302
Due after 10 years	[1]	34,582
Mortgage- and asset-backed securities	[1]	3,314
Total fixed maturity securities available for sale	[1]	64,089
Held to maturity, amortized cost:
Due in one year or less	[1]	0
Due after one year through five years	[1]	34
Due after five years through 10 years	[1]	8,516
Due after 10 years	[1]	7,416
Total fixed maturity securities held to maturity		15,966	[1]	$ 17,819
Available for sale, fair value:
Due in one year or less		1,536
Due after one year through five years		8,424
Due after five years through 10 years		18,495
Due after 10 years		33,251
Mortgage- and asset-backed securities		3,563
Available for sale, fixed maturity securities		65,269		73,290
Held to maturity, fair value:
Due in one year or less		0
Due after one year through five years		34
Due after five years through 10 years		9,045
Due after 10 years		7,693
Held to maturity, fixed maturity securities, fair value		$ 16,772		$ 19,657

[1] Net of allowance for credit losses