INVESTMENTS - Contractual and Economic Maturities of Investments in Fixed Maturities (Detail) - USD ($) $ in Millions		Jun. 30, 2024		Dec. 31, 2023
Available for sale:
Due in one year or less	[1]	$ 1,214
Due after one year through five years	[1]	6,729
Due after five years through 10 years	[1]	17,527
Due after 10 years	[1]	35,724
Mortgage- and asset-backed securities	[1]	3,409
Total fixed maturity securities, available-for-sale, amortized cost	[1]	64,603
Held to maturity:
Due in one year or less	[1]	0
Due after one year through five years	[1]	33
Due after five years through 10 years	[1]	8,366
Due after 10 years	[1]	7,286
Total fixed maturity securities, held-to- maturity, amortized cost		15,685	[1]	$ 17,819
Available for sale:
Due in one year or less		1,265
Due after one year through five years		7,665
Due after five years through 10 years		18,946
Due after 10 years		34,680
Mortgage- and asset-backed securities		3,703
Fair Value		66,259		73,290
Held to maturity:
Due in one year or less		0
Due after one year through five years		34
Due after five years through 10 years		8,956
Due after 10 years		7,580
Fair Value		$ 16,570		$ 19,657

[1] Net of allowance for credit losses