INVESTMENTS - Contractual and Economic Maturities of Investments in Fixed Maturities (Detail) - USD ($) $ in Millions		Dec. 31, 2022		Dec. 31, 2021
Available for sale, amortized cost:
Due in one year or less	[1]	$ 1,777
Due after one year through five years	[1]	6,806
Due after five years through 10 years	[1]	15,467
Due after 10 years	[1]	49,252
Mortgage- and asset-backed securities	[1]	2,167
Total fixed maturity securities available for sale	[1]	75,469
Held to maturity, amortized cost:
Due in one year or less	[1]	0
Due after one year through five years	[1]	40
Due after five years through 10 years	[1]	10,132
Due after 10 years	[1]	8,884
Mortgage- and asset-backed securities	[1]	0
Total fixed maturity securities held to maturity		19,056	[1]	$ 22,000
Available for sale, fair value:
Due in one year or less		1,894
Due after one year through five years		7,080
Due after five years through 10 years		16,498
Due after 10 years		48,123
Mortgage- and asset-backed securities		2,146
Available for sale, fixed maturity securities		75,741		98,696
Held to maturity, fair value:
Due in one year or less		0
Due after one year through five years		42
Due after five years through 10 years		11,212
Due after 10 years		9,956
Mortgage- and asset-backed securities		0
Held to maturity, fixed maturity securities, fair value		$ 21,210		$ 26,869

[1] Net of allowance for credit losses