INVESTMENTS - Contractual and Economic Maturities of Investments in Fixed Maturities (Details) - USD ($) $ in Millions		Sep. 30, 2024		Dec. 31, 2023
Available for sale:
Due in one year or less	[1]	$ 1,240
Due after one year through five years	[1]	7,793
Due after five years through 10 years	[1]	19,539
Due after 10 years	[1]	38,252
Mortgage- and asset-backed securities	[1]	3,595
Total fixed maturity securities, available-for-sale, amortized cost	[1]	70,419
Held to maturity:
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]	9,440
Due after 10 years	[1]	8,221
Total fixed maturity securities, held-to- maturity, amortized cost		17,698	[1]	$ 17,819
Available for sale:
Due in one year or less		1,329
Due after one year through five years		8,611
Due after five years through 10 years		21,081
Due after 10 years		37,541
Mortgage- and asset-backed securities		3,730
Fair Value		72,292		73,290
Held to maturity:
Due in one year or less		0
Due after one year through five years		38
Due after five years through 10 years		10,201
Due after 10 years		8,736
Fair Value		$ 18,975		$ 19,657

[1] Net of allowance for credit losses