INVESTMENTS - Schedule of Aggregate Fair Value and Gross Unrealized Depreciation of Fixed Maturity Securities by Contractual Maturity (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Fair Value
Less than 12 months	$ 7,302	$ 10,604
Greater than 12 months	7,355	7,728
Total	14,656	18,332
Gross Unrealized Depreciation
Less than 12 months	(201)	(324)
Greater than 12 months	(720)	(833)
Total	(921)	(1,157)
No Recorded Allowance for Credit Losses
Fair Value
Less than 12 months	7,284	10,587
Greater than 12 months	7,355	7,728
Total	14,639	18,315
Gross Unrealized Depreciation
Less than 12 months	(200)	(323)
Greater than 12 months	(720)	(833)
Total	(920)	(1,156)
Due in one year or less
Fair Value
Less than 12 months	185	138
Greater than 12 months	578	544
Total	763	682
Gross Unrealized Depreciation
Less than 12 months	(6)	(5)
Greater than 12 months	(33)	(34)
Total	(39)	(39)
Due in one year through five years
Fair Value
Less than 12 months	1,985	3,503
Greater than 12 months	2,839	2,770
Total	4,825	6,273
Gross Unrealized Depreciation
Less than 12 months	(40)	(87)
Greater than 12 months	(231)	(249)
Total	(271)	(335)
Due in five years through ten years
Fair Value
Less than 12 months	1,373	1,850
Greater than 12 months	1,217	1,382
Total	2,590	3,232
Gross Unrealized Depreciation
Less than 12 months	(28)	(50)
Greater than 12 months	(178)	(220)
Total	(206)	(271)
Due after ten years
Fair Value
Less than 12 months	531	677
Greater than 12 months	523	487
Total	1,054	1,164
Gross Unrealized Depreciation
Less than 12 months	(26)	(32)
Greater than 12 months	(78)	(76)
Total	(104)	(107)
Asset-backed Securities
Fair Value
Less than 12 months	907	958
Greater than 12 months	246	537
Total	1,153	1,495
Gross Unrealized Depreciation
Less than 12 months	(12)	(20)
Greater than 12 months	(10)	(19)
Total	(22)	(39)
Mortgage-backed securities
Fair Value
Less than 12 months	2,304	3,461
Greater than 12 months	1,951	2,008
Total	4,255	5,469
Gross Unrealized Depreciation
Less than 12 months	(89)	(129)
Greater than 12 months	(190)	(235)
Total	(279)	(364)
Securities where an allowance for credit loss was recorded
Fair Value
Less than 12 months	17	17
Greater than 12 months	0	0
Total	17	17
Gross Unrealized Depreciation
Less than 12 months	(1)	(1)
Greater than 12 months	0	0
Total	$ (2)	$ (1)

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