INVESTMENTS - Schedule of Aggregate Fair Value and Gross Unrealized Depreciation of Fixed Maturity Securities by Contractual Maturity (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair Value
Less than 12 months	$ 10,604	$ 2,566
Greater than 12 months	7,728	12,222
Total	18,332	14,789
Gross Unrealized Depreciation
Less than 12 months	(324)	(102)
Greater than 12 months	(833)	(1,035)
Total	(1,157)	(1,137)
Fixed maturity securities
Gross Unrealized Depreciation
Less than 12 months		(102)
Greater than 12 months	(833)	(1,000)
No Recorded Allowance for Credit Losses
Fair Value
Less than 12 months	10,587	2,564
Greater than 12 months	7,728	12,222
Total	18,315	14,787
Gross Unrealized Depreciation
Less than 12 months	(323)	(101)
Greater than 12 months	(833)	(1,035)
Total	(1,156)	(1,136)
Due in one year or less
Fair Value
Less than 12 months	138	184
Greater than 12 months	544	773
Total	682	958
Gross Unrealized Depreciation
Less than 12 months	(5)	(3)
Greater than 12 months	(34)	(30)
Total	(39)	(33)
Due in one year through five years
Fair Value
Less than 12 months	3,503	699
Greater than 12 months	2,770	3,841
Total	6,273	4,540
Gross Unrealized Depreciation
Less than 12 months	(87)	(18)
Greater than 12 months	(249)	(271)
Total	(335)	(289)
Due in five years through ten years
Fair Value
Less than 12 months	1,850	328
Greater than 12 months	1,382	2,306
Total	3,232	2,633
Gross Unrealized Depreciation
Less than 12 months	(50)	(15)
Greater than 12 months	(220)	(310)
Total	(271)	(325)
Due after ten years
Fair Value
Less than 12 months	677	429
Greater than 12 months	487	417
Total	1,164	845
Gross Unrealized Depreciation
Less than 12 months	(32)	(39)
Greater than 12 months	(76)	(77)
Total	(107)	(116)
Asset-backed securities
Fair Value
Less than 12 months	958	196
Greater than 12 months	537	2,014
Total	1,495	2,210
Gross Unrealized Depreciation
Less than 12 months	(20)	(2)
Greater than 12 months	(19)	(49)
Total	(39)	(51)
Mortgage-backed securities
Fair Value
Less than 12 months	3,461	729
Greater than 12 months	2,008	2,872
Total	5,469	3,601
Gross Unrealized Depreciation
Less than 12 months	(129)	(24)
Greater than 12 months	(235)	(298)
Total	(364)	(323)
Securities where an allowance for credit loss was recorded
Fair Value
Less than 12 months	17	2
Greater than 12 months	0	0
Total	17	2
Gross Unrealized Depreciation
Less than 12 months	(1)	(1)
Greater than 12 months	0	0
Total	$ (1)	$ (1)

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