INVESTMENTS - Schedule of Aggregate Fair Value and Gross Unrealized Depreciation of Fixed Maturity Securities by Contractual Maturity (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Fair Value
Less than 12 months	$ 7,428	$ 2,566
Greater than 12 months	9,980	12,222
Total	17,408	14,789
Gross Unrealized Depreciation
Less than 12 months	(234)	(102)
Greater than 12 months	(1,016)	(1,035)
Total	(1,249)	(1,137)
No Recorded Allowance for Credit Losses
Fair Value
Less than 12 months	7,414	2,564
Greater than 12 months	9,978	12,222
Total	17,392	14,787
Gross Unrealized Depreciation
Less than 12 months	(233)	(101)
Greater than 12 months	(1,016)	(1,035)
Total	(1,248)	(1,136)
Due in one year or less
Fair Value
Less than 12 months	256	184
Greater than 12 months	763	773
Total	1,019	958
Gross Unrealized Depreciation
Less than 12 months	(7)	(3)
Greater than 12 months	(31)	(30)
Total	(39)	(33)
Due in one year through five years
Fair Value
Less than 12 months	1,602	699
Greater than 12 months	3,727	3,841
Total	5,328	4,540
Gross Unrealized Depreciation
Less than 12 months	(28)	(18)
Greater than 12 months	(299)	(271)
Total	(326)	(289)
Due in five years through ten years
Fair Value
Less than 12 months	1,955	328
Greater than 12 months	1,971	2,306
Total	3,927	2,633
Gross Unrealized Depreciation
Less than 12 months	(49)	(15)
Greater than 12 months	(303)	(310)
Total	(352)	(325)
Due after ten years
Fair Value
Less than 12 months	829	429
Greater than 12 months	589	417
Total	1,418	845
Gross Unrealized Depreciation
Less than 12 months	(26)	(39)
Greater than 12 months	(88)	(77)
Total	(114)	(116)
Asset-backed Securities
Fair Value
Less than 12 months	341	196
Greater than 12 months	607	2,014
Total	948	2,210
Gross Unrealized Depreciation
Less than 12 months	(3)	(2)
Greater than 12 months	(24)	(49)
Total	(27)	(51)
Mortgage-backed securities
Fair Value
Less than 12 months	2,431	729
Greater than 12 months	2,321	2,872
Total	4,752	3,601
Gross Unrealized Depreciation
Less than 12 months	(120)	(24)
Greater than 12 months	(270)	(298)
Total	(390)	(323)
Recorded an Allowance for Credit Losses
Fair Value
Less than 12 months	15	2
Greater than 12 months	2	0
Total	16	2
Gross Unrealized Depreciation
Less than 12 months	(1)	(1)
Greater than 12 months	0	0
Total	$ (1)	$ (1)

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