INVESTMENTS - Schedule of Aggregate Fair Value and Gross Unrealized Depreciation of Fixed Maturity Securities - Available for Sale, by Contractual Maturity (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Fair Value
Less than 12 months	$ 3,088	$ 5,841
Greater than 12 months	3,614	3,856
Total	6,701	9,697
Gross Unrealized Depreciation
Less than 12 months	(89)	(172)
Greater than 12 months	(330)	(397)
Total	(419)	(569)
No Recorded Allowance for Credit Losses
Fair Value
Less than 12 months	3,052	5,823
Greater than 12 months	3,598	3,856
Total	6,650	9,680
Gross Unrealized Depreciation
Less than 12 months	(84)	(171)
Greater than 12 months	(330)	(397)
Total	(414)	(567)
Due in one year or less
Fair Value
Less than 12 months	48	53
Greater than 12 months	274	166
Total	322	219
Gross Unrealized Depreciation
Less than 12 months	(1)	(2)
Greater than 12 months	(10)	(11)
Total	(11)	(13)
Due in one year through five years
Fair Value
Less than 12 months	569	895
Greater than 12 months	1,158	1,313
Total	1,727	2,209
Gross Unrealized Depreciation
Less than 12 months	(14)	(22)
Greater than 12 months	(78)	(107)
Total	(91)	(129)
Due in five years through ten years
Fair Value
Less than 12 months	400	1,127
Greater than 12 months	426	572
Total	826	1,699
Gross Unrealized Depreciation
Less than 12 months	(6)	(23)
Greater than 12 months	(60)	(92)
Total	(66)	(115)
Due after ten years
Fair Value
Less than 12 months	330	465
Greater than 12 months	242	289
Total	571	754
Gross Unrealized Depreciation
Less than 12 months	(27)	(26)
Greater than 12 months	(34)	(35)
Total	(61)	(61)
Asset-backed securities
Fair Value
Less than 12 months	702	843
Greater than 12 months	201	501
Total	903	1,344
Gross Unrealized Depreciation
Less than 12 months	(20)	(17)
Greater than 12 months	(7)	(18)
Total	(27)	(35)
Mortgage-backed securities
Fair Value
Less than 12 months	1,003	2,441
Greater than 12 months	1,298	1,015
Total	2,302	3,455
Gross Unrealized Depreciation
Less than 12 months	(16)	(81)
Greater than 12 months	(141)	(134)
Total	(158)	(215)
Securities where an allowance for credit loss was recorded
Fair Value
Less than 12 months	36	17
Greater than 12 months	16	0
Total	52	17
Gross Unrealized Depreciation
Less than 12 months	(5)	(1)
Greater than 12 months	0	0
Total	$ (5)	$ (1)

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