INVESTMENTS - Schedule of Aggregate Fair Value and Gross Unrealized Depreciation of Fixed Maturity Securities by Security Type (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)
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)
U.S. Treasury securities and obligations of U.S. government agencies and corporations
Fair Value
Less than 12 months	80	122
Greater than 12 months	398	772
Total	478	893
Gross Unrealized Depreciation
Less than 12 months	(1)	(3)
Greater than 12 months	(23)	(49)
Total	(24)	(52)
Obligations of U.S. States and political subdivisions
Fair Value
Less than 12 months	9	3
Greater than 12 months	40	74
Total	48	77
Gross Unrealized Depreciation
Less than 12 months	0	0
Greater than 12 months	(5)	(11)
Total	(5)	(11)
Corporate securities
Fair Value
Less than 12 months	2,744	1,019
Greater than 12 months	2,132	2,780
Total	4,876	3,799
Gross Unrealized Depreciation
Less than 12 months	(76)	(58)
Greater than 12 months	(221)	(263)
Total	(297)	(321)
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)
Commercial
Fair Value
Less than 12 months	53	181
Greater than 12 months	757	742
Total	810	923
Gross Unrealized Depreciation
Less than 12 months	(3)	(19)
Greater than 12 months	(63)	(73)
Total	(66)	(92)
Agency residential
Fair Value
Less than 12 months	2,754	423
Greater than 12 months	1,226	2,126
Total	3,980	2,549
Gross Unrealized Depreciation
Less than 12 months	(115)	(4)
Greater than 12 months	(172)	(225)
Total	(287)	(229)
Non-agency residential
Fair Value
Less than 12 months	654	126
Greater than 12 months	25	4
Total	678	130
Gross Unrealized Depreciation
Less than 12 months	(11)	(1)
Greater than 12 months	0	0
Total	(11)	0
Foreign government securities
Fair Value
Less than 12 months	851	172
Greater than 12 months	828	985
Total	1,679	1,156
Gross Unrealized Depreciation
Less than 12 months	(35)	(7)
Greater than 12 months	(112)	(101)
Total	(147)	(108)
Foreign corporate securities
Fair Value
Less than 12 months	2,484	324
Greater than 12 months	1,785	2,726
Total	4,269	3,050
Gross Unrealized Depreciation
Less than 12 months	(61)	(6)
Greater than 12 months	(218)	(265)
Total	(279)	(271)
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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