INVESTMENTS - Schedule of Aggregate Fair Value and Gross Unrealized Depreciation of Fixed Maturity Securities by Contractual Maturity (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Fair Value
Less than 12 months	$ 5,895	$ 10,604
Greater than 12 months	7,216	7,728
Total	13,110	18,332
Gross Unrealized Depreciation
Less than 12 months	(205)	(324)
Greater than 12 months	(664)	(833)
Total	(870)	(1,157)
No Recorded Allowance for Credit Losses
Fair Value
Less than 12 months	5,858	10,587
Greater than 12 months	7,200	7,728
Total	13,059	18,315
Gross Unrealized Depreciation
Less than 12 months	(201)	(323)
Greater than 12 months	(664)	(833)
Total	(865)	(1,156)
Due in one year or less
Fair Value
Less than 12 months	216	138
Greater than 12 months	557	544
Total	772	682
Gross Unrealized Depreciation
Less than 12 months	(11)	(5)
Greater than 12 months	(25)	(34)
Total	(36)	(39)
Due in one year through five years
Fair Value
Less than 12 months	1,843	3,503
Greater than 12 months	2,695	2,770
Total	4,538	6,273
Gross Unrealized Depreciation
Less than 12 months	(61)	(87)
Greater than 12 months	(199)	(249)
Total	(260)	(335)
Due in five years through ten years
Fair Value
Less than 12 months	771	1,850
Greater than 12 months	1,105	1,382
Total	1,876	3,232
Gross Unrealized Depreciation
Less than 12 months	(16)	(50)
Greater than 12 months	(152)	(220)
Total	(169)	(271)
Due after ten years
Fair Value
Less than 12 months	487	677
Greater than 12 months	498	487
Total	985	1,164
Gross Unrealized Depreciation
Less than 12 months	(30)	(32)
Greater than 12 months	(74)	(76)
Total	(104)	(107)
Asset-backed securities
Fair Value
Less than 12 months	843	958
Greater than 12 months	235	537
Total	1,078	1,495
Gross Unrealized Depreciation
Less than 12 months	(22)	(20)
Greater than 12 months	(8)	(19)
Total	(30)	(39)
Mortgage-backed securities
Fair Value
Less than 12 months	1,699	3,461
Greater than 12 months	2,111	2,008
Total	3,809	5,469
Gross Unrealized Depreciation
Less than 12 months	(60)	(129)
Greater than 12 months	(206)	(235)
Total	(266)	(364)
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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