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INVESTMENTS - Summary of Fixed Maturity and Equity Securities by Contractual Maturity (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Fair Value
Less than 12 months	$ 7,961	$ 15,215
Greater than 12 months	11,591	4,432
Total	19,551	19,647
Gross Unrealized Depreciation
Less than 12 months	(296)	(1,217)
Greater than 12 months	(1,420)	(764)
Total	(1,716)	(1,982)
No Recorded Allowance for Credit Losses
Fair Value
Less than 12 months	7,958	15,213
Greater than 12 months	11,590	4,432
Total	19,548	19,645
Gross Unrealized Depreciation
Less than 12 months	(295)	(1,217)
Greater than 12 months	(1,419)	(764)
Total	(1,714)	(1,982)
Due in one year or less
Fair Value
Less than 12 months	849	989
Greater than 12 months	285	40
Total	1,134	1,029
Gross Unrealized Depreciation
Less than 12 months	(14)	(19)
Greater than 12 months	(19)	(7)
Total	(32)	(26)
Due in one year through five years
Fair Value
Less than 12 months	2,342	4,935
Greater than 12 months	4,391	1,645
Total	6,733	6,580
Gross Unrealized Depreciation
Less than 12 months	(86)	(383)
Greater than 12 months	(436)	(209)
Total	(523)	(592)
Due in five years through ten years
Fair Value
Less than 12 months	1,196	2,698
Greater than 12 months	2,308	911
Total	3,503	3,609
Gross Unrealized Depreciation
Less than 12 months	(66)	(360)
Greater than 12 months	(422)	(230)
Total	(489)	(590)
Due after ten years
Fair Value
Less than 12 months	339	672
Greater than 12 months	715	408
Total	1,055	1,080
Gross Unrealized Depreciation
Less than 12 months	(22)	(91)
Greater than 12 months	(172)	(116)
Total	(194)	(207)
Asset-backed securities
Fair Value
Less than 12 months	1,644	3,204
Greater than 12 months	1,881	456
Total	3,525	3,661
Gross Unrealized Depreciation
Less than 12 months	(37)	(142)
Greater than 12 months	(92)	(29)
Total	(129)	(171)
Mortgage-backed securities
Fair Value
Less than 12 months	1,588	2,715
Greater than 12 months	2,010	972
Total	3,598	3,687
Gross Unrealized Depreciation
Less than 12 months	(70)	(222)
Greater than 12 months	(278)	(173)
Total	(347)	(395)
Recorded an Allowance for Credit Losses
Fair Value
Less than 12 months	3	2
Greater than 12 months	0	0
Total	3	2
Gross Unrealized Depreciation
Less than 12 months	(1)	0
Greater than 12 months	(1)	0
Total	$ (2)	$ 0

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