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INVESTMENTS - Schedule of Components of Net Realized Capital Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Debt Securities, Available-for-Sale [Line Items]
Net gains (losses) on investments	$ (27)	$ (31)	$ (50)	$ (21)
Fixed maturities | Market Value
Debt Securities, Available-for-Sale [Line Items]
Allowance for credit losses	(9)	2	(3)	(6)
Fixed maturities | Fair Value
Debt Securities, Available-for-Sale [Line Items]
Net realized gains (losses) from dispositions	(25)	(19)	(47)	(21)
Equity securities | Market Value
Debt Securities, Available-for-Sale [Line Items]
Gains (losses) from fair value adjustments	5	(16)	(3)	(3)
Equity securities | Fair Value
Debt Securities, Available-for-Sale [Line Items]
Net realized gains (losses) from dispositions	0	1	1	8
Other invested assets
Debt Securities, Available-for-Sale [Line Items]
Net realized gains (losses) from dispositions	$ 1	$ 0	$ 0	$ 0

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