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INVESTMENTS - Schedule of Components of Net Realized Capital Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Debt Securities, Available-for-Sale [Line Items]
Net gains (losses) on investments	$ (5)	$ (17)	$ (12)	$ (24)
Fixed maturity securities | Market Value
Debt Securities, Available-for-Sale [Line Items]
Allowance for credit losses	(2)	4	(2)	6
Fixed maturity securities | Fair Value
Debt Securities, Available-for-Sale [Line Items]
Net realized gains (losses) from dispositions	(8)	(15)	(12)	(22)
Equity securities, fair value | Market Value
Debt Securities, Available-for-Sale [Line Items]
Gains (losses) from fair value adjustments	5	(5)	3	(8)
Equity securities, fair value | Fair Value
Debt Securities, Available-for-Sale [Line Items]
Net realized gains (losses) from dispositions	0	0	(1)	1
Other invested assets
Debt Securities, Available-for-Sale [Line Items]
Net realized gains (losses) from dispositions	$ 0	$ (1)	$ 0	$ (1)

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