INVESTMENTS - Schedule of Components of Net Realized Capital Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Debt Securities, Available-for-Sale [Line Items]
Credit allowance on fixed maturity securities	$ (11)	$ (2)	$ 2	$ (2)
Gains (losses) from fair value adjustment on public equities	5	5	(1)	3
Total net realized gains (losses) from dispositions	(2)	(8)	(18)	(13)
Total net gains (losses) on investments	(8)	(5)	(17)	(12)
Fixed maturities
Debt Securities, Available-for-Sale [Line Items]
Fixed maturities	(2)	(8)	(18)	(12)
Equity securities
Debt Securities, Available-for-Sale [Line Items]
Fixed maturities	0	0	0	(1)
Other Invested Assets
Debt Securities, Available-for-Sale [Line Items]
Fixed maturities	0	0	0	0
Short-term investments
Debt Securities, Available-for-Sale [Line Items]
Fixed maturities	$ 0	$ 0	$ 0	$ 0

Investments, Allowance For (Reversal Of) Credit Loss

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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