INVESTMENTS - Schedule of Components of Net Gains (Losses) on Investments (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale [Line Items]
Credit allowance on fixed maturity securities	$ (30)	$ 13	$ 7
Gains (losses) from fair value adjustment on public equities	(1)	(1)	0
Total net gains (losses) from dispositions	(112)	7	(283)
Total net gains (losses) on investments	(143)	19	(276)
Fixed maturities
Debt Securities, Available-for-Sale [Line Items]
Fixed maturities	(112)	6	(292)
Equity securities
Debt Securities, Available-for-Sale [Line Items]
Fixed maturities	(1)	1	8
Other invested assets
Debt Securities, Available-for-Sale [Line Items]
Fixed maturities	0	(1)	0
Short-term investments
Debt Securities, Available-for-Sale [Line Items]
Fixed maturities	$ 0	$ 1	$ 0

Investments, Allowance For (Reversal Of) Credit Loss

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Amount of realized and unrealized gain (loss) on investment.

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Amount of realized gain (loss) on investment.

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Amount of unrealized gain (loss) on investment.

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