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INVESTMENTS - Schedule of Components of Net Realized Capital Gains (Losses) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Debt Securities, Available-for-Sale [Line Items] |  |
Net gains (losses) on investments | $ (7) | $ (7)
Fixed maturities | Market Value |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Allowance for credit losses | (1) | 2
Fixed maturities | Fair Value |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Net realized gains (losses) from dispositions | (4) | (7)
Equity securities | Market Value |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Gains (losses) from fair value adjustments | (2) | (2)
Equity securities | Fair Value |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Net realized gains (losses) from dispositions | $ 0 | $ 1

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