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INVESTMENTS - Information Regarding Pretax Net Gains and Losses From Investments (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Gain (Loss) on Securities [Line Items] |  |
Gross gains (losses) from sales and redemptions | $ 1 | $ 5
Net investment gains (losses) | (963) | 951
Credit losses: |  |
Fixed maturity securities held-to-maturity | 0 | 0
Commercial mortgage and other loans | (53) | (7)
Impairment losses | 0 | 0
Loan commitments | (2) | 1
Reinsurance recoverables and other | 0 | 5
Total credit losses | (55) | (1)
Derivatives and other: |  |
Derivative gains (losses) | (45) | (215)
Foreign currency gains (losses) | (843) | 918
Fixed maturity securities |  |
Gain (Loss) on Securities [Line Items] |  |
Gross gains from sales | 114 | 34
Gross losses from sales | (235) | (282)
Foreign currency gains (losses) | 161 | 416
Debt securities and other investments |  |
Gain (Loss) on Securities [Line Items] |  |
Net investment gains (losses) | 41 | 173
Equity securities |  |
Gain (Loss) on Securities [Line Items] |  |
Net investment gains (losses) | (61) | 76
Derivatives and other |  |
Gain (Loss) on Securities [Line Items] |  |
Net investment gains (losses) | $ (888) | $ 703

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