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INVESTMENTS - Information Regarding Pretax Net Gains and Losses From Investments (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Gain (Loss) on Securities [Line Items] |  |
Gross gains (losses) from sales and redemptions | $ 5 | $ 0
Net investment gains (losses) | 951 | 123
Credit losses: |  |
Fixed maturity securities held-to-maturity | 0 | 1
Commercial mortgage and other loans | (7) | (31)
Impairment losses | 0 | 0
Loan commitments | 1 | 3
Reinsurance recoverables and other | 5 | (3)
Total credit losses | (1) | (30)
Derivatives and other: |  |
Derivative gains (losses) | (215) | 17
Foreign currency gains (losses) | 918 | 82
Fixed maturity securities |  |
Gain (Loss) on Securities [Line Items] |  |
Gross gains from sales | 34 | 1
Gross losses from sales | (282) | (3)
Foreign currency gains (losses) | 416 | 59
Debt Securities, Financing Receivables, and Other Investments |  |
Gain (Loss) on Securities [Line Items] |  |
Net investment gains (losses) | 173 | 57
Equity securities |  |
Gain (Loss) on Securities [Line Items] |  |
Net investment gains (losses) | 76 | (3)
Derivatives and other |  |
Gain (Loss) on Securities [Line Items] |  |
Net investment gains (losses) | $ 703 | $ 99

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