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v3.26.1

Credit and Other Debt Agreements - Summary of Corporate and Other Debt (Detail) - USD ($) $ in Millions | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Debt Instrument [Line Items] |  |
Total corporate and other debt | $ 12,999 | $ 13,099
Less unamortized debt acquisition costs and discount | (126) | (129)
Net corporate and other debt | 12,873 | 12,970
Premium Financing Debt Facility |  |
Debt Instrument [Line Items] |  |
Total corporate and other debt | 156 | 226
Senior Notes: |  |
Debt Instrument [Line Items] |  |
Total corporate and other debt | 9,550 | 9,550
Note Purchase Agreements |  |
Debt Instrument [Line Items] |  |
Total corporate and other debt | 3,008 | 3,323
Credit Agreement |  |
Debt Instrument [Line Items] |  |
Total corporate and other debt | $ 285 | $ 0

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