v3.26.3
Credit and Other Debt Agreements - Summary of Corporate and Other Debt (Detail) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Total corporate and other debt $ 13,091 $ 13,099
Less unamortized debt acquisition costs and discount (120) (129)
Net corporate and other debt 12,971 12,970
Premium Financing Debt Facility    
Debt Instrument [Line Items]    
Total corporate and other debt 228 226
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 2,683 3,323
Credit Agreement    
Debt Instrument [Line Items]    
Total corporate and other debt $ 630 $ 0