v3.26.3
Investments - Maturities of Available-for-Sale Investments (Detail) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Debt Securities, Available-for-Sale [Abstract]    
Due within 1 year $ 2,214  
Due in 1 year through 5 years 2,262  
Instruments not due in single maturity 92  
Total $ 4,568 $ 6,329