v3.26.3
Fair Value Measurement (Details) - Level 1 - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Money market trust    
Financial assets    
Cash and cash equivalents $ 2,493 $ 2,262
Restricted cash 92 90
Money market fund    
Financial assets    
Cash and cash equivalents $ 99 $ 548