v3.26.1
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Property and Equipment        
Advertising expenses $ 136 $ 217 $ 277 $ 426
Research and Development        
Research and development costs $ 14 $ 16 $ 30 $ 34