v3.26.3
Revenue Recognition - Government Assistance (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Revenue Recognition          
Grant proceeds received for capital expenditures $ 0 $ 3 $ 5 $ 22  
Short-term deferred revenue 6   6   $ 6
Long-term deferred revenue $ 109   $ 109   $ 108
Minimum          
Revenue Recognition          
Government assistance transaction duration     9 years    
Maximum          
Revenue Recognition          
Government assistance transaction duration     21 years