v3.26.1
Revenue Recognition - Government Assistance (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Revenue Recognition      
Grant proceeds received for capital expenditures $ 1 $ 16  
Federal government grants to construct broadband      
Revenue Recognition      
Grant proceeds received for capital expenditures 1 $ 16  
Short-term deferred revenue 6   $ 6
Long-term deferred revenue $ 108   $ 108
Minimum | Federal government grants to construct broadband      
Revenue Recognition      
Government assistance transaction duration 10 years    
Maximum | Federal government grants to construct broadband      
Revenue Recognition      
Government assistance transaction duration 21 years