v3.26.3
Basis of Presentation (Details)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Dec. 17, 2025
USD ($)
shares
Nov. 26, 2025
D
$ / shares
shares
Nov. 24, 2025
Jul. 14, 2025
shares
Sep. 30, 2026
USD ($)
$ / shares
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
$ / shares
Sep. 30, 2025
USD ($)
Basis of Presentation                
Cash         $ 182   $ 182  
State income taxes payable           $ 91   $ 91
GCI Business                
Basis of Presentation                
Percentage of interest             100.00%  
Class C                
Basis of Presentation                
Number of shares issued | shares 11,059,127              
Number of rights issued per share     0.3838          
Number of shares per right | shares   1            
Exercise price of a right | $ / shares   $ 27.2            
Percentage of discount from trading price   20.00%            
Threshold number of trading days for determining exercise price | D   10            
Proceeds from rights offering $ 300              
Recurring | Level 1                
Basis of Presentation                
Cash equivalents         180   $ 180  
Recurring | Level 2                
Basis of Presentation                
Cash equivalents         $ 25   $ 25  
Affiliated Entity | Liberty Broadband                
Basis of Presentation                
Federal income taxes payable cancelled           206   206
Affiliated Entity | Liberty Broadband | Non-voting preferred stock                
Basis of Presentation                
Number of shares issued | shares       10,000        
Dividend rate             12.00%  
Liquidation price | $ / shares         $ 1,000   $ 1,000  
Affiliated Entity | Liberty Media                
Basis of Presentation                
Amount reimbursable         $ 2 $ 1 $ 6 $ 1