Quarterly report pursuant to Section 13 or 15(d)

Debt - Senior Notes and Senior Credit Facility (Details)

v3.22.2.2
Debt - Senior Notes and Senior Credit Facility (Details)
$ in Millions
9 Months Ended
Oct. 15, 2021
USD ($)
Dec. 18, 2020
USD ($)
Oct. 15, 2020
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]            
Outstanding principal       $ 3,818    
Fair value of debt       1,348   $ 1,403
Term Loan A | GCI, LLC            
Debt Instrument [Line Items]            
Principal amount $ 250          
Senior Notes            
Debt Instrument [Line Items]            
Fair value of debt       500    
Senior Notes | GCI Liberty Inc            
Debt Instrument [Line Items]            
Outstanding principal   $ 600        
Interest rate (as a percent)   4.75%        
Aggregate unamortized premium       28    
Line of credit            
Debt Instrument [Line Items]            
Outstanding principal       398    
Line of credit | GCI, LLC            
Debt Instrument [Line Items]            
Proceeds from revolving credit facility $ 150          
Amount available for borrowing       397    
Line of credit | Revolving Credit Facility | GCI, LLC            
Debt Instrument [Line Items]            
Outstanding principal       150    
Repayment of debt         $ 275  
Line of credit | Revolving Credit Facility | LIBOR | GCI, LLC            
Debt Instrument [Line Items]            
Interest rate basis     LIBOR      
Line of credit | Revolving Credit Facility | LIBOR | Minimum | GCI, LLC            
Debt Instrument [Line Items]            
Basis spread on variable rate     1.50%      
Line of credit | Revolving Credit Facility | LIBOR | Maximum | GCI, LLC            
Debt Instrument [Line Items]            
Basis spread on variable rate     2.75%      
Line of credit | Revolving Credit Facility | Alternate base rate | GCI, LLC            
Debt Instrument [Line Items]            
Interest rate basis alternate base rate   alternate base rate      
Line of credit | Revolving Credit Facility | Alternate base rate | Minimum | GCI, LLC            
Debt Instrument [Line Items]            
Basis spread on variable rate 0.50%   0.50%      
Line of credit | Revolving Credit Facility | Alternate base rate | Maximum | GCI, LLC            
Debt Instrument [Line Items]            
Basis spread on variable rate 1.75%   1.75%      
Line of credit | Standby Letters of Credit | GCI, LLC            
Debt Instrument [Line Items]            
Outstanding principal       3    
Line of credit | Term Loan B | LIBOR | GCI, LLC            
Debt Instrument [Line Items]            
Interest rate basis     LIBOR      
Basis spread on variable rate     2.75%      
Line of credit | Term Loan B | LIBOR | Minimum | GCI, LLC            
Debt Instrument [Line Items]            
Interest rate (as a percent)     0.75%      
Line of credit | Term Loan B | Alternate base rate | GCI, LLC            
Debt Instrument [Line Items]            
Interest rate basis     alternate base rate      
Basis spread on variable rate     1.75%      
Line of credit | Term Loan A | GCI, LLC            
Debt Instrument [Line Items]            
Outstanding principal       $ 248    
Percentage of original principal amount 0.25%          
Change in percentage of original principal amount 1.25%          
Line of credit | Term Loan A | Minimum | GCI, LLC            
Debt Instrument [Line Items]            
Basis spread on variable rate 2.00%          
Line of credit | Term Loan A | Maximum | GCI, LLC            
Debt Instrument [Line Items]            
Basis spread on variable rate 3.25%          
Line of credit | Term Loan A | LIBOR | GCI, LLC            
Debt Instrument [Line Items]            
Interest rate basis LIBOR          
Line of credit | Term Loan A | Alternate base rate | Minimum | GCI, LLC            
Debt Instrument [Line Items]            
Basis spread on variable rate 1.00%          
Line of credit | Term Loan A | Alternate base rate | Maximum | GCI, LLC            
Debt Instrument [Line Items]            
Basis spread on variable rate 2.25%          
Senior Credit Facility | GCI, LLC            
Debt Instrument [Line Items]            
First lien leverage ratio       4.00    
Revolving Credit Facility | GCI, LLC            
Debt Instrument [Line Items]            
Principal amount $ 550          
Revolving Credit Facility | LIBOR | Minimum            
Debt Instrument [Line Items]            
Basis spread on variable rate 1.50%          
Revolving Credit Facility | LIBOR | Maximum            
Debt Instrument [Line Items]            
Basis spread on variable rate 2.75%          
Standby Letters of Credit | GCI, LLC            
Debt Instrument [Line Items]            
Principal amount $ 25          
Term Loan B | GCI, LLC            
Debt Instrument [Line Items]            
Repayment of debt $ 400          
Wells Fargo Notes Payable | GCI Liberty Inc            
Debt Instrument [Line Items]            
Outstanding principal   $ 6        
Wells Fargo Notes Payable | LIBOR | GCI Liberty Inc            
Debt Instrument [Line Items]            
Interest rate basis   LIBOR        
Basis spread on variable rate   2.25%