Quarterly report pursuant to Section 13 or 15(d)

Debt - Senior Notes and Senior Credit Facility (Details)

v3.23.1
Debt - Senior Notes and Senior Credit Facility (Details) - USD ($)
$ in Millions
Oct. 15, 2021
Dec. 18, 2020
Mar. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]        
Outstanding principal     $ 3,668  
Fair value of debt     2 $ 1,373
Fair value of debt     1,251 0
Term Loan A | GCI, LLC        
Debt Instrument [Line Items]        
Principal amount $ 250      
Senior Notes        
Debt Instrument [Line Items]        
Fair value of debt     522  
Senior Notes | GCI Liberty Inc        
Debt Instrument [Line Items]        
Outstanding principal   $ 600    
Interest rate (as a percent)   4.75%    
Aggregate unamortized premium     26  
Line of credit        
Debt Instrument [Line Items]        
Outstanding principal     396  
Line of credit | GCI, LLC        
Debt Instrument [Line Items]        
Amount available for borrowing     397  
Line of credit | Revolving Credit Facility | GCI, LLC        
Debt Instrument [Line Items]        
Outstanding principal     150  
Line of credit | Revolving Credit Facility | Alternate base rate | GCI, LLC        
Debt Instrument [Line Items]        
Interest rate basis 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%      
Line of credit | Revolving Credit Facility | Alternate base rate | Maximum | GCI, LLC        
Debt Instrument [Line Items]        
Basis spread on variable rate 1.75%      
Line of credit | Standby Letters of Credit | GCI, LLC        
Debt Instrument [Line Items]        
Outstanding principal     3  
Line of credit | Term Loan A | GCI, LLC        
Debt Instrument [Line Items]        
Outstanding principal     246  
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      
Wells Fargo Notes Payable | GCI Liberty Inc        
Debt Instrument [Line Items]        
Outstanding principal   $ 6 $ 5 $ 5
Wells Fargo Notes Payable | LIBOR | GCI Liberty Inc        
Debt Instrument [Line Items]        
Interest rate basis   LIBOR    
Basis spread on variable rate   2.25%