Quarterly report pursuant to Section 13 or 15(d)

Assets and Liabilities Measured at Fair Value - Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details)

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Assets and Liabilities Measured at Fair Value - Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Assets and liabilities measured at fair value    
Indemnification payment from Liberty Broadband $ 24  
Recurring    
Assets and liabilities measured at fair value    
Cash equivalents 924 $ 938
Indemnification asset 29 50
Debt 319 614
Recurring | Fair Value, Inputs, Level 1    
Assets and liabilities measured at fair value    
Cash equivalents 924 938
Recurring | Significant Other Observable Inputs (Level 2)    
Assets and liabilities measured at fair value    
Indemnification asset 29 50
Debt 319 $ 614
1.75% Exchangeable Senior Debentures due 2046    
Assets and liabilities measured at fair value    
Debt exchanged $ 157  
Interest rate (as a percent) 1.75%  
Indemnification payment from Liberty Broadband $ 24