Annual report pursuant to Section 13 and 15(d)

Basis of Presentation (Details)

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Basis of Presentation (Details) - USD ($)
$ in Millions
12 Months Ended 84 Months Ended
Jul. 23, 2014
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2019
Jan. 23, 2017
Sep. 07, 2016
Nov. 04, 2014
Basis of Presentation                
Number of shares received in spin-off               0.25
Stock repurchased during period (Shares)       0        
Payments for Repurchase of Common Stock   $ 443 $ 466          
Qurate Retail, Liberty TripAdvisor, Liberty Broadband, Expedia Holdings and GCI Liberty                
Basis of Presentation                
Related Party Transaction, Amounts of Transaction   46 $ 30 $ 24        
Starz                
Basis of Presentation                
Related Party Transaction, Amounts of Transaction   $ 4            
Common Class C | Liberty Media Corporation                
Basis of Presentation                
Number of shares issued during the period for each share of Series A and Series B stock held by shareholders prior to the distribution 2              
Sirius XM Holdings                
Basis of Presentation                
Stock repurchased during period (Shares)         3,000,000,000.0      
Payments for Repurchase of Common Stock         $ 12,800      
Ownership Interest In Investee   72.00%     72.00%      
Delta Topco                
Basis of Presentation                
Interest acquired (as a percent)           100.00% 20.00%