Quarterly report pursuant to Section 13 or 15(d)

Tracking Stocks - Additional Information (Details)

v3.20.2
Tracking Stocks - Additional Information (Details)
$ / shares in Units, $ in Millions
9 Months Ended
Oct. 06, 2020
$ / shares
Jun. 05, 2020
USD ($)
shares
May 18, 2020
$ / shares
shares
Sep. 30, 2020
USD ($)
$ / shares
shares
Apr. 22, 2020
$ / shares
shares
Apr. 21, 2020
shares
Dec. 31, 2019
USD ($)
$ / shares
Nov. 26, 2019
Sep. 30, 2019
Dec. 31, 2018
Mar. 06, 2018
Jan. 23, 2017
Aug. 17, 2016
Oct. 17, 2013
Tracking Stocks                            
Cash and cash equivalents | $       $ 1,936     $ 1,222              
Proceeds from issuance of stock | $   $ 754   754                    
Liberty SiriusXM Group                            
Tracking Stocks                            
Cash and cash equivalents | $       137                    
Proceeds from issuance of stock | $       $ 754                    
Liberty SiriusXM Group | Braves Group                            
Tracking Stocks                            
Investment Owned, Balance, Shares | shares       2,292,037 2,300,000                  
Percentage ownership       3.80%                    
Liberty SiriusXM Group | Formula One Group                            
Tracking Stocks                            
Investment Owned, Balance, Shares | shares         5,300,000                  
Liberty SiriusXM Group | Common Class A                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       $ 0.01 $ 0.01   $ 0.01              
Liberty SiriusXM Group | Common Class B                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       0.01 0.01   0.01              
Liberty SiriusXM Group | Common Class C                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       $ 0.01 $ 0.01   0.01              
Rights offering shares distributed per share held | shares     0.0939                      
Stock subscription price | $ / shares     $ 25.47                      
Percentage discount on stock subscriptions     20                      
Rights offering trading period     3 days                      
Rights offering shares issued | shares   29,594,089                        
Braves Group                            
Tracking Stocks                            
Cash and cash equivalents | $       $ 213                    
Braves Group | Common Class A                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       $ 0.01     0.01              
Braves Group | Common Class B                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       0.01     0.01              
Braves Group | Common Class C                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       $ 0.01     0.01              
Formula One Group                            
Tracking Stocks                            
Cash and cash equivalents | $       $ 1,586                    
Formula One Group | Braves Group                            
Tracking Stocks                            
Investment Owned, Balance, Shares | shares       6,792,903   9,084,940                
Percentage ownership       11.30%                    
Formula One Group | Common Class A                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       $ 0.01     0.01              
Formula One Group | Common Class B                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       0.01     0.01              
Formula One Group | Common Class C                            
Tracking Stocks                            
Common stock, par or stated value per share | $ / shares       $ 0.01     $ 0.01              
2.125% Exchangeable Senior Debentures Due 2048 | Liberty SiriusXM Group                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)       2.125%             2.125%      
2.75% Exchangeable Senior Debentures Due 2049 | Liberty SiriusXM Group                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)       2.75%       2.75%            
1.375% Cash Convertible Senior Notes Due 2023                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)                           1.375%
1.375% Cash Convertible Senior Notes Due 2023 | Liberty SiriusXM Group                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)       1.375% 1.375%                  
1.375% Cash Convertible Senior Notes Due 2023 | Formula One Group                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)             1.375%             1.375%
1% Cash Convertible Notes Due 2023 | Formula One Group                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)       1.00%         1.00%     1.00%    
2.25% Exchangeable Senior Debentures due 2046 | Formula One Group                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)       2.25%                 2.25%  
2.25% Exchangeable Senior Debentures due 2048                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)                   2.25%        
2.25% Exchangeable Senior Debentures due 2048 | Liberty SiriusXM Group                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)       2.25% 2.25%                  
2.25% Exchangeable Senior Debentures due 2048 | Formula One Group                            
Tracking Stocks                            
Debt instrument interest rate (as a percent)             2.25%     2.25%        
Sirius XM Holdings                            
Tracking Stocks                            
Payments of Dividends | $       $ 175                    
Dividend paid to parent company | $       $ 126                    
Common Stock, Dividends, Per Share, Declared | $ / shares $ 0.014641                          
Sirius XM Holdings | Formula One Group                            
Tracking Stocks                            
Investment Owned, Balance, Shares | shares       5,271,475                    
Percentage ownership       2.20%                    
Sirius XM Holdings | Liberty SiriusXM Group                            
Tracking Stocks                            
Cash and cash equivalents | $       $ 33                    
Formula 1 | Formula One Group                            
Tracking Stocks                            
Cash and cash equivalents | $       139                    
Braves Holdings | Braves Group                            
Tracking Stocks                            
Cash and cash equivalents | $       $ 136