Annual report pursuant to Section 13 and 15(d)

Tracking Stocks - Reattribution (Details)

v3.20.4
Tracking Stocks - Reattribution (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 22, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Apr. 21, 2020
Dec. 03, 2018
Oct. 17, 2013
Tracking Stocks              
Borrowings of debt   $ 4,898 $ 6,020 $ 3,617      
Liberty SiriusXM Group              
Tracking Stocks              
Reattribution assets $ 2,800            
Reattribution liabilities $ 1,300            
Borrowings of debt   $ 4,149 5,795 2,795      
Liberty SiriusXM Group | Live Nation              
Tracking Stocks              
Percentage ownership   33.00%          
Investment Owned, Balance, Shares 69,600,000            
Liberty SiriusXM Group | Formula One Group              
Tracking Stocks              
Percentage ownership   2.20%          
Investment Owned, Balance, Shares 5,300,000 5,271,475          
Liberty SiriusXM Group | Liberty SiriusXM Group              
Tracking Stocks              
Investment Owned, Balance, Shares 1,900,000            
Liberty SiriusXM Group | Braves Group              
Tracking Stocks              
Percentage ownership   3.70%          
Investment Owned, Balance, Shares 2,300,000 2,292,037          
Formula One Group              
Tracking Stocks              
Reattributed net asset value $ 1,500            
payment for reattribution $ 1,400            
Borrowings of debt   $ 521 129 $ 699      
Formula One Group | Liberty SiriusXM Group              
Tracking Stocks              
Investment Owned, Balance, Shares         1,945,491    
Formula One Group | Braves Group              
Tracking Stocks              
Percentage ownership   11.10%          
Investment Owned, Balance, Shares   6,792,903     9,084,940    
Call Option | Formula One Group | Live Nation              
Tracking Stocks              
Investment Owned, Balance, Shares 34,800,000            
Intergroup Note | Liberty SiriusXM Group              
Tracking Stocks              
Long term debt $ 750            
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%          
Long term debt   $ 1,251          
1.375% Cash Convertible Senior Notes Due 2023 | Formula One Group              
Tracking Stocks              
Debt instrument interest rate (as a percent)   1.375%          
Long term debt     1,322        
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%          
Long term debt   $ 475          
2.25% Exchangeable Senior Debentures due 2048 | Formula One Group              
Tracking Stocks              
Debt instrument interest rate (as a percent)   2.25%          
Long term debt     459        
Sirius XM Holdings Margin Loan | Liberty SiriusXM Group              
Tracking Stocks              
Borrowings of debt $ 400            
Long term debt $ 750 $ 750 $ 350        
Formula 1 | Liberty SiriusXM Group              
Tracking Stocks              
Percentage ownership     0.20%        
Investment Owned, Balance, Shares     493,278