Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Narrative (Details)

v3.7.0.1
Long-Term Debt - Narrative (Details)
3 Months Ended 12 Months Ended
Jan. 23, 2017
USD ($)
$ / shares
Jan. 20, 2017
USD ($)
Nov. 08, 2016
USD ($)
Nov. 06, 2016
Oct. 31, 2016
USD ($)
Aug. 17, 2016
USD ($)
$ / shares
shares
Jun. 16, 2016
$ / shares
shares
Apr. 15, 2016
shares
Apr. 14, 2016
USD ($)
$ / shares
Mar. 31, 2017
USD ($)
$ / shares
shares
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Oct. 17, 2013
USD ($)
Debt Instrument [Line Items]                          
Long-term Debt                   $ 13,354,000,000   $ 8,018,000,000  
Borrowings of debt                   1,844,000,000 $ 335,000,000    
Repayments of Long-term Debt                   $ 1,154,000,000 111,000,000    
Sirius XM Senior Secured Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Debt instrument, unused borrowing capacity, fee, percent                   0.25%      
Line of Credit Facility, Remaining Borrowing Capacity                   $ 1,220,000,000      
A1.375 Cash Convertible Senior Notes Due 2023                          
Debt Instrument [Line Items]                          
Debt face amount                         $ 1,000,000,000
Debt Instrument, Interest Rate, Stated Percentage                         1.375%
Debt instrument interest rate                         1.375%
$750 million term loan due Oct 2018                          
Debt Instrument [Line Items]                          
Debt face amount         $ 250,000,000                
Effective interest rate                   2.75%      
Line of Credit Facility, Maximum Borrowing Capacity         $ 500,000,000                
$750 million term loan due Oct 2018 | Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Line of Credit Facility, Remaining Borrowing Capacity                   $ 500,000,000,000      
Sirius XM Senior Secured Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Effective interest rate                   2.63%      
Liberty 1% Cash Convertible Notes Due 2023                          
Debt Instrument [Line Items]                          
Debt face amount $ 450,000,000                        
Debt Instrument, Interest Rate, Stated Percentage 1.00%                        
Debt instrument, face amount per debenture $ 1,000                        
Borrowings of debt $ 450,000,000                        
Debt instrument interest rate 1.00%                        
Live Nation Margin Loan                          
Debt Instrument [Line Items]                          
Debt face amount     $ 500,000,000                    
Borrowings of debt   $ 350,000,000                   0  
Debt Instrument, Description of Variable Rate Basis       LIBOR                  
Debt Instrument, Basis Spread on Variable Rate     2.25%                    
Effective interest rate                   3.28%      
Debt instrument, unused borrowing capacity, fee, percent     0.75%                    
Line of Credit Facility, Remaining Borrowing Capacity                   $ 150,000,000      
Debt Instrument, Term     2 years                    
Line of Credit Facility, Maximum Borrowing Capacity     $ 500,000,000                    
SIRIUS XM | $750 million margin loan due 2018                          
Debt Instrument [Line Items]                          
Shares Pledged As Collateral Under Loan | shares                   1,138,400,000      
Share value                   $ 5,863,000,000      
Live Nation | Live Nation Margin Loan                          
Debt Instrument [Line Items]                          
Shares Pledged As Collateral Under Loan | shares                   53,700,000      
Share value                   $ 1,632,000,000      
Formula 1                          
Debt Instrument [Line Items]                          
Consideration payable $ 400,000,000                        
Formula 1 | Liberty 1% Cash Convertible Notes Due 2023                          
Debt Instrument [Line Items]                          
Consideration payable $ 400,000,000                        
Viacom, Inc. | Live Nation Margin Loan                          
Debt Instrument [Line Items]                          
Shares Pledged As Collateral Under Loan | shares                   1,900,000      
Share value                   $ 86,000,000      
SIRIUS XM | Sirius XM Senior Secured Revolving Credit Facility | Sirius XM Senior Secured Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Line of Credit Facility, Maximum Borrowing Capacity                   $ 1,750,000,000      
Common Class A | 1.375% Convertible Notes Bond Hedge Transaction                          
Debt Instrument [Line Items]                          
Securities Basket price per share | $ / shares                   $ 49.70      
Common Class A | Warrant transaction                          
Debt Instrument [Line Items]                          
Securities Basket price per share | $ / shares                   $ 49.70      
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares             $ 61.16            
Liberty Media Corporation | A1.375 Cash Convertible Senior Notes Due 2023                          
Debt Instrument [Line Items]                          
Debt instrument, face amount per debenture                 $ 1,000        
Liberty Media Corporation | $750 million term loan due Oct 2018                          
Debt Instrument [Line Items]                          
Debt Instrument, Description of Variable Rate Basis         LIBOR                
Debt Instrument, Basis Spread on Variable Rate         1.75%                
Debt instrument, unused borrowing capacity, fee, percent         0.75%                
Liberty Media Corporation | 2.25% Exchangeable Senior Debentures due 2046 | Senior Notes                          
Debt Instrument [Line Items]                          
Debt face amount           $ 445,000,000              
Debt Instrument, Interest Rate, Stated Percentage           2.25%              
Debt instrument interest rate           2.25%              
Liberty Media Corporation | Time Warner, Inc. | 2.25% Exchangeable Senior Debentures due 2046                          
Debt Instrument [Line Items]                          
Shares underlying the debentures | shares           4,250,000              
Liberty Media Corporation | Time Warner, Inc. | 2.25% Exchangeable Senior Debentures due 2046 | Senior Notes                          
Debt Instrument [Line Items]                          
Exchange Price of Shares Attributable to Debentures | $ / shares           $ 104.55              
Liberty Media Corporation | Common Class A | A1.375 Cash Convertible Senior Notes Due 2023                          
Debt Instrument [Line Items]                          
Debt Instrument, Convertible, Conversion Ratio                 21.0859        
conversion price for exchangeable debt | $ / shares                 $ 47.43        
Liberty Sirius XM Group                          
Debt Instrument [Line Items]                          
Long-term Debt                   $ 6,247,000,000   6,107,000,000  
Number of tracking stock shares received in the Recapitalization for one share of Liberty Media common stock | shares               1          
Borrowings of debt                   330,000,000 330,000,000    
Repayments of Long-term Debt                   194,000,000 72,000,000    
Liberty Sirius XM Group | Sirius XM Senior Secured Revolving Credit Facility                          
Debt Instrument [Line Items]                          
Long-term Debt                   530,000,000   390,000,000  
Liberty Sirius XM Group | Common Class A                          
Debt Instrument [Line Items]                          
Securities basket conversion ratio from shares of Liberty Media Corporation common stock               1.0          
Liberty Sirius XM Group | Common Class A | 1.375% Convertible Notes Bond Hedge Transaction                          
Debt Instrument [Line Items]                          
Forward contract, number of underlying shares | shares               21,085,900          
Liberty Sirius XM Group | Common Class A | Warrant transaction                          
Debt Instrument [Line Items]                          
Class of Warrant or Right, Outstanding | shares               21,085,900          
Braves Group                          
Debt Instrument [Line Items]                          
Long-term Debt                   410,000,000   328,000,000  
Number of tracking stock shares received in the Recapitalization for one share of Liberty Media common stock | shares               0.1          
Borrowings of debt                   114,000,000 5,000,000    
Repayments of Long-term Debt                   32,000,000 38,000,000    
Braves Group | Common Class A                          
Debt Instrument [Line Items]                          
Securities basket conversion ratio from shares of Liberty Media Corporation common stock             0.1087 0.10          
Braves Group | Common Class A | 1.375% Convertible Notes Bond Hedge Transaction                          
Debt Instrument [Line Items]                          
Forward contract, number of underlying shares | shares             2,292,037 2,108,590          
Braves Group | Common Class A | Warrant transaction                          
Debt Instrument [Line Items]                          
Class of Warrant or Right, Outstanding | shares             2,292,037 2,108,590          
Formula One Group                          
Debt Instrument [Line Items]                          
Long-term Debt                   6,697,000,000   $ 1,583,000,000  
Borrowings of debt                   1,400,000,000      
Repayments of Long-term Debt                   $ 928,000,000 $ 1,000,000    
Formula One Group | Common Class A                          
Debt Instrument [Line Items]                          
Securities basket conversion ratio from shares of Liberty Media Corporation common stock               0.25          
Formula One Group | Common Class A | 1.375% Convertible Notes Bond Hedge Transaction                          
Debt Instrument [Line Items]                          
Forward contract, number of underlying shares | shares               5,271,475          
Formula One Group | Common Class A | Warrant transaction                          
Debt Instrument [Line Items]                          
Class of Warrant or Right, Outstanding | shares               5,271,475          
Formula One Group | Common Class C | Liberty 1% Cash Convertible Notes Due 2023                          
Debt Instrument [Line Items]                          
Debt Instrument, Convertible, Conversion Ratio 27.1091                        
conversion price for exchangeable debt | $ / shares $ 36.89                        
Liberty Media Group                          
Debt Instrument [Line Items]                          
Number of tracking stock shares received in the Recapitalization for one share of Liberty Media common stock | shares               0.25