Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Details)

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Commitments And Contingencies (Details)
€ in Millions, $ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended
Apr. 05, 2016
USD ($)
Jun. 30, 2015
USD ($)
Aug. 31, 2013
USD ($)
Sep. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2016
USD ($)
Jan. 17, 2013
EUR (€)
Jun. 25, 2012
EUR (€)
Loss Contingencies [Line Items]                  
Legal settlement, net             $ 511    
Compensation guarantee aggregate total       $ 223     223    
Amounts payable under guarantee in 2016       4     4    
Amounts payable under guarantee in 2017       74     74    
Amounts payable under guarantee in 2018       68     68    
Amounts payable under guarantee in 2019       33     33    
Amount payable under guarantee, thereafter       44     44    
Vivendi Universal SA Suit [Member]                  
Loss Contingencies [Line Items]                  
Litigation Settlement, Amount         $ 775        
Legal settlement, net         $ 511        
Telephone Consumer Protection Act Of 1991 Lawsuit [Member] | SIRIUS XM                  
Loss Contingencies [Line Items]                  
Litigation Settlement, Amount $ 35                
Capitol Records Case [Member] | SIRIUS XM                  
Loss Contingencies [Line Items]                  
Litigation Settlement, Amount   $ 210              
Percentage of pre-1972 recordings owned or controlled by the plaintiffs   85.00%              
Litigation Settlement, Expense   $ 108              
Deferred litigation settlement expense             53    
Deferred litigation settlement expense, current             10    
Deferred litigation settlement expense, noncurrent             43    
Capitol Records Case [Member] | SIRIUS XM | Revenue Share And Royalties                  
Loss Contingencies [Line Items]                  
Litigation Settlement, Expense       $ 10   $ 19 $ 30    
Pending Litigation | Vivendi Universal SA Suit [Member]                  
Loss Contingencies [Line Items]                  
Gain Contingency, Unrecorded Amount | €                 € 765
Including prejudgment interest | Pending Litigation | Vivendi Universal SA Suit [Member]                  
Loss Contingencies [Line Items]                  
Gain Contingency, Unrecorded Amount | €               € 945  
Minimum | Pending Litigation | Sound exchange Lawsuit [Member] | SIRIUS XM                  
Loss Contingencies [Line Items]                  
Damages sought     $ 50            
Maximum | Pending Litigation | Sound exchange Lawsuit [Member] | SIRIUS XM                  
Loss Contingencies [Line Items]                  
Damages sought     $ 100