Annual report pursuant to Section 13 and 15(d)

Commitments And Contingencies (Details)

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Commitments And Contingencies (Details)
€ in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Dec. 12, 2017
Mar. 13, 2017
USD ($)
Feb. 29, 2016
USD ($)
Jun. 30, 2015
USD ($)
Aug. 31, 2013
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Jan. 17, 2013
EUR (€)
Jun. 25, 2012
EUR (€)
Loss Contingencies [Line Items]                        
Legal settlement, net                 $ 511,000,000      
Litigation Settlement, Expense               $ 45,000,000 (465,000,000) $ 108,000,000    
Revenue share and royalties               1,210,000,000 1,109,000,000 1,035,000,000    
Operating Leases, Future Minimum Payments Due [Abstract]                        
Operating Leases, Rent Expense               58,000,000 52,000,000 53,000,000    
2018           $ 48,000,000   48,000,000        
2019           50,000,000   50,000,000        
2020           46,000,000   46,000,000        
2021           39,000,000   39,000,000        
2022           32,000,000   32,000,000        
Thereafter           165,000,000   165,000,000        
SIRIUS XM                        
Loss Contingencies [Line Items]                        
Revenue share and royalties           45,000,000 $ 46,000,000     108,000,000    
Estimate of amounts payable for rights to future programming year one           331,000,000   331,000,000        
Estimate of amounts payable for rights to future programming year two           306,000,000   306,000,000        
Estimate of amounts payable for rights to future programming year three           259,000,000   259,000,000        
Estimate of amounts payable for rights to future programming year four           175,000,000   175,000,000        
Estimated Amounts Payable for rights to Future Programming year five           52,000,000   52,000,000        
Vivendi Universal SA Suit [Member]                        
Loss Contingencies [Line Items]                        
Gain Contingency, Unrecorded Amount | €                       € 765
Litigation settlement from other party     $ 775,000,000                  
Legal settlement, net     $ 511,000,000                  
Sound exchange Lawsuit [Member]                        
Loss Contingencies [Line Items]                        
Loss Contingency Underpayment Amount Percent of Royalty Payment 10.00%                      
Telephone Consumer Protection Act Of 1991 Lawsuit [Member]                        
Loss Contingencies [Line Items]                        
Loss Contingency Damages Sought Value Per Willful Violation   $ 1,500                    
Loss Contingency Damages Sought Per Violation   $ 500                    
Capitol Records Case [Member] | SIRIUS XM                        
Loss Contingencies [Line Items]                        
Litigation settlement to other party       $ 210,000,000                
Percentage of pre-1972 recordings owned or controlled by the plaintiffs       85.00%                
Litigation Settlement, Expense       $ 108,000,000                
Capitol Records Case [Member] | SIRIUS XM | Revenue Share And Royalties                        
Loss Contingencies [Line Items]                        
Litigation Settlement, Expense               43,000,000 $ 40,000,000 $ 19,000,000    
Including prejudgment interest | Vivendi Universal SA Suit [Member]                        
Loss Contingencies [Line Items]                        
Gain Contingency, Unrecorded Amount | €                     € 945  
Braves Holdings                        
Loss Contingencies [Line Items]                        
Compensation guarantee aggregate total           234,000,000   234,000,000        
Amounts payable under guarantee in 2018           121,000,000   121,000,000        
Amounts payable under guarantee in 2019           45,000,000   45,000,000        
Amounts payable under guarantee in 2020           32,000,000   32,000,000        
Amounts payable under guarantee in 2021           34,000,000   34,000,000        
Amounts payable under guarantee in 2022           2,000,000   2,000,000        
Amount payable under guarantee, thereafter           $ 0   $ 0        
Lease Term               30 years        
Property, Plant and Equipment, Useful Life               45 years        
Minimum | Pending Litigation | Sound exchange Lawsuit [Member] | SIRIUS XM                        
Loss Contingencies [Line Items]                        
Damages sought         $ 50,000,000              
Maximum | Pending Litigation | Sound exchange Lawsuit [Member] | SIRIUS XM                        
Loss Contingencies [Line Items]                        
Damages sought         $ 100,000,000