Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method - Sirius XM Canada (Details)

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Investments In Affiliates Accounted For Using The Equity Method - Sirius XM Canada (Details)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended
May 12, 2016
USD ($)
shares
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
May 12, 2016
CAD / shares
May 12, 2016
$ / shares
Schedule of Equity Method Investments [Line Items]            
Gain (Loss) On Dilution Of Investment In Affiliate   $ 2 $ (2)      
Deferred revenue   2,466   $ 1,877    
SIRIUS XM            
Schedule of Equity Method Investments [Line Items]            
Due to Related Parties, Current   3        
Due to Related Parties, Noncurrent   7        
Due from Related Parties, Current   $ 7        
Sirius XM Canada            
Schedule of Equity Method Investments [Line Items]            
Dividends     4      
SIRIUS XM | Sirius XM Canada | Minimum            
Schedule of Equity Method Investments [Line Items]            
Royalty rate   10.00%        
SIRIUS XM | Sirius XM Canada | Maximum            
Schedule of Equity Method Investments [Line Items]            
Royalty rate   15.00%        
SIRIUS XM | Sirius XM Canada            
Schedule of Equity Method Investments [Line Items]            
Revenue from Related Parties   $ 12 $ 10      
Equity Method Investment Equity Interest Issued or Issuable Value of Cash Shares or Exchangeable Security | (per share)         CAD 4.50 $ 3.50
Equity Method Investment, Ownership Percentage         70.00% 70.00%
Equity Method Investment Voting Interest 33.00%          
Payments to Acquire Equity Method Investments $ 275          
SIRIUS XM | Sirius XM Canada | Maximum            
Schedule of Equity Method Investments [Line Items]            
Sale of Stock, Number of Shares Issued in Transaction | shares 35          
Equity Method Investment Maximum Percentage of Consideration Issuable in Equity 50.00%