Quarterly report pursuant to Section 13 or 15(d)

Investments In Affiliates Accounted For Using The Equity Method (Details)

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Investments In Affiliates Accounted For Using The Equity Method (Details)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
May 12, 2016
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
May 12, 2016
CAD / shares
SIRIUS XM            
Schedule of Equity Method Investments [Line Items]            
Due to Related Parties, Current   $ 3   $ 3    
Due to Related Parties, Noncurrent   9   9    
Due from Related Parties, Current   5   $ 5    
Sirius XM Canada            
Schedule of Equity Method Investments [Line Items]            
Dividends   $ 4 $ 4      
SIRIUS XM | Sirius XM Canada | Minimum            
Schedule of Equity Method Investments [Line Items]            
Royalty rate   10.00%   10.00%    
SIRIUS XM | Sirius XM Canada | Maximum            
Schedule of Equity Method Investments [Line Items]            
Royalty rate   15.00%   15.00%    
SIRIUS XM | Sirius XM Canada            
Schedule of Equity Method Investments [Line Items]            
Payments to Acquire Equity Method Investments $ 275          
Revenue from Related Parties   $ 11 $ 13 $ 21 $ 26  
Dividends       $ 8 $ 8  
Equity Method Investment, Ownership Percentage 70.00%         70.00%
Equity Method Investment Voting Interest 33.00%          
EquityMethodInvestmentEquity Interest Issued or Issuable Value of Cash Shares or Exchangeable Security | (per share) $ 3.50         CAD 4.50
SIRIUS XM | Sirius XM Canada | Maximum            
Schedule of Equity Method Investments [Line Items]            
Equity Method Investment Maximum Percentage of Consideration Issuable in Equity 50.00%          
Sale of Stock, Number of Shares Issued in Transaction | shares 35