Quarterly report pursuant to Section 13 or 15(d)

Investments in Affiliates Accounted for Using the Equity Method (Details 2)

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Investments in Affiliates Accounted for Using the Equity Method (Details 2) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
May. 31, 2013
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Schedule of Equity Method Investments [Line Items]          
Gain (loss) on dilution of investment in affiliate       $ (1) $ (67)
Live Nation          
Schedule of Equity Method Investments [Line Items]          
Equity Method Investment, Ownership Percentage   27.00%   27.00%  
SIRIUS XM          
Schedule of Equity Method Investments [Line Items]          
Due to Related Parties, Current   $ 3   $ 3  
Due to Related Parties, Noncurrent   12   12  
Due from Related Parties, Current   9   $ 9  
Revenue from Related Parties   $ 18 $ 12    
Sirius XM Canada          
Schedule of Equity Method Investments [Line Items]          
Equity Method Investment, Ownership Percentage   37.00%   37.00%  
Dividends   $ 4 5 $ 12 39
Charter Communications          
Schedule of Equity Method Investments [Line Items]          
Purchase of shares in equity method investee 26.9        
Warrants acquired 1.1        
Equity Method Investment, Aggregate Cost $ 2,600        
Equity Method Investment, Ownership Percentage 27.00%        
Price-per-share $ 95.50        
Gain (loss) on dilution of investment in affiliate     $ (11)   (61)
SIRIUS XM          
Schedule of Equity Method Investments [Line Items]          
Revenue from Related Parties       $ 44 $ 36
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%