Annual report pursuant to Section 13 and 15(d)

Sirius XM Transactions (Details)

v3.6.0.2
Sirius XM Transactions (Details)
 1 Months Ended 12 Months Ended
Dec. 31, 2016
Oct. 09, 2013
USD ($)
shares
Aug. 31, 2008
USD ($)
$ / shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2014
USD ($)
shares
Dec. 31, 2013
USD ($)
shares
Business Acquisition [Line Items]              
Stock Repurchased and Retired During Period, Shares | shares       0 9,200,000 0  
Payments for Repurchase of Common Stock         $ 350,000,000    
Sirius XM 7% Exchangeable Senior Subordinated Notes due 2014              
Business Acquisition [Line Items]              
Debt face amount     $ 550,000,000        
Debt Instrument, Interest Rate, Stated Percentage     7.00%        
Debt Instrument, Convertible, Conversion Ratio     543.1372        
Debt instrument, face amount per debenture     $ 1,000        
conversion price for exchangeable debt | $ / shares     $ 1.841        
Debt Conversion, Converted Instrument, Amount           $ 502,000,000  
SIRIUS XM              
Business Acquisition [Line Items]              
Ownership percentage 67.00%            
SIRIUS XM | Sirius XM 7% Exchangeable Senior Subordinated Notes due 2014              
Business Acquisition [Line Items]              
Debt Conversion of a Consolidated Subsidiary, Shares received upon maturity of exchangeable note | shares           5,974,510  
SIRIUS XM              
Business Acquisition [Line Items]              
Stock Repurchased and Retired During Period, Shares | shares       420,100,000 524,200,000 423,000,000  
Payments for Repurchase of Common Stock       $ 1,700,000,000 $ 2,000,000,000 $ 1,400,000,000  
SIRIUS XM | Sirius XM 7% Exchangeable Senior Subordinated Notes due 2014              
Business Acquisition [Line Items]              
Debt Conversion, Converted Instrument, Shares Issued | shares           272,855,859  
SIRIUS XM | Sirius XM Liberty Repurchase Agreement              
Business Acquisition [Line Items]              
Stock Repurchased and Retired During Period, Shares | shares   136,600,000         43,700,000
Payments for Repurchase of Common Stock   $ 500,000,000       $ 340,000,000 $ 160,000,000
SIRIUS XM | SIRIUS XM Accelerated Liberty Share Repurchase Agreements [member]              
Business Acquisition [Line Items]              
Stock Repurchased and Retired During Period, Shares | shares           223,200,000  
Payments for Repurchase of Common Stock           $ 756,000,000