Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details)

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Income Taxes (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Deferred Income Taxes and Tax Credits [Abstract]      
Net operating and capital loss carryforwards $ 1,795 $ 2,119  
Accrued stock compensation 140 127  
Other accrued liabilities 76 88  
Deferred revenue 729 678  
Other future deductible amounts 7 10  
Deferred tax assets 2,747 3,022  
Valuation allowance (49) (5)  
Net deferred tax assets 2,698 3,017  
Investments 67 229  
Intangible assets 3,955 3,991  
Discount on debt 30    
Other 313 304  
Deferred tax liabilities 4,365 4,524  
Net deferred tax liabilities 1,667 1,507  
Valuation Allowances and Reserves, Period Increase (Decrease) 44    
Excess Tax Benefits From Share Based Compensation Deductions 191    
Deferred Tax Assets Operating Loss Carryforwards Excess Share Based Compensation Deductions 286    
Income Tax Uncertainties [Abstract]      
Unrecognized Tax Benefits, Beginning Balance 2 30 $ 29
Reduction for tax positions of prior years   (11)  
Lapse in the statute of limitations   (17)  
Increase in tax positions from prior years 252    
Increase in tax positions from acquisition     1
Unrecognized Tax Benefits, Ending Balance 254 $ 2 $ 30
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions 252    
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 184    
Unrecognized Tax Benefits Allowance 254    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 0    
Parent Company      
Deferred Income Taxes and Tax Credits [Abstract]      
Net operating and capital loss carryforwards 33    
Operating Loss Carryforwards 95    
Deferred Tax Assets, Operating Loss Carryforwards, State and Local 4    
SIRIUS XM      
Deferred Income Taxes and Tax Credits [Abstract]      
Net operating and capital loss carryforwards 1,610    
Operating Loss Carryforwards 4,600    
Deferred Tax Assets, Operating Loss Carryforwards, State and Local $ 148