Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - SIRIUS XM (Details)

v3.7.0.1
Stock-Based Compensation - SIRIUS XM (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Weighted average period of recognition related to unvested equity awards (in years)     2 years 1 month 6 days  
Stock-based compensation $ 53 $ 34 $ 97 $ 68
Total unrecognized compensation cost related to unvested equity awards $ 43   $ 43  
SIRIUS XM        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Outstanding options 311   311  
Exercisable options 22   22  
Outstanding WAEP $ 3.56   $ 3.56  
Exercisable WAEP $ 2.91   $ 2.91  
Outstanding options, aggregate intrinsic value $ 594   $ 594  
Exercisable Options, Aggregate Intrinsic Value 291   $ 291  
Weighted average period of recognition related to unvested equity awards (in years)     2 years 2 months 12 days  
Stock-based compensation 30 $ 24 $ 59 $ 48
Total unrecognized compensation cost related to unvested equity awards $ 231   $ 231  
SIRIUS XM | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Restricted stock granted     30  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 4.07