Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - SIRIUS XM Holdings (Details)

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Stock-Based Compensation - SIRIUS XM Holdings (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Stock-Based Compensation      
Stock-based compensation expense $ 256 $ 261 $ 312
Total unrecognized compensation cost related to unvested equity awards $ 49    
Weighted average period of recognition related to unvested equity awards (in years) 1 year 7 months 6 days    
Sirius XM Holdings      
Stock-Based Compensation      
Stock-based compensation expense $ 202 $ 223 229
Sirius XM Holdings | Pandora      
Stock-Based Compensation      
Stock-based compensation expense     $ 21
Sirius XM Holdings | Employee Stock Option      
Stock-Based Compensation      
Term of option 10 years    
Weighted average volatility rate 33.00% 28.00% 26.00%
Granted 54    
Granted, WAEP $ 6.14    
Weighted average GDFV $ 1.77    
Outstanding options 161    
Exercisable options 101    
Outstanding WAEP $ 5.47    
Exercisable WAEP $ 5.01    
Aggregate intrinsic value, outstanding $ 156    
Aggregate intrinsic value, exercisable 144    
Total unrecognized compensation cost related to unvested equity awards $ 455    
Weighted average period of recognition related to unvested equity awards (in years) 2 years 6 months    
Sirius XM Holdings | Employee Stock Option | Minimum      
Stock-Based Compensation      
Vesting period 3 years    
Sirius XM Holdings | Employee Stock Option | Maximum      
Stock-Based Compensation      
Vesting period 4 years    
Sirius XM Holdings | Restricted Stock      
Stock-Based Compensation      
RSUs granted 40    
RSUs GDFV $ 6.35