Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - Liberty Media, Sirius XM Canada, Pandora - Additional Information (Details)

v3.19.3.a.u2
Related Party Transactions - Liberty Media, Sirius XM Canada, Pandora - Additional Information (Details)
$ / shares in Units, $ / shares in Units, shares in Millions, $ in Millions, $ in Millions
12 Months Ended
May 25, 2017
CAD ($)
Dec. 31, 2019
USD ($)
director
executive
$ / shares
shares
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2019
$ / shares
Related Party Transaction [Line Items]          
Preferred stock liquidation preference per share (in dollars per share) | $ / shares   $ 0.001      
Common Stock          
Related Party Transaction [Line Items]          
Shares issued in purchase | shares       35  
Pandora          
Related Party Transaction [Line Items]          
Pandora investment   $ 0 $ 523    
Management | Liberty Media | Executives          
Related Party Transaction [Line Items]          
Number of related party members on board of directors | executive   1,000      
Management | Liberty Media | Senior Advisor          
Related Party Transaction [Line Items]          
Number of related party members on board of directors | executive   1,000      
Management | Liberty Media | Director          
Related Party Transaction [Line Items]          
Number of related party members on board of directors | director   1,000      
Management | Liberty Media | Common Stock          
Related Party Transaction [Line Items]          
Related party ownership percentage   72.00%      
Equity Method Investee          
Related Party Transaction [Line Items]          
Notes receivable, related parties $ 131        
Proceeds from related party debt     3    
Equity Method Investee | Services Agreement          
Related Party Transaction [Line Items]          
Period of agreement 30 years        
Equity Method Investee | Services Agreement, Years 1 Through 5          
Related Party Transaction [Line Items]          
Payments receivable, percentage of gross revenue 25.00%        
Equity Method Investee | Advisory Services Agreement          
Related Party Transaction [Line Items]          
Period of agreement 30 years        
Payments receivable, percentage of gross revenue 5.00%        
Equity Method Investee | Common Stock          
Related Party Transaction [Line Items]          
Shares issued in purchase | shares       35  
Equity Method Investee | Sirius XM Canada          
Related Party Transaction [Line Items]          
Equity method investment, equity interest percentage   70.00%      
Equity method investment, voting interest percentage   33.00%      
Consideration transferred       $ 309  
Payments to acquire equity method investments       130  
Equity interests issued and issuable       179  
Number of preferred shares owned | shares   591      
Preferred stock liquidation preference per share (in dollars per share) | $ / shares         $ 1
Notes receivable, related parties   $ 131 126    
Equity method investments   321 311    
Revenue from related parties   98 97 87  
Maximum | Equity Method Investee          
Related Party Transaction [Line Items]          
Proceeds from related party debt   1      
Maximum | Equity Method Investee | Sirius XM Canada          
Related Party Transaction [Line Items]          
Equity method investment, dividends, including reduction of investment   2 2 $ 4  
Fair Value, Inputs, Level 2 | Pandora          
Related Party Transaction [Line Items]          
Pandora investment   $ 0 $ 523