Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Details)

v3.21.2
Related Party Transactions - Additional Information (Details)
$ / shares in Units, $ / shares in Units, shares in Millions, $ in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
director
executive
$ / shares
shares
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
director
executive
$ / shares
shares
Sep. 30, 2020
USD ($)
Sep. 30, 2021
$ / shares
Dec. 31, 2020
USD ($)
Feb. 29, 2020
USD ($)
ordinary_membership_unit
board_member
Feb. 10, 2020
USD ($)
May 25, 2017
CAD ($)
Related Party Transaction [Line Items]                  
Preferred stock liquidation preference per share (in CAD per share) | $ / shares $ 0.001   $ 0.001            
Income (loss) from equity method investments     $ (11) $ (8)          
SoundCloud Holdings, LLC                  
Related Party Transaction [Line Items]                  
Number of board members | board_member             9    
SoundCloud Holdings, LLC                  
Related Party Transaction [Line Items]                  
Revenue share expense $ 15 $ 13 42 36          
Related party liabilities $ 19   $ 19            
SoundCloud Holdings, LLC                  
Related Party Transaction [Line Items]                  
Equity method investments               $ 75  
Management | Executives | Liberty Media                  
Related Party Transaction [Line Items]                  
Number of related party members on board of directors | executive 3   3            
Management | Director | Liberty Media                  
Related Party Transaction [Line Items]                  
Number of related party members on board of directors | director 1   1            
Equity Method Investee                  
Related Party Transaction [Line Items]                  
Notes receivable, related parties                 $ 131
Income (loss) from equity method investments $ (1) 1 $ (1) (1)          
Equity Method Investee | Maximum                  
Related Party Transaction [Line Items]                  
Proceeds from related party debt     $ 2 11          
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 | Sirius XM Canada                  
Related Party Transaction [Line Items]                  
Equity method investment, equity interest percentage 70.00%   70.00%            
Equity method investment, voting interest percentage 33.00%   33.00%            
Number of preferred shares owned (in shares) | shares 591   591            
Preferred stock liquidation preference per share (in CAD per share) | $ / shares         $ 1        
Notes receivable, related parties $ 121   $ 121     $ 123      
Equity method investments 338   338     $ 332      
Equity method investment, dividends, including reduction of investment 1 1 1 1          
Revenue from related parties $ 25 $ 25 $ 76 $ 73          
Equity Method Investee | SoundCloud Holdings, LLC                  
Related Party Transaction [Line Items]                  
Number of board members appointed | board_member             2    
Equity Method Investee | SoundCloud Holdings, LLC | Series G Membership Units                  
Related Party Transaction [Line Items]                  
Equity method investments             $ 75    
Series G membership unit conversion ratio (ordinary membership unit per series G membership unit) | ordinary_membership_unit             1    
Common Stock | Management | Liberty Media                  
Related Party Transaction [Line Items]                  
Related party ownership percentage 79.00%   79.00%