Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Details)

v3.21.1
Related Party Transactions - Additional Information (Details)
$ / shares in Units, $ / shares in Units, shares in Millions, $ in Millions, $ in Millions
3 Months Ended
Mar. 31, 2021
USD ($)
executive
director
$ / shares
shares
Mar. 31, 2020
USD ($)
Mar. 31, 2021
$ / shares
Dec. 31, 2020
USD ($)
Feb. 29, 2020
USD ($)
board_member
ordinary_membership_unit
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            
Income (loss) from equity method investments $ (1) $ (2)          
Deferred compensation contributions 3 6          
SoundCloud Holdings, LLC              
Related Party Transaction [Line Items]              
Number of board members | board_member         9    
Maximum              
Related Party Transaction [Line Items]              
Deferred compensation contributions 1 1          
SoundCloud Holdings, LLC              
Related Party Transaction [Line Items]              
Revenue share expense 13 12          
Related party liabilities $ 20            
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 1            
Management | Senior Advisor | Liberty Media              
Related Party Transaction [Line Items]              
Number of related party members on board of directors | executive 1            
Management | Director | Liberty Media              
Related Party Transaction [Line Items]              
Number of related party members on board of directors | director 1            
Equity Method Investee              
Related Party Transaction [Line Items]              
Notes receivable, related parties             $ 131
Equity Method Investee | Maximum              
Related Party Transaction [Line Items]              
Proceeds from related party debt $ 2 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 | Sirius XM Canada              
Related Party Transaction [Line Items]              
Equity method investment, equity interest percentage 70.00%            
Equity method investment, voting interest percentage 33.00%            
Number of preferred shares owned (in shares) | shares 591            
Preferred stock liquidation preference per share (in CAD per share) | $ / shares     $ 1        
Notes receivable, related parties $ 122     $ 123      
Equity method investments 340     $ 332      
Equity method investment, dividends, including reduction of investment 1 1          
Revenue from related parties $ 25 $ 25          
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 | Liberty Media              
Related Party Transaction [Line Items]              
Related party ownership percentage 77.00%            
Common Stock | Management | Liberty Media              
Related Party Transaction [Line Items]              
Related party ownership percentage 77.00%