Quarterly report pursuant to Section 13 or 15(d)

Business & Basis of Presentation (Details)

v3.21.2
Business & Basis of Presentation (Details)
subscriber in Millions, $ in Millions
3 Months Ended 6 Months Ended
Oct. 16, 2020
USD ($)
Jun. 16, 2020
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
segment
satellite_radio_system
subscriber
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Feb. 10, 2020
USD ($)
Related Party Transaction [Line Items]                
Number of reportable segments | segment         2      
Number of satellite radio systems | satellite_radio_system         2      
Impairment, restructuring and acquisition costs     $ (136) $ 24 $ 108 $ 24    
Disposal Group, Not Discontinued Operations | Automatic Labs Inc                
Related Party Transaction [Line Items]                
Impairment, restructuring and acquisition costs       $ 24   $ 24    
Simplecast                
Related Party Transaction [Line Items]                
Payments to acquire businesses, gross   $ 28            
Stitcher                
Related Party Transaction [Line Items]                
Payments to acquire businesses, gross $ 266              
Consideration for acquisition 302              
Contingent consideration, liability $ 36              
Contingent consideration potential additional payments     $ 49   $ 49      
Sirius XM Canada | Equity Method Investee                
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%      
Equity method investments     $ 349   $ 349   $ 332  
SoundCloud Holdings, LLC                
Related Party Transaction [Line Items]                
Equity method investments               $ 75
Liberty Media | Management | Common Stock                
Related Party Transaction [Line Items]                
Related party ownership percentage     78.00%   78.00%      
Sirius XM                
Related Party Transaction [Line Items]                
Number of subscribers | subscriber         34.5      
Pandora                
Related Party Transaction [Line Items]                
Number of subscribers | subscriber         6.6