Annual report pursuant to Section 13 and 15(d)

Business & Basis of Presentation (Details)

v3.24.4
Business & Basis of Presentation (Details)
$ / shares in Units, subscriber in Millions, $ in Millions
12 Months Ended
Sep. 09, 2024
$ / shares
Dec. 31, 2024
USD ($)
subscriber
satelliteRadioSystem
segment
$ / shares
Dec. 31, 2023
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
Jun. 16, 2024
Related Party Transaction [Line Items]          
Common stock, par value (in USD per share) | $ / shares $ 0.001 $ 0.001 $ 0.001    
Conversion ratio 0.1 0.10      
Number of reportable segments | segment   2      
Number of operating segments | segment   2      
Number of satellite radio systems | satelliteRadioSystem   2      
Merger related costs | $   $ 15 $ 32    
Acquisition related costs | $   $ 71 $ 16 $ 2  
Pandora          
Related Party Transaction [Line Items]          
Number of subscribers | subscriber   5.8      
Sirius XM Holdings, Inc.          
Related Party Transaction [Line Items]          
Redemption ratio         0.1
Liberty Sirius XM          
Related Party Transaction [Line Items]          
Common stock, par value (in USD per share) | $ / shares $ 0.01        
Redemption ratio 0.8375        
Sirius XM Canada | Equity Method Investee          
Related Party Transaction [Line Items]          
Equity method investment, equity interest percentage   70.00%      
Equity method investment, voting interest percentage   33.00%      
Sirius XM          
Related Party Transaction [Line Items]          
Number of subscribers | subscriber   33.2