Quarterly report pursuant to Section 13 or 15(d)

Business & Basis of Presentation (Details)

v3.19.1
Business & Basis of Presentation (Details)
subscriber in Millions, active_user in Millions
3 Months Ended
Mar. 31, 2019
active_user
subscriber
segment
satellite_radio_system
Related Party Transaction [Line Items]  
Number of reportable segments | segment 2
Number of satellite radio systems | satellite_radio_system 2
Common Stock | Management | Liberty Media  
Related Party Transaction [Line Items]  
Related party ownership percentage 68.00%
Sirius XM  
Related Party Transaction [Line Items]  
Number of subscribers 34.2
Pandora  
Related Party Transaction [Line Items]  
Number of subscribers 6.9
Number of ad-supported active users | active_user 66.0