Quarterly report pursuant to Section 13 or 15(d)

Goodwill (Details)

v3.21.1
Goodwill (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2021
USD ($)
reporting_unit
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Oct. 16, 2020
USD ($)
Dec. 31, 2018
USD ($)
Business Acquisition [Line Items]          
Number of reporting units | reporting_unit 2        
Goodwill $ 3,128,000,000   $ 3,122,000,000    
Goodwill, impairment loss 0 $ 0      
Accumulated impairment of goodwill since the merger 5,722,000,000        
Stitcher          
Business Acquisition [Line Items]          
Goodwill       $ 224,000,000  
Goodwill, purchase accounting adjustments 6,000,000        
Sirius XM          
Business Acquisition [Line Items]          
Goodwill 2,290,000,000   2,290,000,000    
Accumulated impairment of goodwill since the merger         $ 4,766,000,000
Pandora          
Business Acquisition [Line Items]          
Goodwill $ 838,000,000   832,000,000    
Goodwill, impairment loss     $ 956,000,000