Annual report pursuant to Section 13 and 15(d)

Earnings per Share - Additional Information (Details)

v3.20.4
Earnings per Share - Additional Information (Details) - shares
12 Months Ended
Feb. 01, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Business Acquisition [Line Items]        
Participating securities (in shares)   0 0 0
Anti-dilutive common stock equivalents (in shares)   62,000,000 66,000,000 40,000,000
Common Stock | Pandora        
Business Acquisition [Line Items]        
Common stock issued (in shares) 392,000,000 392,000,000