Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Common Stock (Details)

v3.19.2
Stockholders' Equity - Common Stock (Details) - $ / shares
Feb. 01, 2019
Jun. 30, 2019
Dec. 31, 2018
Business Acquisition [Line Items]      
Common stock, par value (in dollars per share)   $ 0.001 $ 0.001
Common stock, shares authorized (in shares)   9,000,000,000 9,000,000,000
Common stock, shares issued (in shares)   4,497,000,000 4,346,000,000
Common stock, shares outstanding (in shares)   4,492,000,000 4,346,000,000
Common stock reserved for issuance (in shares)   325,000,000  
Pandora      
Business Acquisition [Line Items]      
Common stock, par value (in dollars per share) $ 0.001    
Common Stock | Pandora      
Business Acquisition [Line Items]      
Common stock issued (in shares) 392,000,000