Quarterly report pursuant to Section 13 or 15(d)

Benefit Plans - Additional Information (Details)

v3.19.2
Benefit Plans - Additional Information (Details)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Feb. 01, 2019
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
$ / shares
shares
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Business Acquisition [Line Items]            
Share-based payment expense   $ 57 $ 36 $ 127 $ 70  
Goodwill   3,852   3,852   $ 2,290
Share-based payment expense       127 70  
Pandora            
Business Acquisition [Line Items]            
Exchange ratio (in shares per share) 1.44          
Goodwill $ 1,562 1,562   $ 1,562    
Employees and Non Employee Stock Option            
Business Acquisition [Line Items]            
Grant date fair value of options (in dollars per share) | $ / shares       $ 1.26    
Options exercised in period, intrinsic value       $ 22 140  
Exercise of options and vesting of restricted stock units (in shares) | shares       2    
Share-based payment expense   15 21 $ 35 40  
Pre-Acquisition Replacement Equity Awards            
Business Acquisition [Line Items]            
Goodwill   8   8    
Restricted Stock Units (RSUs) and Performance Shares            
Business Acquisition [Line Items]            
Share-based payment expense   42 $ 15 92 30  
Restricted stock units vested, intrinsic value       $ 102 $ 23  
Granted (in shares) | shares       12    
Restricted Stock Units (RSUs)            
Business Acquisition [Line Items]            
Exercise of options and vesting of restricted stock units (in shares) | shares       11    
Performance-based Share Awards            
Business Acquisition [Line Items]            
Granted (in shares) | shares       9    
Pre-Acquisition Replacement Equity Awards, Restricted Stock Units            
Business Acquisition [Line Items]            
Goodwill   62   $ 62    
Restricted Stock Units Rsu And Stock Options            
Business Acquisition [Line Items]            
Unrecognized compensation costs   $ 406   $ 406   $ 254
Weighted-average service period (in years)       1 year 10 months 24 days    
Acquisition-related Costs            
Business Acquisition [Line Items]            
Share-based payment expense       $ 21    
Maximum | Restricted Stock Units (RSUs) and Performance Shares            
Business Acquisition [Line Items]            
Restricted stock units granted (in shares) | shares       1