v3.19.3.a.u2
Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expense $ 562 $ 640 $ 692
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 4,816 4,654  
Accumulated Amortization (3,922) (3,360)  
Total $ 894 1,294  
Acquired users      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Remaining Useful Lives (in years) 1 year 9 months 18 days    
Gross Carrying Amount $ 2,056 2,056  
Accumulated Amortization (1,550) (1,260)  
Total $ 506 796  
Acquired technology      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Remaining Useful Lives (in years) 2 years 7 months 6 days    
Gross Carrying Amount $ 1,158 1,002  
Accumulated Amortization (986) (871)  
Total $ 172 131  
Acquired patents      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Remaining Useful Lives (in years) 4 years 7 months 6 days    
Gross Carrying Amount $ 805 805  
Accumulated Amortization (625) (565)  
Total $ 180 240  
Trade names      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Remaining Useful Lives (in years) 2 years    
Gross Carrying Amount $ 635 629  
Accumulated Amortization (604) (517)  
Total $ 31 112  
Other      
Finite-Lived Intangible Assets [Line Items]      
Weighted-Average Remaining Useful Lives (in years) 3 years 3 months 18 days    
Gross Carrying Amount $ 162 162  
Accumulated Amortization (157) (147)  
Total $ 5 $ 15