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Deferred Revenue and Performance Obligations (Details) - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Revenue from Contract with Customer [Abstract]    
Deferred revenue recognized $ 1.6 $ 1.1
Remaining non-cancelable performance obligations $ 6.6  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]    
Performance obligations expected to be satisfied (percent) 50.00%  
Remaining performance obligation, expected timing of satisfaction, period 12 months