XML 69 R59.htm IDEA: XBRL DOCUMENT v3.19.1
Deferred Revenue and Performance Obligations - Additional Information (Details)
$ in Billions
Mar. 31, 2019
USD ($)
Revenue from Contract with Customer [Abstract]  
Remaining performance obligations $ 1.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, percentage 50.00%
Expected timing of satisfaction period 12 months