XML 46 R34.htm IDEA: XBRL DOCUMENT v3.20.2
Revenue Recognition - Performance Obligations (Details)
$ in Billions
Sep. 30, 2020
USD ($)
Revenue from Contract with Customer [Abstract]  
Performance obligations expected to be satisfied $ 1.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation, percentage 75.00%
Performance obligations expected to be satisfied, expected timing 1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Performance obligations expected to be satisfied, expected timing 1 year