XML 56 R45.htm IDEA: XBRL DOCUMENT v3.21.2
Revenue Recognition (Remaining Performance Obligations) (Details)
$ in Billions
Jun. 30, 2021
USD ($)
Revenue from Contract with Customer [Abstract]  
Transaction price allocated to remaining performance obligations $ 24
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Percentage of remaining performance obligation 50.00%
Estimated timing of recognition of performance obligation 5 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-07-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Percentage of remaining performance obligation 50.00%
Estimated timing of recognition of performance obligation