XML 61 R49.htm IDEA: XBRL DOCUMENT v3.21.2
Revenue Recognition (Performance obligations) (Details)
$ in Millions
Jun. 30, 2021
USD ($)
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation, amount $ 470
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01  
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation, amount $ 294
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, period 6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01  
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation, amount $ 176
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, period 1 year