XML 48 R33.htm IDEA: XBRL DOCUMENT v3.20.4
REVENUE RECOGNITION - Remaining Performance Obligation (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation, amount $ 365
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 36 months