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REVENUE FROM CONTRACTS WITH CUSTOMERS (Performance Obligations) (Details)
$ in Millions
Dec. 31, 2018
USD ($)
Revenue from Contract with Customer [Abstract]  
Revenue, remaining performance obligation $ 193
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Revenue, remaining performance obligation, expected timing of satisfaction, period 3 years