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REVENUE Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Disaggregation of Revenue [Line Items]      
Accrued sales returns $ 27   $ 29
Accrued sales incentives $ 51   $ 62
Service Revenue [Member]      
Disaggregation of Revenue [Line Items]      
Percent of Total Company Revenue 1.00% 1.00%