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RESTRUCTURING ACTIVITIES (Narrative) (Details) - Invigorate Program [Member] - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Accounts Payable and Accrued Liabilities [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring reserve $ 10   $ 9
Cost of Revenue [Member]      
Restructuring Cost and Reserve [Line Items]      
Total restructuring charges 2 $ 1  
Selling, General and Administrative Expenses [Member]      
Restructuring Cost and Reserve [Line Items]      
Total restructuring charges $ 1 $ 2