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FAIR VALUE MEASUREMENTS (Reconciliation of Beginning and Ending Balances of Liabilities Unobservable Inputs) (Details) - Level 3 [Member] - Contingent Consideration [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning Balance $ 3 $ 3
Purchases, additions and issuances 6 0
Settlements (2)  
Ending Balance $ 7 $ 3