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RESTRUCTURING ACTIVITIES (Pre-Tax Restructuring and Integration Charges) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Restructuring and Related Activities [Abstract]        
Employee separation costs $ 4 $ 2 $ 15 $ 5
Facility-related costs 3 1 4 1
Total restructuring charges $ 7 $ 3 $ 19 $ 6