RESTRUCTURING ACTIVITIES (Pre-Tax Restructuring charges) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 11	$ 39
Invigorate Program [Member]
Restructuring Cost and Reserve [Line Items]
Employee separation costs	9	38	$ 31
Facility-related costs	2	1	12
Asset impairment charges	0	0	1
Total restructuring charges	$ 11	$ 39	$ 44