RESTRUCTURING ACTIVITIES (Narrative) (Details) - Invigorate Program [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 3	$ 15	$ 9	$ 36
Accounts Payable and Accrued Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	10		10		$ 19
Cost of Revenue [Member]
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	1	12	4	29
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Total restructuring charges	$ 2	$ 3	$ 5	$ 7