DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - The Pre-tax (Losses) Gains Included in the Consolidated Statements of Operations (Details) - Not designated as a hedge - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative instruments and hedging activities
Total (loss) gain	$ (1)	$ (4)	$ 3
Foreign currency exchange contracts | Other, net
Derivative instruments and hedging activities
Total (loss) gain	1	(1)	0
Foreign currency forward contracts | Other, net
Derivative instruments and hedging activities
Total (loss) gain	0	1	0
Metals contracts | Cost of sales
Derivative instruments and hedging activities
Total (loss) gain	0	0	5
Interest Rate Swaps | Other, net
Derivative instruments and hedging activities
Total (loss) gain	$ (2)	$ (4)	$ (2)