DERIVATIVES AND HEDGING ACTIVITIES DERIVATIVES AND HEDGING ACTIVITIES ( Additional Disclosures) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Derivative [Line Items]
Gain (Loss) on Price Risk Derivatives, Net	$ (2)	$ (1)
Commodity Contract [Member]
Derivative [Line Items]
Notional amount of derivatives	28	36
Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivative [Line Items]
Notional amount of derivatives	$ 28	$ 36