INTANGIBLE ASSETS (Schedule of Amortization Expense of Intangible Assets) (Table and Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 96	$ 96
Finite-Lived Intangible Assets, Accumulated Amortization	(75)	(74)
Finite-Lived Intangible Assets, Net	21	22
Licenses and intellectual property [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	33	33
Finite-Lived Intangible Assets, Accumulated Amortization	(33)	(33)
Finite-Lived Intangible Assets, Net	0	0
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	63	63
Finite-Lived Intangible Assets, Accumulated Amortization	(42)	(41)
Finite-Lived Intangible Assets, Net	$ 21	$ 22