INTANGIBLE ASSETS (Schedule of Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 112	$ 107
Finite-Lived Intangible Assets, Accumulated Amortization	(87)	(82)
Finite-Lived Intangible Assets, Net	25	25
Licenses and Developed Technology [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	79	74
Finite-Lived Intangible Assets, Accumulated Amortization	(54)	(49)
Finite-Lived Intangible Assets, Net	$ 25	$ 25