INTANGIBLE ASSETS (Schedule of Amortization Expense of Intangible Assets) (Table and Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 110	$ 112
Finite-Lived Intangible Assets, Accumulated Amortization	(86)	(87)
Finite-Lived Intangible Assets, Net	24	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	77	79
Finite-Lived Intangible Assets, Accumulated Amortization	(53)	(54)
Finite-Lived Intangible Assets, Net	$ 24	$ 25