INTANGIBLE ASSETS (Schedule of Amortization Expense of Intangible Assets) (Table and Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 113	$ 112
Finite-Lived Intangible Assets, Accumulated Amortization	(88)	(87)
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	80	79
Finite-Lived Intangible Assets, Accumulated Amortization	(55)	(54)
Finite-Lived Intangible Assets, Net	$ 25	$ 25