INTANGIBLE ASSETS (Schedule of Amortization Expense of Intangible Assets) (Table and Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets, Gross	$ 114	$ 113
Finite-Lived Intangible Assets, Accumulated Amortization	(99)	(97)
Finite-Lived Intangible Assets, Net	15	16
Developed Technology Rights
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, Gross	81	80
Finite-Lived Intangible Assets, Accumulated Amortization	(66)	(64)
Finite-Lived Intangible Assets, Net	$ 15	$ 16