Inventories

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories are stated at the lower of cost (principally on a first-in-first-out basis, "FIFO") and net realizable value. The components of inventories were as follows:

	As of
	September 30,  2018			December 31, 2017
Raw materials	$	107		$	90
Work in progress	11			21
Finished products	71			70
Inventories	$	189		$	181
Inventory valuation reserve	(23		)	(27		)
Total inventories, net of reserve	$	166		$	154