Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Inventory Disclosure [Abstract]

Components of Inventories

	As of December 31
	2018			2017
Raw material	$	108		$	90
Work in progress	15			21
Finished products	71			70
Inventories	$	194		$	181
Inventory reserve at beginning of year	$	(27	)	$	(25	)
Reversal of reserve	1			5
Addition to reserve	(3		)	(6		)
Write-off against reserve	5			1
Translation difference	1			(2		)
Inventory reserve at end of year	$	(23	)	$	(27	)
Total inventories, net of reserve	$	172		$	154