Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Inventory Components [Table Text Block]

Inventory components at December 31 —

	2017			2016
Raw materials	$	442		$	321
Work in process and finished goods	580			368
Inventory reserves	(53		)	(51		)
Total	$	969		$	638