Inventories (Tables)

3 Months Ended

Mar. 31, 2019

Inventory Disclosure [Abstract]

Schedule of Inventory

At March 31, 2019 and December 31, 2018, inventory consists of the following:

	March 31, 2019		December 31, 2018
Finished goods	$	1,181	$	1,116
Work in process	526		562
Raw materials	450		457
Materials and supplies	109		110
	$	2,266	$	2,245