Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Schedule of Inventory

At December 31, 2019 and 2018, inventory by major classification was as follows:

	December 31
	2019		2018
Finished goods	$	1,027	$	1,116
Work in process	460		562
Raw materials	408		457
Materials and supplies	104		110
Total inventories	$	1,999	$	2,245