Inventories (Tables)

12 Months Ended

Dec. 31, 2020

Inventory Disclosure [Abstract]

Schedule of Inventory

At December 31, 2020 and 2019, inventory by major classification was as follows:

	December 31
	2020		2019
Finished goods	$	758	$	1,027
Work in process	449		460
Raw materials	441		408
Materials and supplies	95		104
Total inventories	$	1,743	$	1,999