Inventories (Tables)

3 Months Ended

Mar. 31, 2021

Inventory Disclosure [Abstract]

Summary of the Components of Inventory

The components of inventories consisted of the following:

	As of March 31, 2021		As of December 31, 2020
Raw materials	$	190	$	180
Work in progress		108		108
Finished goods		429		410
Spare parts		89		86
Inventories	$	816	$	784