Inventories

6 Months Ended

Jun. 30, 2020

Inventories

Inventories

4. Inventories

Major classes of inventory at June 30, 2020, December 31, 2019 and June 30, 2019 are as follows:

	June 30,		December 31,		June 30,
	2020		2019		2019
Finished goods	$	833	$	872	$	838
Raw materials		129		128		131
Operating supplies		42		45		46
	$	1,004	$	1,045	$	1,015