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Inventories
12 Months Ended
Dec. 31, 2020
Inventories  
Inventories

5. Inventories

Major classes of inventory are as follows:

    

2020

    

2019

 

Finished goods

$

675

$

872

Raw materials

 

129

 

128

Operating supplies

 

37

 

45

$

841

$

1,045