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Inventories (Tables)
9 Months Ended
Sep. 30, 2023
Inventories  
Major classes of inventory

September 30,

December 31,

September 30,

    

2023

    

2022

    

2022

Finished goods

$

894

$

667

$

623

Raw materials

 

152

 

137

 

131

Operating supplies

 

52

 

44

 

38

$

1,098

$

848

$

792