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Inventories
12 Months Ended
Dec. 31, 2019
Inventory, Net [Abstract]  
Inventories Inventories
Inventories consist of the following at December 31:
 
 
2019
 
2018
Finished products
 
$
568

 
$
657

Feedstock, additives, chemicals and other raw materials
 
210

 
203

Materials and supplies
 
158

 
154

Inventories
 
$
936

 
$
1,014