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Inventories (Tables)
3 Months Ended
Mar. 31, 2021
Inventory, Net, Items Net of Reserve Alternative [Abstract]  
Inventories by Major Class
Inventories by major class are as follows:
March 31,
2021
December 31,
2020
Raw materials and supplies$463 $454 
Work-in-process48 45 
Finished goods1,264 1,256 
       Total Inventories, net$1,775 $1,755 
            Non-current inventory, net$(99)$(82)
              Current Inventories, net$1,676 $1,673