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Inventories
9 Months Ended
Sep. 30, 2018
Inventory, Net, Items Net of Reserve Alternative [Abstract]  
Inventories
Inventories

Inventories by major class are as follows:
 
September 30,
2018
 
December 31,
2017
Raw materials and supplies
$
248

 
$
267

Work-in-process
40

 
42

Finished goods
957

 
912

Total Inventories
$
1,245

 
$
1,221