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Inventories, Net
6 Months Ended
Jun. 30, 2016
Inventory, Net [Abstract]  
Inventories, Net
Inventories, Net
Inventories are stated at the lower of cost or market value. The components of net inventories were as follows (in millions):
 
June 30, 2016
 
December 31, 2015
Materials and supplies
$
442.2

 
$
117.3

Work in process
245.0

 
108.0

Finished products
2,221.5

 
496.5

 
$
2,908.7

 
$
721.8