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Inventories, Net
6 Months Ended
Jun. 30, 2014
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, 2014
 
December 31, 2013
Materials and supplies
$
135.0

 
$
123.5

Work in process
119.4

 
107.0

Finished products
557.4

 
453.9

 
$
811.8

 
$
684.4