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Inventories
 12 Months Ended
Dec. 31, 2017
Inventory Disclosure [Abstract]  
Inventories
Inventories
The following table details our inventories: 
 
 
December 31,
(In millions)
 
2017
 
2016
Inventories, net:
 
 

 
 

Raw materials
 
$
82.8

 
$
81.5

Work in process
 
125.7

 
114.4

Finished goods
 
298.3

 
260.8

Total
 
$
506.8

 
$
456.7