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Inventories, net (Tables)
 6 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
Schedule of Inventory
 
June 30,
 
December 31,
(in millions)
2017
 
2016
Raw material and supplies
$
424.8

 
$
378.6

Work in progress
120.1

 
102.9

Finished goods
171.0

 
174.9

FIFO inventories
715.9

 
656.4

LIFO reserve
(14.5
)
 
(15.2
)
Inventories, net
$
701.4

 
$
641.2