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Inventories (Tables)
 9 Months Ended
Sep. 30, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consist of the following: 
 
 
September 30, 2016
 
December 31, 2015
 
 
(in millions)
 
 
 
 
 
Raw materials and work-in-progress
 
$
219.6

 
$
228.7

Finished goods
 
28.3

 
31.1

Gross inventories
 
247.9

 
259.8

Inventory valuation reserves
 
(28.5
)
 
(29.3
)
Inventories, net
 
$
219.4

 
$
230.5