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Inventories
3 Months Ended
Mar. 31, 2016
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
2.
INVENTORIES

We state our inventories at the lower of cost or market.  The cost of our inventories is determined using the FIFO method.  When we determine that our gross inventories exceed usage requirements, or if inventories become obsolete or otherwise not saleable, we record a provision for such loss as a component of our inventory accounts.

Inventories consist of the following: 
 
 
March 31, 2016
 
December 31, 2015
 
 
(in millions)
 
 
 
 
 
Raw materials and work-in-progress
 
$
228.1

 
$
228.7

Finished goods
 
30.5

 
31.1

Gross inventories
 
258.6

 
259.8

Inventory valuation reserves
 
(28.9
)
 
(29.3
)
Inventories, net
 
$
229.7

 
$
230.5