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Inventories
9 Months Ended
Sep. 30, 2015
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: 
 
 
September 30, 2015
 
December 31, 2014
 
 
(in millions)
 
 
 
 
 
Raw materials and work-in-progress
 
$
232.9

 
$
243.8

Finished goods
 
31.7

 
32.9

Gross inventories
 
264.6

 
276.7

Inventory valuation reserves
 
(31.6
)
 
(27.9
)
Inventories, net
 
$
233.0

 
$
248.8