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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventories Table
Inventories consisted of the following:
 
March 31,
2015
 
December 31,
2014
 
March 31,
2014
 
($ in millions)
Supplies
$
40.2

 
$
39.2

 
$
42.5

Raw materials
63.6

 
63.3

 
74.0

Work in process
37.2

 
31.8

 
34.3

Finished goods
141.1

 
141.5

 
116.2

 
282.1

 
275.8

 
267.0

LIFO reserve
(66.0
)
 
(65.7
)
 
(79.4
)
Inventories, net
$
216.1

 
$
210.1

 
$
187.6