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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2015
Inventory Disclosure [Abstract]  
Inventories Table
Inventories consisted of the following:
 
September 30,
2015
 
December 31,
2014
 
September 30,
2014
 
($ in millions)
Supplies
$
45.7

 
$
39.2

 
$
42.2

Raw materials
67.9

 
63.3

 
66.9

Work in process
29.0

 
31.8

 
35.5

Finished goods
153.4

 
141.5

 
130.5

 
296.0

 
275.8

 
275.1

LIFO reserve
(63.5
)
 
(65.7
)
 
(76.3
)
Inventories, net
$
232.5

 
$
210.1

 
$
198.8