INVENTORIES (Tables)
 9 Months Ended
Sep. 30, 2014
Inventory Disclosure [Abstract]  
Inventories Table
Inventories consisted of the following:
 
September 30,
2014
 
December 31,
2013
 
September 30,
2013
 
($ in millions)
Supplies
$
42.2

 
$
40.5

 
$
41.2

Raw materials
66.9

 
76.5

 
70.7

Work in process
35.5

 
26.4

 
28.1

Finished goods
130.5

 
115.9

 
117.3

 
275.1

 
259.3

 
257.3

LIFO reserve
(76.3
)
 
(72.8
)
 
(73.8
)
Inventories, net
$
198.8

 
$
186.5

 
$
183.5