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SEGMENT INFORMATION
 3 Months Ended
Mar. 31, 2012
SEGMENT INFORMATION [Abstract]  
SEGMENT INFORMATION

SEGMENT INFORMATION

We define segment results as income before interest expense, interest income, other operating income, other (expense) income and income taxes, and include the operating results of non-consolidated affiliates.

   
Three Months Ended
March 31,
 
   
2012
   
2011
 
Sales:
 
($ in millions)
 
Chlor Alkali Products
 
$
359.7
   
$
299.4
 
Winchester
   
147.5
     
136.6
 
Total sales
 
$
507.2
   
$
436.0
 
Income before taxes:
               
Chlor Alkali Products
 
$
74.4
   
$
45.2
 
Winchester
   
10.8
     
12.5
 
Corporate/other:
               
Pension income
   
6.3
     
6.7
 
Environmental expense
   
(2.8
)
   
(1.5
)
Other corporate and unallocated costs
   
(17.9
)
   
(18.6
)
Restructuring charges
   
(1.9
)
   
(0.1
)
Other operating income
   
0.5
     
1.4
 
Interest expense
   
(6.5
)
   
(7.2
)
Interest income
   
0.2
     
0.2
 
Other (expense) income
   
(2.6
)
   
181.2
 
Income before taxes
 
$
60.5
   
$
219.8