SEGMENT INFORMATION
 9 Months Ended
Sep. 30, 2012
Segment Reporting [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. Intersegment sales of $4.8 million for the three and nine months ended September 30, 2012, representing the sale of caustic soda, bleach, and hydrochloric acid to Chemical Distribution from Chlor Alkali Products, at prices that approximate market, have been eliminated from Chlor Alkali Products segment sales.
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2012
 
2011
 
2012
 
2011
Sales:
($ in millions)
Chlor Alkali Products
$
364.8

 
$
386.1

 
$
1,087.7

 
$
1,065.8

Chemical Distribution
47.6

 
—

 
47.6

 
—

Winchester
168.8

 
164.1

 
461.8

 
449.5

Total sales
$
581.2

 
$
550.2

 
$
1,597.1

 
$
1,515.3

Income before taxes:
 
 
 
 
 
 
 
Chlor Alkali Products
$
59.5

 
$
76.7

 
$
208.9

 
$
194.7

Chemical Distribution
1.9

 
—

 
1.9

 
—

Winchester
16.0

 
13.1

 
38.7

 
37.4

Corporate/other:
 
 
 
 
 
 
 
Pension income
7.2

 
6.9

 
20.5

 
20.8

Environmental expense
(3.6
)
 
(2.5
)
 
(6.7
)
 
(2.9
)
Other corporate and unallocated costs
(16.8
)
 
(15.7
)
 
(55.5
)
 
(52.8
)
Restructuring charges
(2.3
)
 
(4.1
)
 
(6.0
)
 
(6.6
)
Acquisition costs
(8.3
)
 
—

 
(8.3
)
 
(0.8
)
Other operating income
1.1

 
4.3

 
1.5

 
5.9

Interest expense
(6.0
)
 
(7.9
)
 
(18.3
)
 
(22.5
)
Interest income
0.2

 
0.2

 
0.7

 
0.7

Other (expense) income
(2.2
)
 
(1.6
)
 
(6.9
)
 
179.0

Income before taxes
$
46.7

 
$
69.4

 
$
170.5

 
$
352.9