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ENVIRONMENTAL (Tables)
 12 Months Ended
Dec. 31, 2011
ENVIRONMENTAL [Abstract]  
Rollforward of environmental liabilities
Our liabilities for future environmental expenditures were as follows:
   
December 31,
 
   
2011
   
2010
 
   
($ in millions)
 
Beginning balance
 
$
167.6
   
$
166.1
 
Charges to income
   
19.3
     
16.3
 
Remedial and investigatory spending
   
(23.3
)
   
(15.7
)
Currency translation adjustments
   
(0.3
)
   
0.9
 
Ending balance
 
$
163.3
   
$
167.6
 

Environmental Provisions Charged (Credited) to Income Table
Environmental provisions charged (credited) to income, which are included in cost of goods sold, were as follows:

   
Years ended December 31,
 
   
2011
   
2010
   
2009
 
   
($ in millions)
 
Charges to income
 
$
19.3
   
$
16.3
   
$
24.1
 
Recoveries from third parties of costs incurred and expensed in prior periods
   
(11.4
)
   
(7.2
)
   
(82.1
)
Total environmental expense (income)
 
$
7.9
   
$
9.1
   
$
(58.0
)