XML 42 R50.htm IDEA: XBRL DOCUMENT v2.4.0.6
ENVIRONMENTAL (Tables)
 12 Months Ended
Dec. 31, 2012
Environmental Remediation Obligations [Abstract]  
Rollforward of environmental liabilities
Our liabilities for future environmental expenditures were as follows:
 
December 31,
 
 
 
2012
 
2011
 
 
 
($ in millions)
 
 
Beginning balance
$
163.3

 
$
167.6

 
 
Charges to income
8.4

 
19.3

 
 
Remedial and investigatory spending
(25.5
)
 
(23.3
)
 
 
Currency translation adjustments
0.3

 
(0.3
)
 
 
Ending balance
$
146.5

 
$
163.3

 
 
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,
 
2012
 
2011
 
2010
 
($ in millions)
Charges to income
$
8.4

 
$
19.3

 
$
16.3

Recoveries from third parties of costs incurred and expensed in prior periods
(0.1
)
 
(11.4
)
 
(7.2
)
Total environmental expense
$
8.3

 
$
7.9

 
$
9.1