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Stock Compensation Plans (Tables)
 9 Months Ended
Sep. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock based Compensation Plans
 
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2012
 
2011
 
2012
 
2011
Stock-based compensation plans (benefit)/expense
$
20

 
$
(16
)
 
$
73

 
$
30

Income tax (benefit)/expense
(7
)
 
6

 
(25
)
 
(11
)
Total stock-based compensation plans (benefit)/expense, net of tax
$
13

 
$
(10
)
 
$
48

 
$
19