SHAREHOLDERS' EQUITY (Tables)
 9 Months Ended
Sep. 30, 2012
Stockholders' Equity Note [Abstract]  
Activity included in accumulated other comprehensive loss table
The following table represents the activity included in accumulated other comprehensive loss:
 
Foreign
Currency
Translation
Adjustment
 
Unrealized
Gains (Losses)
on Derivative
Contracts
(net of taxes)
 
Pension and
Postretirement
Benefits
(net of taxes)
 
Accumulated
Other Comprehensive
Loss
 
($ in millions)
Balance at January 1, 2011
$
0.4

 
$
11.6

 
$
(273.8
)
 
$
(261.8
)
Unrealized gains (losses):
 
 
 
 
 
 
 
First quarter
1.3

 
0.4

 
—

 
1.7

Second quarter
1.0

 
(0.2
)
 
—

 
0.8

Third quarter
—

 
(13.2
)
 
—

 
(13.2
)
Reclassification adjustments into income:
 
 
 
 
 
 
 
First quarter
—

 
(3.5
)
 
2.8

 
(0.7
)
Second quarter
—

 
(2.9
)
 
3.3

 
0.4

Third quarter
—

 
(0.8
)
 
3.0

 
2.2

Balance at September 30, 2011
$
2.7

 
$
(8.6
)
 
$
(264.7
)
 
$
(270.6
)
Balance at January 1, 2012
$
1.8

 
$
(5.3
)
 
$
(290.7
)
 
$
(294.2
)
Unrealized gains (losses):
 
 
 
 
 
 
 
First quarter
0.3

 
2.6

 
—

 
2.9

Second quarter
(0.8
)
 
(4.1
)
 
—

 
(4.9
)
Third quarter
0.8

 
7.8

 
—

 
8.6

Reclassification adjustments into income:
 
 
 
 
 
 
 
First quarter
—

 
1.7

 
3.2

 
4.9

Second quarter
—

 
1.1

 
4.3

 
5.4

Third quarter
—

 
1.4

 
3.3

 
4.7

Balance at September 30, 2012
$
2.1

 
$
5.2

 
$
(279.9
)
 
$
(272.6
)