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POSTRETIREMENT BENEFITS (Tables)
 12 Months Ended
Dec. 31, 2011
POSTRETIREMENT BENEFITS Disclosure [Abstract]  
Amounts recognized in consolidated balance sheet
Amounts recognized in the consolidated balance sheets consisted of:

 
December 31, 2011
 
December 31, 2010
 
 
($ in millions)
 
($ in millions)
 
   
U.S.
   
Foreign
   
Total
   
U.S.
   
Foreign
   
Total
 
Accrued benefit in current liabilities
 
$
(6.0
)
 
$
(0.4
)
 
$
(6.4
)
 
$
(6.7
)
 
$
(0.4
)
 
$
(7.1
)
Accrued benefit in noncurrent liabilities
   
(57.3
)
   
(11.2
)
   
(68.5
)
   
(57.8
)
   
(8.9
)
   
(66.7
)
Accumulated other comprehensive loss
   
35.0
     
1.7
     
36.7
     
35.2
     
(0.5
)
   
34.7
 
Net balance sheet impact
 
$
(28.3
)
 
$
(9.9
)
 
$
(38.2
)
 
$
(29.3
)
 
$
(9.8
)
 
$
(39.1
)

 
Components of net periodic benefit cost
   
Years Ended December 31,
 
Components of Net Periodic Benefit Cost
 
2011
   
2010
   
2009
 
   
($ in millions)
 
Service cost
 
$
1.3
   
$
1.3
   
$
1.2
 
Interest cost
   
3.5
     
3.8
     
4.2
 
Amortization of prior service cost
   
(0.2
)
   
(0.2
)
   
(0.2
)
Recognized actuarial loss
   
3.2
     
2.6
     
2.1
 
Curtailment
   
-
     
(0.2
)
   
-
 
Net periodic benefit cost
 
$
7.8
   
$
7.3
   
$
7.3
 
 
Included in Other Comprehensive Loss (Pretax)
                       
Liability adjustment
 
$
5.0
   
$
3.6
   
$
6.7
 
Amortization of prior service costs and actuarial losses
   
(3.0
)
   
(2.2
)
   
(1.9
)
Schedule of actuarial assumption
   
December 31,
 
Weighted Average Assumptions:
 
2011
   
2010
   
2009
 
Discount rate-periodic benefit cost
   
4.90
%
   
5.25
%
   
6.25
%
Discount rate-benefit obligation
   
4.60
%
   
4.90
%
   
5.25
%
Assumed healthcare cost trend rates
The assumed healthcare cost trend rates for pre-65 retirees were as follows:

 
December 31,
 
 
2011
   
2010
 
Healthcare cost trend rate assumed for next year
   
9.5
%
   
9.5
%
Rate that the cost trend rate gradually declines to
   
5.0
%
   
5.0
%
Year that the rate reaches the ultimate rate
2020
   
2019
 

Effects of one percent change in the assumed health care cost trend rates
A one-percentage-point change in assumed healthcare cost trend rates would have the following effects:

   
One-Percentage
Point Increase
   
One-Percentage
Point Decrease
 
   
($ in millions)
 
Effect on total of service and interest costs
 
$
0.3
   
$
(0.2
)
Effect on postretirement benefit obligation
   
3.5
     
(3.0
)
Postretirement plan change in benefit obligation
Changes in the benefit obligation were as follows:

 
December 31, 2011
 
December 31, 2010
 
 
($ in millions)
 
($ in millions)
 
Change in Benefit Obligation
 
U.S.
   
Foreign
   
Total
   
U.S.
   
Foreign
   
Total
 
Benefit obligation at beginning of year
 
$
64.5
   
$
9.3
   
$
73.8
   
$
66.4
   
$
7.6
   
$
74.0
 
Service cost
   
1.1
     
0.2
     
1.3
     
1.2
     
0.1
     
1.3
 
Interest cost
   
3.0
     
0.5
     
3.5
     
3.3
     
0.5
     
3.8
 
Actuarial loss
   
2.8
     
2.3
     
5.1
     
3.0
     
0.9
     
3.9
 
Benefits paid
   
(8.1
)
   
(0.4
)
   
(8.5
)
   
(9.1
)
   
(0.3
)
   
(9.4
)
Curtailment
   
-
     
-
     
-
     
(0.3
)
   
-
     
(0.3
)
Currency translation adjustments
   
-
     
(0.3
)
   
(0.3
)
   
-
     
0.5
     
0.5
 
Benefit obligation at end of year
 
$
63.3
   
$
11.6
   
$
74.9
   
$
64.5
   
$
9.3
   
$
73.8
 
                                                 
                                                 
 
December 31, 2011
 
December 31, 2010
 
 
($ in millions)
 
($ in millions)
 
   
U.S.
   
Foreign
   
Total
   
U.S.
   
Foreign
   
Total
 
Funded status
 
$
(63.3
)
 
$
(11.6
)
 
$
(74.9
)
 
$
(64.5
)
 
$
(9.3
)
 
$
(73.8
)