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Pension and Other Postemployment Benefits (Tables)
6 Months Ended
Jun. 30, 2012
Defined Benefit Pension Plans [Member]
 
Components of Net Periodic Benefit Cost [Table Text Block]
Defined Benefit Pension Plans
The components of net periodic benefit cost for the six months ended June 30, 2012 and 2011 were (in millions):
 
2012
 
2011
 
 
 
 
 
 
 
 
Service cost
$
3.0

 
$
2.3

Interest cost
2.9

 
2.5

Expected return on plan assets
(1.2
)
 
(1.2
)
Amortization of prior service cost
1.6

 
1.5

Amortization of actuarial (gains) losses
0.7

 
0.3

 
 
 
 
 
 
 
 
 
$
7.0

 
$
5.4

 
 
 
 
Postemployment Arrangements [Member]
 
Components of Net Periodic Benefit Cost [Table Text Block]
Postemployment Arrangements
The components of net periodic benefit cost for the six months ended June 30, 2012 and 2011 were (in millions):
 
2012
 
2011
 
 
 
 
 
 
 
 
Service cost
$
2.0

 
$
1.9

Interest cost
2.3

 
2.4

Amortization of prior service cost
1.0

 
1.1

Amortization of actuarial (gains) losses
0.4

 
0.3

 


 


 
 
 
 
 
$
5.7

 
$
5.7