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Employee Benefits (Tables)
3 Months Ended
Mar. 31, 2014
Compensation and Retirement Disclosure [Abstract]  
Schedule of Costs of Retirement Plans [Table Text Block]
The following table presents the components of our company-sponsored pension costs for the three months ended March 31:
 
 
 
Three Months
(in millions)
 
2014
 
2013
Service cost
 
$
1.0

 
$
1.1

Interest cost
 
15.2

 
14.0

Expected return on plan assets
 
(13.4
)
 
(13.9
)
Amortization of net loss
 
3.2

 
3.7

Total periodic pension cost
 
$
6.0

 
$
4.9