XML 30 R18.htm IDEA: XBRL DOCUMENT v3.8.0.1
Employee Benefits (Tables)
 3 Months Ended
Mar. 31, 2018
Retirement Benefits [Abstract]  
Schedule of Costs of Retirement Plans [Table Text Block]
The following table presents the components of our Company-sponsored pension plan costs for the three months ended March 31:
 
 
Three Months
(in millions)
2018
 
2017
Service cost
$
0.1

 
$
1.3

Interest cost
10.9

 
12.8

Expected return on plan assets
(15.1
)
 
(14.8
)
Amortization of prior service credit
(0.1
)
 
—

Amortization of prior net pension loss
3.7

 
3.9

Total net periodic pension cost
$
(0.5
)
 
$
3.2