XML 58 R27.htm IDEA: XBRL DOCUMENT v2.4.0.8
Components of Net Periodic Benefit Cost (Tables)
 9 Months Ended
Sep. 30, 2014
General Discussion of Pension and Other Postretirement Benefits [Abstract]  
Components of net periodic benefit cost
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
(in millions)
 
2014
 
2013
 
2014
 
2013
Service cost - benefits earned during the period
 
$
2.0

 
$
3.5

 
$
5.9

 
$
10.6

Interest cost on projected benefit obligation
 
8.6

 
8.1

 
25.6

 
24.3

Expected return on plan assets
 
(12.0
)
 
(12.0
)
 
(36.0
)
 
(36.0
)
Settlement loss
 
0.9

 
—

 
1.3

 
—

Curtailment loss
 
—

 
0.4

 
0.9

 
0.4

Amortization:
 
 
 
 
 
 
 
 
Unrecognized transition obligation
 
0.1

 
0.1

 
0.2

 
0.2

Prior service cost
 
0.3

 
0.2

 
1.0

 
0.8

Actuarial net loss
 
3.0

 
6.5

 
8.8

 
19.5

Net periodic benefit cost
 
$
2.9

 
$
6.8

 
$
7.7

 
$
19.8