XML 64 R26.htm IDEA: XBRL DOCUMENT v3.2.0.727
Pension and Other Postemployment Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]  
Components of net periodic expense of Pension and OPEB plans
The following table presents the components of net periodic expense (benefit) of our pension plans:
 
Pension Benefits
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(in millions)
2015
 
2014
 
2015
 
2014
Service cost
$
0.2

 
$
0.2

 
$
0.4

 
$
0.5

Interest cost
1.6

 
1.9

 
3.1

 
3.6

Expected return on plan assets
(2.1
)
 
(2.1
)
 
(4.2
)
 
(4.2
)
Amortization of net loss (gain)
0.2

 
0.1

 
0.7

 
0.4

Amortization of unrecognized prior service (credit)
—

 
—

 
—

 
(0.1
)
Net periodic expense (benefit)
$
(0.1
)
 
$
0.1

 
$
—

 
$
0.2