Quarterly report pursuant to Section 13 or 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)

v3.7.0.1
PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)
 6 Months Ended
Jun. 30, 2017
Postemployment Benefits [Abstract]  
Schedule of Net Benefit Costs
The following are the components of defined benefit pension and OPEB costs and credits for the three and six months ended June 30, 2017 and 2016:
Defined Benefit Pension Costs
 
(In Millions)
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2017
 
2016
 
2017
 
2016
Service cost
$
4.7

 
$
4.5

 
$
9.5

 
$
9.0

Interest cost
7.5

 
7.5

 
15.0

 
14.9

Expected return on plan assets
(13.6
)
 
(13.7
)
 
(27.1
)
 
(27.4
)
Amortization:
 
 
 
 
 
 
 
Prior service costs
0.7

 
0.5

 
1.3

 
1.1

Net actuarial loss
5.3

 
5.3

 
10.6

 
10.5

Net periodic benefit cost
$
4.6

 
$
4.1

 
$
9.3

 
$
8.1


Other Postretirement Benefits Credit
 
(In Millions)
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
2017
 
2016
 
2017
 
2016
Service cost
$
0.5

 
$
0.4

 
$
1.0

 
$
0.9

Interest cost
2.2

 
2.3

 
4.3

 
4.5

Expected return on plan assets
(4.5
)
 
(4.3
)
 
(8.9
)
 
(8.5
)
Amortization:
 
 
 
 
 
 
 
Prior service credits
(0.8
)
 
(0.9
)
 
(1.5
)
 
(1.8
)
Net actuarial loss
1.3

 
1.4

 
2.5

 
2.8

Net periodic benefit credit
$
(1.3
)
 
$
(1.1
)
 
$
(2.6
)
 
$
(2.1
)