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Quarterly report pursuant to Section 13 or 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)

v3.8.0.1
PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)
 3 Months Ended
Mar. 31, 2018
Postemployment Benefits [Abstract] Ìý
Schedule of Net Benefit Costs
The following are the components of defined benefit pension and OPEB costs and credits:
Defined Benefit Pension Costs
Ìý
(In Millions)
Ìý
Three Months Ended
March 31,
Ìý
2018
Ìý
2017
Service cost
$
4.7

Ìý
$
4.8

Interest cost
7.6

Ìý
7.5

Expected return on plan assets
(15.0
)
Ìý
(13.5
)
Amortization:
Ìý
Ìý
Ìý
Prior service costs
0.5

Ìý
0.6

Net actuarial loss
5.3

Ìý
5.3

Net periodic benefit cost
$
3.1

Ìý
$
4.7


Other Postretirement Benefits Credits
Ìý
(In Millions)
Ìý
Three Months Ended
March 31,
Ìý
2018
Ìý
2017
Service cost
$
0.5

Ìý
$
0.5

Interest cost
2.1

Ìý
2.1

Expected return on plan assets
(4.6
)
Ìý
(4.4
)
Amortization:
Ìý
Ìý
Ìý
Prior service credits
(0.8
)
Ìý
(0.7
)
Net actuarial loss
1.2

Ìý
1.2

Net periodic benefit credit
$
(1.6
)
Ìý
$
(1.3
)