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Quarterly report pursuant to Section 13 or 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)

v3.10.0.1
PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Tables)
 9 Months Ended
Sep. 30, 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
September 30,
Ìý
Nine Months Ended
September 30,
Ìý
2018
Ìý
2017
Ìý
2018
Ìý
2017
Service cost
$
4.7

Ìý
$
3.4

Ìý
$
14.0

Ìý
$
12.9

Interest cost
7.6

Ìý
7.9

Ìý
22.7

Ìý
22.9

Expected return on plan assets
(15.0
)
Ìý
(13.8
)
Ìý
(45.0
)
Ìý
(40.9
)
Amortization:
Ìý
Ìý
Ìý
Ìý
Ìý
Ìý
Ìý
Prior service costs
0.6

Ìý
0.6

Ìý
1.7

Ìý
1.9

Net actuarial loss
5.3

Ìý
6.1

Ìý
15.9

Ìý
16.7

Net periodic benefit cost
$
3.2

Ìý
$
4.2

Ìý
$
9.3

Ìý
$
13.5


Other Postretirement Benefits Credits
Ìý
(In Millions)
Ìý
Three Months Ended
September 30,
Ìý
Nine Months Ended
September 30,
Ìý
2018
Ìý
2017
Ìý
2018
Ìý
2017
Service cost
$
0.6

Ìý
$
0.3

Ìý
$
1.6

Ìý
$
1.3

Interest cost
2.1

Ìý
1.9

Ìý
6.2

Ìý
6.2

Expected return on plan assets
(4.6
)
Ìý
(4.4
)
Ìý
(13.8
)
Ìý
(13.3
)
Amortization:
Ìý
Ìý
Ìý
Ìý
Ìý
Ìý
Ìý
Prior service credits
(0.7
)
Ìý
(0.8
)
Ìý
(2.2
)
Ìý
(2.3
)
Net actuarial loss
1.3

Ìý
0.9

Ìý
3.8

Ìý
3.4

Net periodic benefit credit
$
(1.3
)
Ìý
$
(2.1
)
Ìý
$
(4.4
)
Ìý
$
(4.7
)