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PENSION AND POST-RETIREMENT PLANS (Tables)
3 Months Ended
Mar. 31, 2020
PENSION AND POST-RETIREMENT PLANS  
Components of net periodic benefit cost (benefit)

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Pension Benefits

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Post-retirement Benefits

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Three Months Ended March 31, 

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Three Months Ended March 31, 

(In millions)

    

2020

    

2019

    

2020

    

2019

Components of net periodic benefit cost (benefit):

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Service cost

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$

1.2

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$

1.1

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$

0.1

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$

0.1

Interest cost

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1.9

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2.3

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0.2

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0.3

Expected return on plan assets

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(3.2)

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(3.1)

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—

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—

Amortization of net loss

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1.5

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0.9

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0.2

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0.2

Amortization of prior service credit

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(0.6)

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(0.6)

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(0.9)

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(0.9)

Net periodic benefit cost (benefit)

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$

0.8

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$

0.6

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$

(0.4)

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$

(0.3)

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