XML 41 R30.htm IDEA: XBRL DOCUMENT v3.20.2
PENSION AND POST-RETIREMENT PLANS (Tables)
9 Months Ended
Sep. 30, 2020
PENSION AND POST-RETIREMENT PLANS  
Components of net periodic benefit cost (benefit)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Pension Benefits

​

Post-retirement Benefits

​

​

Three Months Ended September 30, 

​

Three Months Ended September 30, 

(In millions)

    

2020

    

2019

    

2020

    

2019

Components of net periodic benefit cost (benefit):

​

​

​

​

​

​

​

​

​

​

​

​

Service cost

​

$

1.3

​

$

1.3

​

$

0.1

​

$

—

Interest cost

​

 

2.1

​

 

2.4

​

 

0.2

​

 

0.1

Expected return on plan assets

​

 

(3.9)

​

 

(2.7)

​

 

—

​

 

—

Amortization of net loss (gain)

​

 

0.5

​

 

2.2

​

 

0.1

​

 

(0.5)

Amortization of prior service credit

​

 

(0.6)

​

 

(0.5)

​

 

(1.0)

​

 

(0.9)

Net periodic benefit cost (benefit)

​

$

(0.6)

​

$

2.7

​

$

(0.6)

​

$

(1.3)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Pension Benefits

​

Post-retirement Benefits

​

​

Nine Months Ended September 30, 

​

Nine Months Ended September 30, 

(In millions)

    

2020

    

2019

    

2020

    

2019

Components of net periodic benefit cost (benefit):

​

​

​

​

​

​

​

​

​

​

​

​

Service cost

​

$

3.8

​

$

3.5

​

$

0.4

​

$

0.3

Interest cost

​

 

5.9

​

 

7.0

​

 

0.6

​

 

0.7

Expected return on plan assets

​

 

(10.4)

​

 

(9.0)

​

 

—

​

 

—

Amortization of net loss (gain)

​

 

3.4

​

 

4.0

​

 

0.4

​

 

(0.1)

Amortization of prior service credit

​

 

(1.8)

​

 

(1.7)

​

 

(2.8)

​

 

(2.8)

Net periodic benefit cost (benefit)

​

$

0.9

​

$

3.8

​

$

(1.4)

​

$

(1.9)