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Employee Benefit Plans (Tables)
6 Months Ended
Jun. 30, 2022
Compensation And Retirement Disclosure [Abstract]  
Components of Net Periodic Benefit Cost

Three months ended

Six months ended

June 30, 

June 30, 

    

2021

    

2022

    

2021

    

2022

(In millions)

Net periodic pension cost (income):

 

  

 

  

 

  

 

  

Service cost

$

3.6

$

2.9

$

7.4

$

5.9

Interest cost

 

2.2

 

2.7

 

4.4

 

5.6

Expected return on plan assets

 

(3.0)

 

(3.0)

 

(6.0)

 

(6.1)

Amortization of prior service cost

.1

-

.1

-

Recognized actuarial losses

 

5.1

 

3.4

 

10.2

 

6.8

Total

$

8.0

$

6.0

$

16.1

$

12.2