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Employee benefit plans (Tables)
3 Months Ended
Mar. 31, 2025
Employee benefit plans.  
Schedule of components of net periodic benefit cost

Three months ended

March 31, 

    

2024

    

2025

(In millions)

Net periodic pension cost (income):

 

  

 

  

Service cost

$

1.7

$

1.4

Interest cost

 

5.0

 

4.9

Expected return on plan assets

 

(5.3)

 

(4.8)

Recognized actuarial losses

 

.6

 

.3

Total

$

2.0

$

1.8