v3.26.1
Employee benefit plans (Tables)
3 Months Ended
Mar. 31, 2026
Employee benefit plans  
Schedule of components of net periodic benefit cost

Three months ended

March 31, 

  ​ ​ ​

2025

  ​ ​ ​

2026

(In millions)

Net periodic pension cost (income):

 

  ​

 

  ​

Service cost

$

1.4

$

1.3

Interest cost

 

4.9

 

5.6

Expected return on plan assets

 

(4.8)

 

(5.3)

Recognized actuarial losses

 

.3

 

.4

Total

$

1.8

$

2.0