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Employee Benefit Plans
 9 Months Ended
Sep. 30, 2025
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Employee Benefit Plans

6. Employee Benefit Plans

The components of net periodic pension benefit cost and net periodic post-employment benefit cost were as follows (in millions):

 

 

Three Months Ended
September 30,

 

 

Nine Months Ended
September 30,

 

 

 

2025

 

 

2024

 

 

2025

 

 

2024

 

Components of net periodic pension benefit (income) cost

 

 

 

 

 

 

 

 

 

 

 

 

Service cost

 

$

1.3

 

 

$

1.6

 

 

$

3.8

 

 

$

4.7

 

Interest cost

 

 

4.5

 

 

 

4.1

 

 

 

13.4

 

 

 

12.5

 

Expected return on plan assets

 

 

(5.4

)

 

 

(5.2

)

 

 

(16.2

)

 

 

(15.5

)

Amortization of prior service cost

 

 

0.4

 

 

 

0.5

 

 

 

1.2

 

 

 

1.3

 

Amortization of net actuarial gain

 

 

(1.5

)

 

 

(0.6

)

 

 

(4.3

)

 

 

(1.9

)

Expenses paid

 

 

0.2

 

 

 

0.2

 

 

 

0.5

 

 

 

0.5

 

Net periodic pension benefit (income) cost

 

$

(0.5

)

 

$

0.6

 

 

$

(1.6

)

 

$

1.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Components of net periodic post-employment benefit cost

 

 

 

 

 

 

 

 

 

 

 

 

Service cost

 

$

0.4

 

 

$

0.4

 

 

$

1.1

 

 

$

1.3

 

Interest cost

 

 

0.5

 

 

 

0.6

 

 

 

1.8

 

 

 

1.8

 

Amortization of prior service credit

 

 

(0.4

)

 

 

(0.4

)

 

 

(1.1

)

 

 

(1.1

)

Amortization of net actuarial gain

 

 

—

 

 

 

—

 

 

 

(0.1

)

 

 

—

 

Net periodic post-employment benefit cost

 

$

0.5

 

 

$

0.6

 

 

$

1.7

 

 

$

2.0

 

The components of net periodic benefit cost other than “Service cost” and “Expenses paid” are included in “Miscellaneous, net” in the Condensed Consolidated Statements of Income.