Defined Benefit Pension Plan

Three Months Ended

Six Months Ended

June 30,

2026

2025

2026

2025

Service cost

$

3.5

$

3.8

$

7.1

$

7.4

Interest cost

5.6

5.0

11.3

9.7

Expected return on assets

(5.3

)

(5.2

)

(10.6

)

(10.0

)

Net (gain) loss

(0.1

)

0.1

(0.3

)

0.2

Prior service cost

0.2

0.2

0.3

0.3

Total benefit cost

$

3.9

$

3.9

$

7.8

$

7.6

Retiree Health Care Plan

Three Months Ended

Six Months Ended

June 30,

2026

2025

2026

2025

Interest cost

$

0.1

$

0.1

$

0.2

$

0.2

Prior service credit

(0.2

)

(0.2

)

(0.4

)

(0.4

)

Total benefit credit

$

(0.1

)

$

(0.1

)

$

(0.2

)

$

(0.2

)