v3.26.3
Benefit Plans and Other Postretirement Benefits (Tables)
9 Months Ended
Sep. 30, 2026
Benefit Plans and Other Postretirement Benefits  
Schedule of components of net pension expense

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Three Months Ended

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Nine Months Ended

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September 30, 

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September 30, 

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2026

 

2025

  

2026

 

2025

Service cost

 

$

1.4

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$

0.8

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$

4.2

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$

2.3

Interest cost

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7.6

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5.9

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22.8

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17.6

Expected return on plan assets

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(8.4)

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(6.7)

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(25.3)

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(19.9)

Amortization of prior service cost

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0.3

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0.3

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0.9

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0.9

Amortization of net actuarial losses

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0.7

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0.8

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2.1

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2.3

Net pension expense

 

$

1.6

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$

1.1

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$

4.7

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$

3.2