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Employee Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2024
Retirement Benefits [Abstract]  
Components of Net Pension Expense (Income) The following information details the components of net pension expense (income) for the Company’s defined benefit plans:

 

 

Three Months Ended

 

 

Nine Months Ended

 

 

 

September 30

 

 

September 30

 

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

Service cost

 

$

25.3

 

 

$

23.5

 

 

$

80.7

 

 

$

70.4

 

Interest on projected benefit obligation

 

 

34.4

 

 

 

32.0

 

 

 

101.4

 

 

 

95.7

 

Expected return on assets

 

 

(60.8

)

 

 

(57.8

)

 

 

(181.9

)

 

 

(172.9

)

Amortization of prior service costs

 

 

.3

 

 

 

.3

 

 

 

1.0

 

 

 

1.0

 

Recognized actuarial loss

 

 

2.5

 

 

 

1.3

 

 

 

5.3

 

 

 

3.7

 

Net pension expense (income)

 

$

1.7

 

 

$

(.7

)

 

$

6.5

 

 

$

(2.1

)