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Employee Benefit Plans (Tables)
 3 Months Ended
Mar. 31, 2023
Compensation And Retirement Disclosure [Abstract]  
Components of Net Pension (Income) Expense The following information details the components of net pension (income) expense for the Company’s defined benefit plans:

 

Three Months Ended March 31,

 

2023

 

 

2022

 

Service cost

 

$

25.0

 

 

$

32.5

 

Interest on projected benefit obligation

 

 

31.1

 

 

 

19.1

 

Expected return on assets

 

 

(57.5

)

 

 

(48.7

)

Amortization of prior service costs

 

 

.3

 

 

 

.1

 

Recognized actuarial loss

 

 

.7

 

 

 

5.6

 

Net pension (income) expense

 

$

(.4

)

 

$

8.6