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Pension Benefits and Postretirement Benefits Other Than Pensions - Narrative (Details) - employees
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2023
Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Number of participants and beneficiaries 3,100  
Percentage of Compensation, Defined Benefit Plan Employee Contribution   3.00%
Postretirement Benefits Other than Pensions    
Defined Benefit Plan Disclosure [Line Items]    
Number of retired employees covered 400  
Number of active employees covered 500