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Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs
 9 Months Ended
Sep. 30, 2024
Retirement Benefits [Abstract]  
Components of Pension and Other Post-employment Benefit (OPEB) Plans Net Periodic Benefit Costs COMPONENTS OF PENSION AND OTHER POST-EMPLOYMENT BENEFIT (OPEB) PLANS NET PERIODIC BENEFIT COSTS:
The components of Net Periodic Benefit Cost (Credit) are as follows:
Pension BenefitsOther Post-Employment Benefits
Three Months Ended
September 30,		Nine Months Ended
September 30,		Three Months Ended
September 30,		Nine Months Ended
September 30,
20242023202420232024202320242023
Service Cost$302 $304 $906 $913 $— $— $— $— 
Interest Cost6,431 6,756 19,293 20,270 2,758 3,261 8,274 9,783 
Expected Return on Plan Assets(7,991)(9,867)(23,973)(29,602)— — — — 
Amortization of Prior Service Credits— — — — (601)(601)(1,804)(1,804)
Amortization of Actuarial Loss (Gain)1,567 185 4,699 555 (70)— (209)— 
Net Periodic Benefit Cost (Credit)$309 ($2,622)$925 ($7,864)$2,087 $2,660 $6,261 $7,979 
Expenses (credits) related to pension and other post-employment benefits are reflected in Operating and Other Costs in the Consolidated Statements of Income. Amounts reclassified out of accumulated other comprehensive (loss) income are reflected in Operating and Other Costs in the Consolidated Statements of Income.