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Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2023
Retirement Benefits [Abstract]  
Schedule of Changes in Accumulated Postretirement Benefits Obligations
Changes in Accumulated Postretirement Benefit Obligations:20232022
Obligation at the Beginning of Year$1,530 $1,592 
Unrecognized Loss (Gain)187 (71)
Components of Net Periodic Postretirement Benefit Cost
Service Cost101 105 
Interest Cost71 35 
Net Expected Benefit Payments(142)(131)
Amendments — 
Obligation at End of Year$1,747 $1,530 
Schedule of Components of Postretirement Benefit Expense
Components of Postretirement Benefit Expense:202320222021
Service Cost$101 $105 $119 
Interest Cost71 35 28 
Amortization of Prior Service Costs(3)(2)(2)
Amortization of Unrecognized Net (Gain) Loss32 43 55 
Net Postretirement Benefit Expense201 181 200 
Net Gain (Loss) During Period Recognized in Other Comprehensive Income (Loss)158 (112)(121)
Total Recognized in Net Postretirement Benefit Expense and Other Comprehensive Income$359 $69 $79 
Schedule of Assumptions Used to Determine Net Periodic Cost and Benefit Obligations
Assumptions Used to Determine Net Periodic Cost and Benefit Obligations:202320222021
Discount Rate4.64 %4.83 %2.31 %
Schedule of Assumption of Health Care Cost Trend Rates at Year-end
Assumed Health Care Cost Trend Rates at Year-end:20232022
Health Care Cost Trend Rate Assumed for Next Year8.00 %7.50 %
Rate that the Cost Trend Rate Gradually Declines to4.50 %4.50 %
Year that the Rate Reaches the Rate it is Assumed to Remain at20302028
Schedule of Estimated Future Benefits
The following postretirement benefit payments, which reflect expected future service, are expected to be paid:
2024$169 
2025129 
2026167 
2027177 
2028184 
2029-2033931