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Retirement Plans, Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost, Other Postretirement Benefits (Details) - Other Postretirement Benefits [Member]
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Weighted average assumptions used to determine net periodic benefit cost [Abstract]      
Discount rate 3.00% 2.80% 3.50%
Health care cost trend rate [Abstract]      
Initial rate 6.25% 6.50% 6.75%
Ultimate rate 5.00% 5.00% 5.00%
Years to ultimate 2027 2025 2025