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Retirement Benefits (Details 3)
Dec. 31, 2023
Jan. 01, 2023
Pension Benefits [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 5.60% 5.55%
Rate of increase in future compensation levels 3.00% 3.00%
Other Postretirement Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Discount rate 5.40% 5.45%
Rate of increase in future compensation levels 0.00% 0.00%