Other Postretirement Benefits - Schedule of Assumptions Used (Details) - Other Postretirement Benefit Plans	12 Months Ended
	Dec. 31, 2022	Dec. 26, 2021	Dec. 27, 2020
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5.55%	2.55%
Rate of increase in compensation levels	3.50%	3.50%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate for determining projected benefit obligation	2.55%	2.01%	2.94%
Discount rate in effect for determining service cost	2.58%	2.09%	3.04%
Discount rate in effect for determining interest cost	1.91%	1.38%	2.55%
Estimated increase in compensation level	3.50%	3.50%	3.50%