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Retirement Benefit Plans (Details 4)	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Discount rate for other postretirement plan	5.65%	5.04%
Discount rate for supplemental pension plans	5.16%	4.72%
Bottom [Member] | Pension Benefit Plans and Other Postretirement Benefit Plan [Member]
Discount rate	5.56%	4.99%
Top [Member] | Pension Benefit Plans and Other Postretirement Benefit Plan [Member]
Discount rate	5.59%	5.00%

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- References

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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