Retirement Benefits (Estimated future benefit payments) (Details) $ in Thousands	Dec. 29, 2023 USD ($)
Pension Benefits
Estimated future benefit payments
2024	$ 7,165
2025	6,455
2026	9,455
2027	11,380
2028	11,270
Years 2029-2033	67,316
Postretirement Medical Benefits
Estimated future benefit payments
2024	1,745
2025	1,717
2026	1,689
2027	1,697
2028	1,670
Years 2029-2033	$ 7,974

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

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

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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