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Benefit Plans - Weighted Average Assumptions Used in the Measurement of the Company's Benefit Obligation and Net Periodic Benefit Cost (Details) | 12 Months Ended
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Dec. 30, 2023 | Dec. 31, 2022 | Dec. 25, 2021
Pension Benefits |  |  |
Weighted average assumptions in benefit obligations calculations [Abstract] |  |  |
Discount rate | 4.40% | 4.80% |
Expected long-term return on plan assets | 4.30% | 5.51% |
Rate of inflation | 3.20% | 3.30% |
Weighted average assumptions in net periodic benefit calculations [Abstract] |  |  |
Discount rate | 4.80% | 1.90% | 1.40%
Expected long-term return on plan assets | 5.51% | 4.96% | 4.69%
Rate of inflation | 3.30% | 3.70% | 3.20%
Other Benefits |  |  |
Weighted average assumptions in benefit obligations calculations [Abstract] |  |  |
Discount rate | 5.96% | 6.08% |
Rate of compensation increases | 5.00% | 5.00% |
Weighted average assumptions in net periodic benefit calculations [Abstract] |  |  |
Discount rate | 6.08% | 3.73% | 2.92%
Rate of compensation increases | 5.00% | 5.00% | 5.00%

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- Definition Assumed rate of inflation in calculating benefit obligations. + References No definition available. + Details
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- Definition Assumed rate of inflation in calculating net periodic benefit cost. + References No definition available. + Details
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- Definition Assumptions used in the calculation of benefit obligations expected long-term return on plan assets. + References No definition available. + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation 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 + Details
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- Definition Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related 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)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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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 + Details
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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, 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 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-8 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related 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)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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