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PENSION AND OTHER POSTRETIREMENT BENEFITS - Schedule of Economic Assumptions, and Impact of Change in Discount Rate on Benefit Obligation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 29, 2024 | Dec. 31, 2023 | Dec. 25, 2022
Net pension and other postretirement cost |  |  |
Increase in Discount Rate of 0.25% - impact on defined benefit obligation for pension benefits | $ (3,044) |  |
Decrease in Discount Rate of 0.25% - impact on defined benefit obligation for pension benefits | $ 3,205 |  |
Pension Benefits |  |  |
Benefit obligation |  |  |
Discount rate | 4.68% | 4.81% | 5.04%
Net pension and other postretirement cost |  |  |
Discount rate | 4.56% | 4.93% | 3.67%
Expected return on plan assets | 6.17% | 4.95% | 4.68%
Other Benefits |  |  |
Benefit obligation |  |  |
Discount rate | 5.30% | 5.06% | 5.16%
Net pension and other postretirement cost |  |  |
Discount rate | 5.06% | 5.16% | 2.38%

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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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