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PENSION AND OTHER POSTRETIREMENT BENEFITS - Schedule of Economic Assumptions and Impact of Change in Discount Rate on Benefit Obligation (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 26, 2023 | Dec. 31, 2023
Pension Benefits |  |  |
Assumptions used to measure benefit obligation at end of period: |  |  |
Discount rate | 5.15% |  | 4.81%
Assumptions used to measure net pension and other postretirement cost: |  |  |
Discount rate | 4.81% | 5.04% |
Expected return on plan assets | 5.05% | 4.97% |
Other Benefits |  |  |
Assumptions used to measure benefit obligation at end of period: |  |  |
Discount rate | 5.27% |  | 5.06%
Assumptions used to measure net pension and other postretirement cost: |  |  |
Discount rate | 5.06% | 5.16% |

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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 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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