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PENSION AND OTHER BENEFIT PLANS - Weighted-average Assumptions Used to Determine Net Periodic Benefit Cost (Details) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Year 2024 |  |  |
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost |  |  |
Rate of compensation increase | 3.50% |  |
Pension Benefits |  |  |
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost |  |  |
Discount rate | 5.40% | 3.10% | 2.80%
Expected return on plan assets | 6.70% | 6.70% | 7.00%
Rate of compensation increase |  |  | 3.50%
Pension Benefits | Year 2022 |  |  |
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost |  |  |
Rate of compensation increase |  | 4.00% |
Pension Benefits | Year 2023 |  |  |
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost |  |  |
Rate of compensation increase | 4.50% | 3.50% |
while employed |  |  |
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost |  |  |
Interest crediting rates | 6.00% | 6.00% | 6.00%
after termination |  |  |
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost |  |  |
Interest crediting rates | 3.55% | 1.94% | 1.42%
Post-retirement Benefits |  |  |
Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost |  |  |
Discount rate | 5.40% | 3.10% | 2.80%

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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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- Definition Weighted-average interest crediting rate used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, cash balance and other defined benefit plans with promised interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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