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PENSION AND OTHER POSTRETIREMENT PLANS - Schedule of Allocation of Plan Assets (Details) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Weighted Average Expected Long-Term Rate of Return | 8.85% |  |
Debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Weighted Average Expected Long-Term Rate of Return | 3.00% |  |
Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Plan Assets at Year End | 100.00% | 100.00% |
Weighted Average Expected Long-Term Rate of Return | 6.50% | 6.50% | 6.50%
Pension Benefits | Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Plan Assets at Year End | 63.00% | 60.00% |
Weighted Average Expected Long-Term Rate of Return | 8.85% |  |
Pension Benefits | Equity securities | Minimum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 55.00% |  |
Pension Benefits | Equity securities | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 65.00% |  |
Pension Benefits | Debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Plan Assets at Year End | 34.00% | 39.00% |
Weighted Average Expected Long-Term Rate of Return | 3.00% |  |
Pension Benefits | Debt securities | Minimum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 35.00% |  |
Pension Benefits | Debt securities | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 45.00% |  |
Pension Benefits | Other |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Plan Assets at Year End | 3.00% | 1.00% |
Weighted Average Expected Long-Term Rate of Return | 0.10% |  |
Pension Benefits | Other | Minimum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 5.00% |  |
Pension Benefits | Other | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 10.00% |  |
SERP Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Plan Assets at Year End | 100.00% | 100.00% |
Weighted Average Expected Long-Term Rate of Return | 6.50% | 6.50% | 6.50%
SERP Benefits | Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Plan Assets at Year End | 65.00% | 62.00% |
Weighted Average Expected Long-Term Rate of Return | 8.85% |  |
SERP Benefits | Equity securities | Minimum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 55.00% |  |
SERP Benefits | Equity securities | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 65.00% |  |
SERP Benefits | Debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Plan Assets at Year End | 33.00% | 35.00% |
Weighted Average Expected Long-Term Rate of Return | 3.00% |  |
SERP Benefits | Debt securities | Minimum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 35.00% |  |
SERP Benefits | Debt securities | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 45.00% |  |
SERP Benefits | Other |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of Plan Assets at Year End | 2.00% | 3.00% |
Weighted Average Expected Long-Term Rate of Return | 0.10% |  |
SERP Benefits | Other | Minimum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 5.00% |  |
SERP Benefits | Other | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Target Allocation | 10.00% |  |

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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 Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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