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BENEFIT PLANS - Asset Allocation Ranges and Actual Allocation, USRIP) (Details) - Other Benefits - U.S. | Dec. 31, 2023 | Dec. 31, 2022
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U.S. Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual | 11.30% | 8.50%
International Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual | 9.80% | 7.70%
Private Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual | 3.80% | 3.30%
Hedge Funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual | 0.00% | 0.00%
Real Assets |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual | 1.30% | 1.20%
Fixed Income |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual | 67.00% | 78.80%
Cash |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Actual | 6.80% | 0.50%
Minimum | U.S. Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.00% | 0.00%
Minimum | International Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.00% | 0.00%
Minimum | Private Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.00% | 0.00%
Minimum | Hedge Funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.00% | 0.00%
Minimum | Real Assets |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.00% | 0.00%
Minimum | Fixed Income |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.65% | 0.65%
Minimum | Cash |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.00% | 0.00%
Maximum | U.S. Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.20% | 0.20%
Maximum | International Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.10% | 0.10%
Maximum | Private Equity |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.10% | 0.10%
Maximum | Hedge Funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.10% | 0.10%
Maximum | Real Assets |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.10% | 0.10%
Maximum | Fixed Income |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 1.00% | 1.00%
Maximum | Cash |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Range | 0.15% | 0.15%

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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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- Definition Percentage of actual 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/2009/role/commonPracticeRef -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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