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PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Target Allocation and Actual Asset Allocations for Pension and VEBA Plan Assets (Details) | Dec. 31, 2022 | Dec. 31, 2021
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Pension Benefits |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 100.00% |
Percentage of Plan Assets | 100.00% | 100.00%
Pension Benefits | Equity securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 33.30% |
Percentage of Plan Assets | 36.10% | 47.60%
Pension Benefits | Fixed income |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 41.60% |
Percentage of Plan Assets | 40.90% | 34.60%
Pension Benefits | Hedge funds |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 9.20% |
Percentage of Plan Assets | 2.70% | 2.20%
Pension Benefits | Private equity |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 3.30% |
Percentage of Plan Assets | 3.30% | 2.70%
Pension Benefits | Structured credit |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 2.60% |
Percentage of Plan Assets | 6.90% | 5.60%
Pension Benefits | Real estate |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 10.00% |
Percentage of Plan Assets | 8.20% | 5.60%
Pension Benefits | Absolute return fixed income |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 0.00% |
Percentage of Plan Assets | 1.90% | 1.70%
OPEB |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 100.00% |
Percentage of Plan Assets | 100.00% | 100.00%
OPEB | Equity securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 21.90% |
Percentage of Plan Assets | 22.00% | 22.50%
OPEB | Fixed income |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 73.70% |
Percentage of Plan Assets | 67.40% | 66.40%
OPEB | Hedge funds |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 2.20% |
Percentage of Plan Assets | 1.90% | 1.80%
OPEB | Private equity |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 0.00% |
Percentage of Plan Assets | 0.00% | 0.00%
OPEB | Structured credit |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 1.10% |
Percentage of Plan Assets | 1.20% | 1.20%
OPEB | Real estate |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 1.10% |
Percentage of Plan Assets | 1.70% | 2.10%
OPEB | Absolute return fixed income |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
2023 Target Allocation | 0.00% |
Percentage of Plan Assets | 5.80% | 6.00%

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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