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EMPLOYEE AND POSTRETIREMENT BENEFIT PLANS - Awarded Shares of Restricted Stock Under Stock Incentive Plan (Details) - shares | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Restricted Stock | Independent Directors Stock Incentive Plan | Director [Member] |  |
STOCK-BASED COMPENSATION PLANS |  |
Shares awarded (in shares) | 9,588 | 10,989
Restricted Stock | Stock Incentive Plan |  |
STOCK-BASED COMPENSATION PLANS |  |
Shares awarded (in shares) | 78,243 | 78,391
Restricted Stock | Stock Incentive Plan | Employees |  |
STOCK-BASED COMPENSATION PLANS |  |
Shares awarded (in shares) | 51,638 | 50,178
Performance Shares | Stock Incentive Plan | Employees |  |
STOCK-BASED COMPENSATION PLANS |  |
Shares awarded (in shares) | 17,017 | 17,224

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- Definition Number of shares issued under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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