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EMPLOYEE BENEFIT PLANS - Weighted Average Assumptions Used to Determine Benefit Obligation (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Discount rate |  |  |  |
Discount rate | 4.74% | 2.69% | 2.47% | 3.19%
Pension Benefits |  |  |  |
Discount rate |  |  |  |
Discount rate | 4.74% | 2.69% |  |
Health Care Benefits |  |  |  |
Discount rate |  |  |  |
Discount rate | 5.17% | 2.85% |  |
Assumed health care cost trend rates at December 31: |  |  |  |
Health care cost trend rate assumed for next year | 5.93% | 6.44% |  |
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) | 4.13% | 4.08% |  |
Year that the rate reaches the ultimate trend rate | 2054 | 2065 |  |

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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