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EMPLOYEE BENEFIT PLANS - Valuation Assumptions (Details) | Dec. 31, 2021 | Dec. 31, 2020
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Fixed Income |  |
Employee benefit plans |  |
Long-term rate of return on plan assets | 3.34% |
Short-term cash investments |  |
Employee benefit plans |  |
Long-term rate of return on plan assets | 2.35% |
Pension Benefits |  |
Employee benefit plans |  |
Discount rate | 3.28% | 3.08%
Long-term rate of return on plan assets | 6.34% | 6.50%
Rate of compensation increases | 4.25% | 4.00%
Cost of living adjustment | 2.20% | 2.10%
Pension Benefits | SERP |  |
Employee benefit plans |  |
Discount rate | 3.18% | 2.97%
Rate of compensation increases | 5.00% | 5.00%
Pension Benefits | Other Benefits |  |
Employee benefit plans |  |
Discount rate | 0.00% | 0.00%
Other Benefits |  |
Employee benefit plans |  |
Discount rate | 0.00% | 0.00%
Long-term rate of return on plan assets | 5.88% | 6.00%
Rate of compensation increases | 0.00% | 0.00%
Cost of living adjustment | 0.00% | 0.00%
Other Benefits | SERP |  |
Employee benefit plans |  |
Discount rate | 0.00% | 0.00%
Rate of compensation increases | 0.00% | 0.00%
Other Benefits | Other Benefits |  |
Employee benefit plans |  |
Discount rate | 3.27% | 3.03%

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- Definition Represents the cost of living adjustment, an assumption used in determining the benefit obligation for the benefit plans. + References No definition available. + Details
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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested included in the benefit obligation. + References No definition available. + Details
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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 http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related 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)(2) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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