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EMPLOYEE BENEFIT PLANS - Investment of Plan Assets (Details) - Pension Benefits | Dec. 31, 2021 | Dec. 31, 2020
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Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Percentage of Plan Assets | 100.00% | 100.00%
Domestic equity securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Percentage of Plan Assets | 29.00% | 44.00%
International equity securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Percentage of Plan Assets | 18.00% | 30.00%
Domestic fixed income securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Percentage of Plan Assets | 51.00% | 21.00%
International fixed income securities |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Percentage of Plan Assets | 0.00% | 3.00%
Real estate fund |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Percentage of Plan Assets | 2.00% | 2.00%
Defined Benefit Plan, Equity Securities | Maximum |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Percentage of Plan Assets | 80.00% |

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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 http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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