EMPLOYEE BENEFIT PLANS - pension plan asset allocation (Details) - Defined benefit pension plan [Member] |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Target Allocation 2019 (in percent) | 100.00% | |
| Percentage of Plan Assets at Year-End (in percent) | 100.00% | 100.00% |
| Equity Securities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Target Allocation 2019 (in percent) | 65.00% | |
| Percentage of Plan Assets at Year-End (in percent) | 72.00% | 67.00% |
| Debt Securities [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Target Allocation 2019 (in percent) | 30.00% | |
| Percentage of Plan Assets at Year-End (in percent) | 19.00% | 21.00% |
| Cash and Cash Equivalents [Member] | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Target Allocation 2019 (in percent) | 5.00% | |
| Percentage of Plan Assets at Year-End (in percent) | 9.00% | 12.00% |
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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. No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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