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PENSION PLANS (Asset Allocations) (Details) - Pension Plan - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS |  |
Asset allocations by asset category | 100.00% | 100.00%
Equity securities |  |
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS |  |
Asset allocations by asset category | 39.10% | 48.40%
Equity securities included the entity's common stock | $ 0.1 | $ 0.1
Debt Securities |  |
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS |  |
Asset allocations by asset category | 57.50% | 46.90%
Other |  |
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS |  |
Asset allocations by asset category | 3.40% | 4.70%

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- Definition Amount of employer security in which defined benefit plan asset is invested. Includes, but is not limited to, security issued or managed by related party of employer. + 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 (n) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 + Details
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