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LONG-TERM DEBT - Additional Information (Narrative) (Details) - USD ($) $ in Billions | Dec. 31, 2020 | Dec. 31, 2019
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Debt Disclosure [Abstract] |  |
Weighted average interest rate | 5.50% | 6.40%
Aggregate market value of debt | $ 6.2 | $ 6.1

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- References No definition available. + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
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- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
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