REVENUES - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended |
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Sep. 30, 2020 |
Sep. 30, 2020 |
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| Customer Supply Agreement | Sales | Ìý | Ìý |
| Disaggregation of Revenue [Line Items] | Ìý | Ìý |
| Derivative revenue | $ 9 | $ 14 |
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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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