REVENUE (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | 12 Months Ended | |||
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Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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Revenues | $ 555.6 | $ 741.8 | $ 1,455.8 | $ 1,636.1 | ||
Contract with Customer, Liability, Revenue Recognized | 42.8 | $ 51.3 | ||||
Up-front Payment Arrangement [Member] | ||||||
Contract with Customer, Liability | 5.5 | 5.5 | 8.2 | |||
Not Designated as Hedging Instrument [Member] | ||||||
Revenues | (40.9) | 135.9 | 43.4 | 334.4 | ||
Other Current Liabilities [Member] | ||||||
Contract with Customer, Liability | 12.8 | 12.8 | 12.8 | |||
Other Noncurrent Liabilities [Member] | ||||||
Contract with Customer, Liability, Noncurrent | $ 30.0 | $ 42.8 | $ 30.0 | $ 42.8 | $ 38.5 | $ 51.4 |
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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