SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION (Cash Flow Information) (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Disclosure Text Block [Abstract] | Ìý | Ìý | Ìý | Ìý |
| Capital additions | Ìý | $ 689.8 | $ 394.8 | $ 156.0 |
| Non-cash accruals | Ìý | 15.3 | 93.6 | (2.2) |
| Right-of-use asset - finance leases | Ìý | 29.3 | 7.6 | 6.5 |
| Grants | Ìý | (10.8) | (2.5) | 0.0 |
| Payments To Acquire Property Plant And Equipment Net | Ìý | 656.0 | 296.1 | 151.7 |
| Capital expenditure related to discontinued operations | Ìý | 0.0 | 0.1 | 2.8 |
| Taxes paid on income | Ìý | 0.2 | 2.9 | 1.7 |
| Income tax refunds | Ìý | (117.9) | (11.3) | (7.8) |
| Interest paid on debt obligations net of capitalized interest | Ìý | 97.6 | 105.7 | 139.0 |
| Capitalized interest | Ìý | $ 24.8 | $ 6.5 | $ 0.0 |
| Common Stock, Dividends, Per Share, Declared | $ 0.06 | $ 0.27 | $ 0.05 | $ 0 |
| Dividends Payable | $ 16.2 | $ 16.2 | Ìý | Ìý |
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- Definition Government grant rebate No definition available.
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- Definition Payments To Acquire Property Plant And Equipment, Net No definition available.
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- Definition Property, Plant and Equipment, Additions, Including Discontinued Operations No definition available.
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- Definition Amount of capital expenditure attributable to discontinued operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cash paid for interest capitalized, classified as investing activity. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of cash received during the period as refunds for the overpayment of taxes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for finance lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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