ACQUISITION OF AK STEEL (Assets and Liabilities Assumed Tables) (Details) - USD ($) $ in Millions |
Mar. 31, 2020 |
Dec. 31, 2019 |
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| Business Acquisition [Line Items] | Ìý | Ìý |
| Goodwill | $ 143.3 | $ 2.1 |
| AK Steel Holding Corporation [Member] | Ìý | Ìý |
| Business Acquisition [Line Items] | Ìý | Ìý |
| Cash and cash equivalents | 37.7 | Ìý |
| Accounts receivable | 666.0 | Ìý |
| Inventories | 1,562.8 | Ìý |
| Other current assets | 67.5 | Ìý |
| Property, plant and equipment | 2,184.4 | Ìý |
| Intangible assets | 163.0 | Ìý |
| Right-of-use asset, operating lease | 225.9 | Ìý |
| Other non-current assets | 85.9 | Ìý |
| Accounts payable | (636.3) | Ìý |
| Accrued liabilities | (222.5) | Ìý |
| Other current liabilities | (181.8) | Ìý |
| Long-term debt | (1,179.4) | Ìý |
| Deferred income taxes | (19.7) | Ìý |
| Operating lease liability, non-current | (188.1) | Ìý |
| Intangible liability | (140.0) | Ìý |
| Pension and OPEB liabilities | (873.0) | Ìý |
| Asset retirement obligations | (13.9) | Ìý |
| Other non-current liabilities | (144.2) | Ìý |
| Net identifiable assets acquired | 1,394.3 | Ìý |
| Goodwill | 141.2 | Ìý |
| Total net assets acquired | $ 1,535.5 | Ìý |
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Asset Retirement Obligations No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accrued Liabilities No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Income Taxes No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Liability No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease Liability Non-current No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Pension and OPEB Liabilities No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed,Right-of-use Asset, Operating Lease No definition available.
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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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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of inventory recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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