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EARNINGS PER SHARE (Earnings Per Share Computation) (Details) (USD $)
In Millions, except Share data in Thousands, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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| Income (Loss) from Continuing Operations Attributable to Parent | $ 168.7us-gaap_IncomeLossFromContinuingOperations | $ 70.1us-gaap_IncomeLossFromContinuingOperations |
| LOSS FROM DISCONTINUED OPERATIONS, net of tax | (928.5)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (140.4)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax |
| Net Loss Attributable to Cliffs Shareholders | (759.8)us-gaap_NetIncomeLoss | (70.3)us-gaap_NetIncomeLoss |
| PREFERRED STOCK DIVIDENDS | (12.8)us-gaap_DividendsPreferredStock | (12.8)us-gaap_DividendsPreferredStock |
| NET INCOME ATTRIBUTABLE TO CLIFFS COMMON SHAREHOLDERS | (772.6)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | (83.1)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |
| Earnings (Loss) Per Common Share Attributable to Cliffs Common Shareholders - Basic | Ìý | Ìý |
| Continuing operations | $ 1.02us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 0.37us-gaap_IncomeLossFromContinuingOperationsPerBasicShare |
| Discontinued operations | $ (6.06)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare | $ (0.92)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare |
| Earnings (Loss) per Common Share Attributable to Cliffs Common Shareholders - Basic: | $ (5.04)us-gaap_EarningsPerShareBasic | $ (0.55)us-gaap_EarningsPerShareBasic |
| Earnings (Loss) Per Common Share Attributable to Cliffs Shareholders - Diluted | Ìý | Ìý |
| Continuing operations | $ 0.94us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 0.37us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare |
| Discontinued operations | $ (5.20)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare | $ (0.91)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare |
| Earnings (Loss) per Common Share Attributable to Cliffs Common Shareholders - Diluted: | $ (4.26)us-gaap_EarningsPerShareDiluted | $ (0.54)us-gaap_EarningsPerShareDiluted |
| Weighted Average Number of Shares: | Ìý | Ìý |
| Basic | 153,185us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 153,040us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
| Depositary Shares | 25,215clf_WeightedAverageNumberOfSharesOustandingDepositary | 0clf_WeightedAverageNumberOfSharesOustandingDepositary |
| Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements | 296us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 613us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements |
| Diluted | 178,696us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 153,653us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
| Preferred Class A [Member] | Ìý | Ìý |
| PREFERRED STOCK DIVIDENDS |
$ (12.8)us-gaap_DividendsPreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredClassAMember |
$ (12.8)us-gaap_DividendsPreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredClassAMember |
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- Definition
Weighted Average Number of Shares Oustanding, Depositary No definition available.
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- Definition
Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation. No definition available.
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- Definition
Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation. No definition available.
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- Definition
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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