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SHAREHOLDERS' EQUITY Schedule of Shareholders' Equity (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |||
|---|---|---|---|---|
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Mar. 31, 2015
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Mar. 31, 2014
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Dec. 31, 2014
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Dec. 31, 2013
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| Stockholders' Equity Attributable to Parent | $ (1,995.7)us-gaap_StockholdersEquity | Ìý | $ (1,431.3)us-gaap_StockholdersEquity | Ìý |
| Stockholders' Equity Attributable to Noncontrolling Interest | 213.6us-gaap_MinorityInterest | Ìý | (303.0)us-gaap_MinorityInterest | Ìý |
| Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (1,782.1)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 6,835.6us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | (1,734.3)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 6,884.3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
| NET LOSS ATTRIBUTABLE TO CLIFFS SHAREHOLDERS | (759.8)us-gaap_NetIncomeLoss | (70.3)us-gaap_NetIncomeLoss | Ìý | Ìý |
| INCOME (LOSS) ATTRIBUTABLE TO NONCONTROLLING INTEREST | (1.9)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (0.4)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | Ìý | Ìý |
| Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | (761.7)us-gaap_ProfitLoss | (70.7)us-gaap_ProfitLoss | Ìý | Ìý |
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent | (552.2)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent | (12.5)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent | Ìý | Ìý |
| Other Comprehensive Income (Loss), Net of Tax | 196.8us-gaap_OtherComprehensiveIncomeLossNetOfTax | 58.3us-gaap_OtherComprehensiveIncomeLossNetOfTax | Ìý | Ìý |
| OTHER COMPREHENSIVE LOSS (INCOME) ATTRIBUTABLE TO THE NONCONTROLLING INTEREST | 10.8us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | (0.5)us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | Ìý | Ìý |
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | (564.9)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | (12.4)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | Ìý | Ìý |
| Deconsolidation, Gain (Loss), Amount | 528.2us-gaap_DeconsolidationGainOrLossAmount | Ìý | Ìý | Ìý |
| Stock and Other Incentive Plans | 0.6us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | (1.4)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | Ìý | Ìý |
| Preferred share dividends | (12.8)us-gaap_DividendsStock | (36.1)us-gaap_DividendsStock | Ìý | Ìý |
| Undistributed Gains To Noncontrolling Interest | 1.1clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests | 1.2clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests | Ìý | Ìý |
| Cliffs Shareholders Equity [Member] | Ìý | Ìý | Ìý | Ìý |
| Stockholders' Equity Attributable to Parent |
(1,995.7)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
6,019.5us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
(1,431.3)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
6,069.5us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
| NET LOSS ATTRIBUTABLE TO CLIFFS SHAREHOLDERS |
(759.8)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
(70.3)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
Ìý | Ìý |
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent |
207.6us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
57.8us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
Ìý | Ìý |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent |
(552.2)us-gaap_ComprehensiveIncomeNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
(12.5)us-gaap_ComprehensiveIncomeNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
Ìý | Ìý |
| Deconsolidation, Gain (Loss), Amount |
0us-gaap_DeconsolidationGainOrLossAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
Ìý | Ìý | Ìý |
| Stock and Other Incentive Plans |
0.6us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
(1.4)us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
Ìý | Ìý |
| Preferred share dividends |
(12.8)us-gaap_DividendsStock / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
(36.1)us-gaap_DividendsStock / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
Ìý | Ìý |
| Undistributed Gains To Noncontrolling Interest |
0clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
0clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests / us-gaap_StatementEquityComponentsAxis = us-gaap_ParentMember |
Ìý | Ìý |
| Noncontrolling Interest [Member] | Ìý | Ìý | Ìý | Ìý |
| Stockholders' Equity Attributable to Noncontrolling Interest |
213.6us-gaap_MinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
816.1us-gaap_MinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
(303.0)us-gaap_MinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
814.8us-gaap_MinorityInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
| INCOME (LOSS) ATTRIBUTABLE TO NONCONTROLLING INTEREST |
(1.9)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
(0.4)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
Ìý | Ìý |
| Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest |
(10.8)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
0.5us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
Ìý | Ìý |
| OTHER COMPREHENSIVE LOSS (INCOME) ATTRIBUTABLE TO THE NONCONTROLLING INTEREST |
(12.7)us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
0.1us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
Ìý | Ìý |
| Deconsolidation, Gain (Loss), Amount |
528.2us-gaap_DeconsolidationGainOrLossAmount / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
Ìý | Ìý | Ìý |
| Stock and Other Incentive Plans |
0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
0us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
Ìý | Ìý |
| Preferred share dividends |
0us-gaap_DividendsStock / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
0us-gaap_DividendsStock / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
Ìý | Ìý |
| Undistributed Gains To Noncontrolling Interest |
$ 1.1clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
$ 1.2clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
Ìý | Ìý |
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- Definition
Undistributed Earnings Losses Related to Noncontrolling Interests No definition available.
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- Definition
This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the gain (loss) recognized by the parent and included in its attributable portion of net income for the period due to deconsolidation of a subsidiary or derecognition of a group of assets. The gain (loss) recognized and included in the net income attributable to the parent for the period is generally computed as the difference between: (a) the aggregate of: (1) the fair value of any consideration received; (2) the fair value of any retained noncontrolling investment in the former subsidiary at the date the subsidiary was deconsolidated; and (3) the carrying amount of any noncontrolling interest in the former subsidiary (including any accumulated other comprehensive income attributable to the noncontrolling interest) at the date the subsidiary was deconsolidated and (b) the carrying amount of the former subsidiary's assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of paid and unpaid stock dividends declared for classes of stock, for example, but not limited to, common and preferred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). 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
Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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