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SHAREHOLDERS' EQUITY Narrative (Details)
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Mar. 31, 2015
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| Empire [Member] | Ìý |
| Noncontrolling Interest, Ownership Percentage by Parent |
79.00%us-gaap_MinorityInterestOwnershipPercentageByParent / clf_NameofOperationAxis = clf_EmpireMember |
| Tilden [Member] | Ìý |
| Noncontrolling Interest, Ownership Percentage by Parent |
85.00%us-gaap_MinorityInterestOwnershipPercentageByParent / clf_NameofOperationAxis = clf_TildenMember |
| Bloom Lake [Member] | Ìý |
| Noncontrolling Interest, Ownership Percentage by Parent |
82.80%us-gaap_MinorityInterestOwnershipPercentageByParent / clf_NameofOperationAxis = clf_BloomLakeMember |
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- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
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- Details
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- Details
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- Details
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