根据第13或15(d)条提交的季度报告

停止经营停止经营，非经常基础上以公允价值计量的项目-加拿大实体（详细信息）

v2.4.1.9
停止经营停止经营，非经常基础上以公允价值计量的项目-加拿大实体（详细信息）（美元）
除非另有说明，单位为百万
3个月结束
2015年3月31日
加拿大实体[成员]  
停止经营，非经常基础上以公允价值计量的项目[单行项目]  
布鲁姆湖集团的贷款和应收账款，公允价值披露 112.1美元clf_LoanstoandAccountsReceivablesfromBloomLakeGroupFairValueDisclosure
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_CanadianEntitiesMember
布鲁姆湖集团的贷款和应收帐款损失 (476.0)clf_LossesonLoanstoandAccountsReceivablesfromtheBloomLakeGroup
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_CanadianEntitiesMember
布鲁姆湖集团[成员]  
停止经营，非经常基础上以公允价值计量的项目[单行项目]  
或有负债、连带负债、公允价值披露 342.7clf_ContingentLiabilitiesandJointandSeveralLiabilitiesFairValueDisclosure
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_BloomLakeGroupMember
或有负债、连带负债亏损 (342.7)clf_LossesonContingentLiabilitiesandJointandSeveralLiabilities
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_BloomLakeGroupMember
公允价值，投入，第1级[成员]|加拿大实体[成员]  
停止经营，非经常基础上以公允价值计量的项目[单行项目]  
布鲁姆湖集团的贷款和应收账款，公允价值披露 0clf_LoanstoandAccountsReceivablesfromBloomLakeGroupFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_CanadianEntitiesMember
公允价值，输入，第一级[成员]|布鲁姆湖集团[成员]  
停止经营，非经常基础上以公允价值计量的项目[单行项目]  
或有负债、连带负债、公允价值披露 0clf_ContingentLiabilitiesandJointandSeveralLiabilitiesFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_BloomLakeGroupMember
公允价值，投入，第2级[成员]|加拿大实体[成员]  
停止经营，非经常基础上以公允价值计量的项目[单行项目]  
布鲁姆湖集团的贷款和应收账款，公允价值披露 0clf_LoanstoandAccountsReceivablesfromBloomLakeGroupFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_CanadianEntitiesMember
公允价值，输入，第2级[成员]| Bloom Lake Group[成员]  
停止经营，非经常基础上以公允价值计量的项目[单行项目]  
或有负债、连带负债、公允价值披露 0clf_ContingentLiabilitiesandJointandSeveralLiabilitiesFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_BloomLakeGroupMember
公允价值，投入，第3级[成员]|加拿大实体[成员]  
停止经营，非经常基础上以公允价值计量的项目[单行项目]  
布鲁姆湖集团的贷款和应收账款，公允价值披露 112.1clf_LoanstoandAccountsReceivablesfromBloomLakeGroupFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_CanadianEntitiesMember
公允价值，输入，第3级[成员]| Bloom Lake Group[成员]  
停止经营，非经常基础上以公允价值计量的项目[单行项目]  
或有负债、连带负债、公允价值披露 342.7美元clf_ContingentLiabilitiesandJointandSeveralLiabilitiesFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= clf_BloomLakeGroupMember