根据第13和15(d)条提交的年度报告

退休金及其他退休后福利（估计未来福利）（详情）

v2.4.1.9
退休金及其他退休后福利（预计未来福利支付）（详情）（美元）
除非另有说明，单位为百万
12个月结束
2014年12月31日
设定受益计划及其他退休后福利计划表  
固定收益计划预期净定期收益成本 29.6美元clf_DefinedBenefitPlanExpectedNetPeriodicBenefitCost
退休金福利〔成员〕  
设定受益计划及其他退休后福利计划表  
固定收益计划预期净定期收益成本 23.6clf_DefinedBenefitPlanExpectedNetPeriodicBenefitCost
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
2015 89.3us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
2016 77.7us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
2017 78.1us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
2018 79.3us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
2019 78.6us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
2020 - 2024 402.4us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
其他退休福利计划、设定受益计划〔成员〕  
设定受益计划及其他退休后福利计划表  
固定收益计划预期净定期收益成本 6.0clf_DefinedBenefitPlanExpectedNetPeriodicBenefitCost
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
公司福利总额〔成员〕  
设定受益计划及其他退休后福利计划表  
2015 23.1us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_GrossCompanyBenefitsMember
2016 23.0us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_GrossCompanyBenefitsMember
2017 23.2us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_GrossCompanyBenefitsMember
2018 23.3us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_GrossCompanyBenefitsMember
2019 22.9us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_GrossCompanyBenefitsMember
2020 - 2024 110.7us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_GrossCompanyBenefitsMember
减少医疗保险津贴[成员]  
设定受益计划及其他退休后福利计划表  
2015 0.9us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_MedicarePartDSubsidyMember
2016 １.0us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_MedicarePartDSubsidyMember
2017 1.1us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_MedicarePartDSubsidyMember
2018 1.3us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_MedicarePartDSubsidyMember
2019 1.4us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_MedicarePartDSubsidyMember
2020 - 2024 8.6us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_MedicarePartDSubsidyMember
公司付款净额〔成员〕  
设定受益计划及其他退休后福利计划表  
2015 22.2us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_NetCompanyPaymentsMember
2016 22.0us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_NetCompanyPaymentsMember
2017 22.1us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_NetCompanyPaymentsMember
2018 22.0us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_NetCompanyPaymentsMember
2019 21.5us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_NetCompanyPaymentsMember
2020 - 2024 102.1美元us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
/ clf_EstimatedFutureBenefitPaymentsAxis
= clf_NetCompanyPaymentsMember