|
合并权益变动表（美元）
以百万为单位，共享数据除外，除非另有说明
|
总计
美元($)
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存托股份〔成员〕
美元($)
|
普通股〔成员〕
美元($)
|
超过股份票面价值的资本[成员]
美元($)
|
留存收益〔成员〕
美元($)
|
库务署普通股〔成员〕
美元($)
|
累计其他综合收益（损失）[成员]
美元($)
|
非控股权〔成员〕
美元($)
|
存托股份〔成员〕
美元($)
|
存托股份〔成员〕
超过股份票面价值的资本[成员]
美元($)
|
普通股〔成员〕
|
普通股〔成员〕
超过股份票面价值的资本[成员]
美元($)
|
| 结余，期初为2011年12月31日 |
7039 .7美元us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
|
18.5美元us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
1770美元。8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
4424美元。3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
(336.0美元)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember |
(92.6美元)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember |
1254 .7美元us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 余额，2011年12月31日期初（以股份计） |
|
|
142000000年us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
|
|
|
|
|
|
|
|
|
| 综合损益，扣除税后，包括归属于非控制性权益的部分[摘要] |
|
|
|
|
|
|
|
|
|
|
|
|
| 净收入（亏损） |
(1126 6)us-gaap_ProfitLoss |
|
|
|
(899.4)us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
(227.2)us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 其他综合收益（损失），税后，归属于母公司的部分 |
862.4us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent |
|
|
|
|
|
37.0us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember |
|
|
|
|
|
| 综合损益，税后净额，归属于非控制性权益 |
|
|
|
|
|
|
|
7.6us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 其他综合损益，税后净额 |
44.6us-gaap_OtherComprehensiveIncomeLossNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 养老金和OPEB负债，税后 |
33.8us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 有价证券未实现净亏损，扣除税项 |
(0.5)us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 综合收益（损失）总额 |
(1082 0)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest |
|
|
|
|
|
|
(219.6)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 从非控股股东手中购买子公司股份 |
(2.1)us-gaap_MinorityInterestDecreaseFromRedemptions |
|
|
|
|
|
|
(2.1)us-gaap_MinorityInterestDecreaseFromRedemptions
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 子公司非控制权益的未分配损失 |
0.4clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests |
|
|
|
|
|
|
0.4clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 非控制权益对子公司的出资 |
104.4us-gaap_ProceedsFromMinorityShareholders |
|
|
1.6us-gaap_ProceedsFromMinorityShareholders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
|
|
|
102.8us-gaap_ProceedsFromMinorityShareholders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 期间发行的股票，价值，收购 |
(8.0)us-gaap_StockIssuedDuringPeriodValueAcquisitions |
|
|
|
|
|
|
(8.0)us-gaap_StockIssuedDuringPeriodValueAcquisitions
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 股票和其他激励计划（以股票形式） |
|
|
500000年us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
|
|
|
|
|
|
|
|
|
| 股票和其他激励计划 |
15.7us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation |
|
|
2.3us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
|
13.4us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember |
|
|
|
|
|
|
| 普通股股息（每股0.60美元） |
(307.2)us-gaap_DividendsCommonStock |
|
|
|
(307.2)us-gaap_DividendsCommonStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
|
|
|
|
|
| 优先股股息（每股存托股票1.66美元） |
0us-gaap_DividendsPreferredStock |
|
|
|
|
|
|
|
|
|
|
|
| 余额，截至2012年12月31日 |
5,760.9us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
|
18.5us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
达到1774us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
达到3217us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
(322.6)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember |
(55.6)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember |
1,128.2us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 余额，2012年12月31日期末（以股份计） |
|
|
142500000年us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
|
|
|
|
|
|
|
|
|
| 综合损益，扣除税后，包括归属于非控制性权益的部分[摘要] |
|
|
|
|
|
|
|
|
|
|
|
|
| 净收入（亏损） |
361.8us-gaap_ProfitLoss |
|
|
|
413.5us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
(51.7)us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 其他综合收益（损失），税后，归属于母公司的部分 |
(356.2)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent |
|
|
|
|
|
(57.3)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember |
|
|
|
|
|
| 综合损益，税后净额，归属于非控制性权益 |
|
|
|
|
|
|
|
30.5us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 其他综合损益，税后净额 |
(26.8)us-gaap_OtherComprehensiveIncomeLossNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 养老金和OPEB负债，税后 |
208.3us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 有价证券未实现净亏损，扣除税项 |
3.1us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 综合收益（损失）总额 |
335.0us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest |
|
|
|
|
|
|
(21.2)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 股权发行（以股份形式） |
|
29300000年us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= clf_DepositarySharesMember |
10400000年us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
|
|
|
|
|
|
|
|
|
| 发行股票 |
285.3us-gaap_StockIssuedDuringPeriodValueNewIssues |
731.3us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= clf_DepositarySharesMember |
1.3us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
|
|
|
|
|
709.4us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementClassOfStockAxis
= clf_DepositarySharesMember |
(21.9)us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementClassOfStockAxis
= clf_DepositarySharesMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
|
284.0us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
| 从非控股股东手中购买子公司股份 |
|
|
|
295.4us-gaap_MinorityInterestDecreaseFromRedemptions
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
(82.7)us-gaap_MinorityInterestDecreaseFromRedemptions
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
|
|
|
|
|
| 子公司非控制权益的未分配损失 |
17.0clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests |
|
|
|
|
|
|
17.0clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 非控制权益对子公司的出资 |
5.2us-gaap_ProceedsFromMinorityShareholders |
|
|
0.2us-gaap_ProceedsFromMinorityShareholders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
(0.6)us-gaap_ProceedsFromMinorityShareholders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
5.6us-gaap_ProceedsFromMinorityShareholders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 期间发行的股票，价值，收购 |
(102.1)us-gaap_StockIssuedDuringPeriodValueAcquisitions |
|
|
|
|
|
|
(314.8)us-gaap_StockIssuedDuringPeriodValueAcquisitions
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 股票和其他激励计划（以股票形式） |
|
|
300000年us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
|
|
|
|
|
|
|
|
|
| 股票和其他激励计划 |
14.2us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation |
|
|
(2.9)us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
|
17.1us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember |
|
|
|
|
|
|
| 普通股股息（每股0.60美元） |
(91.9)us-gaap_DividendsCommonStock |
|
|
|
(91.9)us-gaap_DividendsCommonStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
|
|
|
|
|
| 优先股股息（每股存托股票1.66美元） |
(48.7)us-gaap_DividendsPreferredStock |
|
|
|
(48.7)us-gaap_DividendsPreferredStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
|
|
|
|
|
| 优先股、流通股 |
|
29300000年us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= clf_DepositarySharesMember |
|
|
|
|
|
|
|
|
|
|
| 余额，截止2013年12月31日 |
6,884.3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
731.3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= clf_DepositarySharesMember |
19.8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
2,329.5us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
3,407.3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
(305.5)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember |
(112.9)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember |
814.8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 余额，2013年12月31日期末（以股计） |
153126291年us-gaap_CommonStockSharesOutstanding |
|
153200000年us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
|
|
|
|
|
|
|
|
|
| 综合损益，扣除税后，包括归属于非控制性权益的部分[摘要] |
|
|
|
|
|
|
|
|
|
|
|
|
| 净收入（亏损） |
(8311 6)us-gaap_ProfitLoss |
|
|
|
(7224。2)us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
(1087)us-gaap_ProfitLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 其他综合收益（损失），税后，归属于母公司的部分 |
7357年1。us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent |
|
|
|
|
|
(132.9)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember |
|
|
|
|
|
| 综合损益，税后净额，归属于非控制性权益 |
|
|
|
|
|
|
|
(4.8)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 其他综合损益，税后净额 |
(137.7)us-gaap_OtherComprehensiveIncomeLossNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 养老金和OPEB负债，税后 |
(91.0)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 有价证券未实现净亏损，扣除税项 |
(7.2)us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax |
|
|
|
|
|
|
|
|
|
|
|
| 综合收益（损失）总额 |
(8449。3)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest |
|
|
|
|
|
|
(1092。2)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 子公司非控制权益的未分配损失 |
(25.5)clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests |
|
|
|
|
|
|
(25.5)clf_UndistributedEarningsLossesRelatedToNoncontrollingInterests
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 非控制权益对子公司的出资 |
(0.1)us-gaap_ProceedsFromMinorityShareholders |
|
|
|
|
|
|
(0.1)us-gaap_ProceedsFromMinorityShareholders
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
|
|
|
|
| 股票和其他激励计划 |
0.1us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation |
|
|
(19.7)us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
|
19.8us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember |
|
|
|
|
|
|
| 普通股股息（每股0.60美元） |
(92.5)us-gaap_DividendsCommonStock |
|
|
|
(92.5)us-gaap_DividendsCommonStock
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
|
|
|
|
|
| 优先股股息（每股存托股票1.66美元） |
(51.2)us-gaap_DividendsPreferredStock |
|
|
|
|
|
|
|
|
|
|
|
| 优先股股息 |
(51.3)clf_PreferredStockDividends |
|
|
|
(51.3)clf_PreferredStockDividends
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
|
|
|
|
|
|
|
| 优先股、流通股 |
|
29300000年us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= clf_DepositarySharesMember |
|
|
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| 余额，截止2014年12月31日 |
(1734。3)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
731.3us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= clf_DepositarySharesMember |
19.8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
2,309.8us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember |
(3960 .7美元)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_RetainedEarningsMember |
(285.7)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_TreasuryStockMember |
(245.8)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember |
(303.0)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember |
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| 余额，2014年12月31日期末（以股份计） |
153246754年us-gaap_CommonStockSharesOutstanding |
|
153200000年us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
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| 结余，期初为2014年9月30日 |
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| 综合损益，扣除税后，包括归属于非控制性权益的部分[摘要] |
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| 优先股股息（每股存托股票1.66美元） |
(12.8)us-gaap_DividendsPreferredStock |
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| 优先股、流通股 |
|
29300000年us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= clf_DepositarySharesMember |
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| 余额，截止2014年12月31日 |
(1734美元。3)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
731.3美元us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= clf_DepositarySharesMember |
19.8美元us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
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| 余额，2014年12月31日期末（以股份计） |
153246754年us-gaap_CommonStockSharesOutstanding |
|
153200000年us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember |
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