PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Annual Contributions To The Pension Plans) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
---|---|---|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
Company contributions | $ 7.3us-gaap_DefinedBenefitPlanContributionsByEmployer | $ 25.5us-gaap_DefinedBenefitPlanContributionsByEmployer |
Expected company contributions, next fiscal year | 6.8us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear | |
Funded percentage | 70.00%us-gaap_DefinedBenefitPlanFundedPercentage | |
Value of VEBA Trust Assets as a Percentage of the Funding Obligation | 0.9clf_ValueOfVebaTrustAssetsAsPercentageOfFundingObligation | |
Pension Benefits [Member] | ||
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
Company contributions |
60.5us-gaap_DefinedBenefitPlanContributionsByEmployer / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_PensionPlansDefinedBenefitMember |
53.7us-gaap_DefinedBenefitPlanContributionsByEmployer / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_PensionPlansDefinedBenefitMember |
Expected company contributions, next fiscal year |
36.8us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_PensionPlansDefinedBenefitMember |
|
Veba Trust [Member] | ||
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
Company contributions |
0us-gaap_DefinedBenefitPlanContributionsByEmployer / clf_OtherBenefitsAxis = clf_VebaTrustMember |
14.6us-gaap_DefinedBenefitPlanContributionsByEmployer / clf_OtherBenefitsAxis = clf_VebaTrustMember |
Expected company contributions, next fiscal year |
0us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear / clf_OtherBenefitsAxis = clf_VebaTrustMember |
|
Direct Payments [Member] | ||
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
Company contributions |
7.3us-gaap_DefinedBenefitPlanContributionsByEmployer / clf_OtherBenefitsAxis = clf_DirectPaymentsMember |
10.9us-gaap_DefinedBenefitPlanContributionsByEmployer / clf_OtherBenefitsAxis = clf_DirectPaymentsMember |
Expected company contributions, next fiscal year |
$ 6.8us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear / clf_OtherBenefitsAxis = clf_DirectPaymentsMember |
X | ||||||||||
- Definition
Value of VEBA Trust Assets as a Percentage of the Funding Obligation that causes the funding obligation to be suspended. No definition available.
|
X | ||||||||||
- Definition
The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition
Plan assets of a defined benefit plan, as a percentage of projected benefit obligation. No definition available.
|
X | ||||||||||
- Details
|
X | ||||||||||
- Definition
Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|