10-Q Filing

CLEVELAND-CLIFFS INC. CIK: 764065 Q1 2025

Filing Information

Form Type	10-Q
Accession Number	`0000764065-25-000103`
Period End Date	20250331
Filing Date	20250508
Fiscal Year	2025
Fiscal Period	Q1
XBRL Instance	clf-20250331_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 154 Income Statement 80 Cash Flow Statement 122 Stockholders Equity 42 Comprehensive Income 32

Balance Sheet 154 line items

Line Item	Tag	Value	Unit	Period
Common shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.12	USD	Point-in-time
Common shares, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.12	USD	Point-in-time
Common shares, authorized (in shares)	`CommonStockSharesAuthorized`	1.20B	shares	Point-in-time
Common shares, authorized (in shares)	`CommonStockSharesAuthorized`	1.20B	shares	Point-in-time
Common shares, authorized (in shares)	`CommonStockSharesAuthorized`	1.20B	shares	Point-in-time
Common shares, authorized (in shares)	`CommonStockSharesAuthorized`	1.20B	shares	Point-in-time
Cash and Cash Equivalents, at Carrying Value	`CashAndCashEquivalentsAtCarryingValue`	$30.00M	USD	Point-in-time
Cash and Cash Equivalents, at Carrying Value	`CashAndCashEquivalentsAtCarryingValue`	$30.00M	USD	Point-in-time
Common shares, issued (in shares)	`CommonStockSharesIssued`	531.05M	shares	Point-in-time
Common shares, issued (in shares)	`CommonStockSharesIssued`	531.05M	shares	Point-in-time
Cash and Cash Equivalents, at Carrying Value	`CashAndCashEquivalentsAtCarryingValue`	$54.00M	USD	Point-in-time
Cash and Cash Equivalents, at Carrying Value	`CashAndCashEquivalentsAtCarryingValue`	$54.00M	USD	Point-in-time
Cash and Cash Equivalents, at Carrying Value	`CashAndCashEquivalentsAtCarryingValue`	$57.00M	USD	Point-in-time
Cash and Cash Equivalents, at Carrying Value	`CashAndCashEquivalentsAtCarryingValue`	$57.00M	USD	Point-in-time
Common shares, issued (in shares)	`CommonStockSharesIssued`	531.05M	shares	Point-in-time
Common shares, issued (in shares)	`CommonStockSharesIssued`	531.05M	shares	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$1.58B	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$1.58B	USD	Point-in-time
Common shares, outstanding (in shares)	`CommonStockSharesOutstanding`	493.95M	shares	Point-in-time
Common shares, outstanding (in shares)	`CommonStockSharesOutstanding`	493.95M	shares	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$1.80B	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$1.80B	USD	Point-in-time
Common shares, outstanding (in shares)	`CommonStockSharesOutstanding`	494.49M	shares	Point-in-time
Common shares, outstanding (in shares)	`CommonStockSharesOutstanding`	494.49M	shares	Point-in-time
Inventories	`InventoryNet`	$4.89B	USD	Point-in-time
Inventories	`InventoryNet`	$4.89B	USD	Point-in-time
Common shares in treasury (in shares)	`TreasuryStockCommonShares`	37.10M	shares	Point-in-time
Common shares in treasury (in shares)	`TreasuryStockCommonShares`	37.10M	shares	Point-in-time
Inventories	`InventoryNet`	$5.09B	USD	Point-in-time
Inventories	`InventoryNet`	$5.09B	USD	Point-in-time
Common shares in treasury (in shares)	`TreasuryStockCommonShares`	36.56M	shares	Point-in-time
Common shares in treasury (in shares)	`TreasuryStockCommonShares`	36.56M	shares	Point-in-time
Other current assets	`OtherAssetsCurrent`	$183.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$183.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$223.00M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$223.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$6.91B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$6.91B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$6.96B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$6.96B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$9.94B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$9.94B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$9.80B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$9.80B	USD	Point-in-time
Goodwill	`Goodwill`	$1.77B	USD	Point-in-time
Goodwill	`Goodwill`	$1.77B	USD	Point-in-time
Goodwill	`Goodwill`	$1.77B	USD	Point-in-time
Goodwill	`Goodwill`	$1.77B	USD	Point-in-time
Intangible assets	`IntangibleAssetsNetExcludingGoodwill`	$1.15B	USD	Point-in-time
Intangible assets	`IntangibleAssetsNetExcludingGoodwill`	$1.15B	USD	Point-in-time
Intangible assets	`IntangibleAssetsNetExcludingGoodwill`	$1.17B	USD	Point-in-time
Intangible assets	`IntangibleAssetsNetExcludingGoodwill`	$1.17B	USD	Point-in-time
Pension and OPEB assets	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$427.00M	USD	Point-in-time
Pension and OPEB assets	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$427.00M	USD	Point-in-time
Pension and OPEB assets	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$443.00M	USD	Point-in-time
Pension and OPEB assets	`DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent`	$443.00M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$733.00M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$733.00M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$715.00M	USD	Point-in-time
Other non-current assets	`OtherAssetsNoncurrent`	$715.00M	USD	Point-in-time
TOTAL ASSETS	`Assets`	$20.95B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$20.95B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$20.84B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$20.84B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$2.02B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$2.02B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$2.01B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$2.01B	USD	Point-in-time
Accrued employment costs	`EmployeeRelatedLiabilitiesCurrent`	$447.00M	USD	Point-in-time
Accrued employment costs	`EmployeeRelatedLiabilitiesCurrent`	$447.00M	USD	Point-in-time
Accrued employment costs	`EmployeeRelatedLiabilitiesCurrent`	$443.00M	USD	Point-in-time
Accrued employment costs	`EmployeeRelatedLiabilitiesCurrent`	$443.00M	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$361.00M	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$361.00M	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$375.00M	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$375.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$492.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$492.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$442.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$442.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.32B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.32B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.27B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.27B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$7.07B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$7.07B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$7.60B	USD	Point-in-time
Long-term debt	`LongTermDebtNoncurrent`	$7.60B	USD	Point-in-time
Pension and OPEB liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$711.00M	USD	Point-in-time
Pension and OPEB liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$711.00M	USD	Point-in-time
Pension and OPEB liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$751.00M	USD	Point-in-time
Pension and OPEB liabilities	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$751.00M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAndOtherLiabilitiesNoncurrent`	$858.00M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAndOtherLiabilitiesNoncurrent`	$858.00M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAndOtherLiabilitiesNoncurrent`	$723.00M	USD	Point-in-time
Deferred income taxes	`DeferredTaxAndOtherLiabilitiesNoncurrent`	$723.00M	USD	Point-in-time
Asset retirement and environmental obligations	`AssetRetirementAndEnvironmentalObligations`	$601.00M	USD	Point-in-time
Asset retirement and environmental obligations	`AssetRetirementAndEnvironmentalObligations`	$601.00M	USD	Point-in-time
Asset retirement and environmental obligations	`AssetRetirementAndEnvironmentalObligations`	$609.00M	USD	Point-in-time
Asset retirement and environmental obligations	`AssetRetirementAndEnvironmentalObligations`	$609.00M	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$1.44B	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$1.44B	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$1.45B	USD	Point-in-time
Other non-current liabilities	`OtherLiabilitiesNoncurrent`	$1.45B	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$14.35B	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$14.35B	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$14.05B	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$14.05B	USD	Point-in-time
Commitments and contingencies (See Note 18)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (See Note 18)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (See Note 18)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (See Note 18)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common shares - par value $0.125 per share	`CommonStockValueOutstanding`	$66.00M	USD	Point-in-time
Common shares - par value $0.125 per share	`CommonStockValueOutstanding`	$66.00M	USD	Point-in-time
Common shares - par value $0.125 per share	`CommonStockValueOutstanding`	$66.00M	USD	Point-in-time
Common shares - par value $0.125 per share	`CommonStockValueOutstanding`	$66.00M	USD	Point-in-time
Capital in excess of par value of shares	`AdditionalPaidInCapital`	$4.76B	USD	Point-in-time
Capital in excess of par value of shares	`AdditionalPaidInCapital`	$4.76B	USD	Point-in-time
Capital in excess of par value of shares	`AdditionalPaidInCapital`	$4.76B	USD	Point-in-time
Capital in excess of par value of shares	`AdditionalPaidInCapital`	$4.76B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$484.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$484.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$979.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$979.00M	USD	Point-in-time
Cost of 36,560,735 common shares in treasury (2024 - 37,102,625 shares)	`TreasuryStockCommonValue`	$676.00M	USD	Point-in-time
Cost of 36,560,735 common shares in treasury (2024 - 37,102,625 shares)	`TreasuryStockCommonValue`	$676.00M	USD	Point-in-time
Cost of 36,560,735 common shares in treasury (2024 - 37,102,625 shares)	`TreasuryStockCommonValue`	$664.00M	USD	Point-in-time
Cost of 36,560,735 common shares in treasury (2024 - 37,102,625 shares)	`TreasuryStockCommonValue`	$664.00M	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.61B	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.61B	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.54B	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.54B	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.65B	USD	Point-in-time
Accumulated other comprehensive income	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$1.65B	USD	Point-in-time
Total Cliffs shareholders' equity	`StockholdersEquity`	$6.25B	USD	Point-in-time
Total Cliffs shareholders' equity	`StockholdersEquity`	$6.25B	USD	Point-in-time
Total Cliffs shareholders' equity	`StockholdersEquity`	$6.66B	USD	Point-in-time
Total Cliffs shareholders' equity	`StockholdersEquity`	$6.66B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$233.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$233.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$230.00M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$230.00M	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.12B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.12B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.48B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.48B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.90B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.90B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.44B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.44B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$20.84B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$20.84B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$20.95B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$20.95B	USD	Point-in-time

Income Statement 80 line items

Line Item	Tag	Value	Unit	Period
Revenues	`Revenues`	$4.63B	USD	1 Quarter
Revenues	`Revenues`	$4.63B	USD	1 Quarter
Revenues	`Revenues`	$5.20B	USD	1 Quarter
Revenues	`Revenues`	$5.20B	USD	1 Quarter
Cost of goods sold	`CostOfGoodsAndServicesSold`	$5.02B	USD	1 Quarter
Cost of goods sold	`CostOfGoodsAndServicesSold`	$5.02B	USD	1 Quarter
Cost of goods sold	`CostOfGoodsAndServicesSold`	$4.91B	USD	1 Quarter
Cost of goods sold	`CostOfGoodsAndServicesSold`	$4.91B	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$132.00M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$132.00M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$133.00M	USD	1 Quarter
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$133.00M	USD	1 Quarter
Restructuring and other charges	`RestructuringCharges`	$3.00M	USD	1 Quarter
Restructuring and other charges	`RestructuringCharges`	$3.00M	USD	1 Quarter
Restructuring and other charges	`RestructuringCharges`	$104.00M	USD	1 Quarter
Restructuring and other charges	`RestructuringCharges`	$104.00M	USD	1 Quarter
Asset impairment	`AssetImpairmentCharges`	$64.00M	USD	1 Quarter
Asset impairment	`AssetImpairmentCharges`	$64.00M	USD	1 Quarter
Asset impairment	`AssetImpairmentCharges`	-	USD	1 Quarter
Asset impairment	`AssetImpairmentCharges`	-	USD	1 Quarter
Miscellaneous net	`OtherOperatingIncomeExpenseNet`	$-23.00M	USD	1 Quarter
Miscellaneous net	`OtherOperatingIncomeExpenseNet`	$-23.00M	USD	1 Quarter
Miscellaneous net	`OtherOperatingIncomeExpenseNet`	$-11.00M	USD	1 Quarter
Miscellaneous net	`OtherOperatingIncomeExpenseNet`	$-11.00M	USD	1 Quarter
Total operating costs	`CostsAndExpenses`	$5.24B	USD	1 Quarter
Total operating costs	`CostsAndExpenses`	$5.24B	USD	1 Quarter
Total operating costs	`CostsAndExpenses`	$5.17B	USD	1 Quarter
Total operating costs	`CostsAndExpenses`	$5.17B	USD	1 Quarter
Operating loss	`OperatingIncomeLoss`	$-538.00M	USD	1 Quarter
Operating loss	`OperatingIncomeLoss`	$-538.00M	USD	1 Quarter
Operating loss	`OperatingIncomeLoss`	$-38.00M	USD	1 Quarter
Operating loss	`OperatingIncomeLoss`	$-38.00M	USD	1 Quarter
Interest expense, net	`InterestIncomeExpenseNonoperatingNet`	$-64.00M	USD	1 Quarter
Interest expense, net	`InterestIncomeExpenseNonoperatingNet`	$-64.00M	USD	1 Quarter
Interest expense, net	`InterestIncomeExpenseNonoperatingNet`	$-140.00M	USD	1 Quarter
Interest expense, net	`InterestIncomeExpenseNonoperatingNet`	$-140.00M	USD	1 Quarter
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-21.00M	USD	1 Quarter
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$-21.00M	USD	1 Quarter
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Loss on extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Net periodic benefit credits other than service cost component	`NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent`	$-57.00M	USD	1 Quarter
Net periodic benefit credits other than service cost component	`NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent`	$-57.00M	USD	1 Quarter
Net periodic benefit credits other than service cost component	`NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent`	$-60.00M	USD	1 Quarter
Net periodic benefit credits other than service cost component	`NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent`	$-60.00M	USD	1 Quarter
Other non-operating income (expense)	`OtherNonoperatingIncomeExpense`	$2.00M	USD	1 Quarter
Other non-operating income (expense)	`OtherNonoperatingIncomeExpense`	$2.00M	USD	1 Quarter
Other non-operating income (expense)	`OtherNonoperatingIncomeExpense`	$-9.00M	USD	1 Quarter
Other non-operating income (expense)	`OtherNonoperatingIncomeExpense`	$-9.00M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-23.00M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-23.00M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-92.00M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-92.00M	USD	1 Quarter
Loss before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-630.00M	USD	1 Quarter
Loss before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-630.00M	USD	1 Quarter
Loss before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-61.00M	USD	1 Quarter
Loss before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-61.00M	USD	1 Quarter
Income tax benefit	`IncomeTaxExpenseBenefit`	$-147.00M	USD	1 Quarter
Income tax benefit	`IncomeTaxExpenseBenefit`	$-147.00M	USD	1 Quarter
Income tax benefit	`IncomeTaxExpenseBenefit`	$-8.00M	USD	1 Quarter
Income tax benefit	`IncomeTaxExpenseBenefit`	$-8.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-483.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-483.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-53.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-53.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$14.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$14.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Net loss attributable to Cliffs shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-495.00M	USD	1 Quarter
Net loss attributable to Cliffs shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-495.00M	USD	1 Quarter
Net loss attributable to Cliffs shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-67.00M	USD	1 Quarter
Net loss attributable to Cliffs shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-67.00M	USD	1 Quarter
Income (Loss) from Continuing Operations, Per Basic Share	`IncomeLossFromContinuingOperationsPerBasicShare`	$-1.00	USD	1 Quarter
Income (Loss) from Continuing Operations, Per Basic Share	`IncomeLossFromContinuingOperationsPerBasicShare`	$-1.00	USD	1 Quarter
Income (Loss) from Continuing Operations, Per Basic Share	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.14	USD	1 Quarter
Income (Loss) from Continuing Operations, Per Basic Share	`IncomeLossFromContinuingOperationsPerBasicShare`	$-0.14	USD	1 Quarter
Income (Loss) from Continuing Operations, Per Diluted Share	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.14	USD	1 Quarter
Income (Loss) from Continuing Operations, Per Diluted Share	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-0.14	USD	1 Quarter
Income (Loss) from Continuing Operations, Per Diluted Share	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-1.00	USD	1 Quarter
Income (Loss) from Continuing Operations, Per Diluted Share	`IncomeLossFromContinuingOperationsPerDilutedShare`	$-1.00	USD	1 Quarter

Cash Flow Statement 122 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-483.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-483.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-53.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-53.00M	USD	1 Quarter
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$230.00M	USD	1 Quarter
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$230.00M	USD	1 Quarter
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$282.00M	USD	1 Quarter
Depreciation, depletion and amortization	`DepreciationDepletionAndAmortization`	$282.00M	USD	1 Quarter
Pension and OPEB credits	`PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash`	$-51.00M	USD	1 Quarter
Pension and OPEB credits	`PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash`	$-51.00M	USD	1 Quarter
Pension and OPEB credits	`PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash`	$-48.00M	USD	1 Quarter
Pension and OPEB credits	`PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash`	$-48.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-8.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-8.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-151.00M	USD	1 Quarter
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-151.00M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-241.00M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-241.00M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-65.00M	USD	1 Quarter
Other	`OtherNoncashIncomeExpense`	$-65.00M	USD	1 Quarter
Accounts receivable, net	`IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets`	$223.00M	USD	1 Quarter
Accounts receivable, net	`IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets`	$223.00M	USD	1 Quarter
Accounts receivable, net	`IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets`	$27.00M	USD	1 Quarter
Accounts receivable, net	`IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets`	$27.00M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$8.00M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$8.00M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$-182.00M	USD	1 Quarter
Inventories	`IncreaseDecreaseInInventories`	$-182.00M	USD	1 Quarter
Income taxes	`IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable`	$-1.00M	USD	1 Quarter
Income taxes	`IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable`	$-1.00M	USD	1 Quarter
Income taxes	`IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable`	$7.00M	USD	1 Quarter
Income taxes	`IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable`	$7.00M	USD	1 Quarter
Pension and OPEB payments and contributions	`PensionAndOtherPostretirementBenefitContributions`	$32.00M	USD	1 Quarter
Pension and OPEB payments and contributions	`PensionAndOtherPostretirementBenefitContributions`	$32.00M	USD	1 Quarter
Pension and OPEB payments and contributions	`PensionAndOtherPostretirementBenefitContributions`	$43.00M	USD	1 Quarter
Pension and OPEB payments and contributions	`PensionAndOtherPostretirementBenefitContributions`	$43.00M	USD	1 Quarter
Payables, accrued employment and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-170.00M	USD	1 Quarter
Payables, accrued employment and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-170.00M	USD	1 Quarter
Payables, accrued employment and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$57.00M	USD	1 Quarter
Payables, accrued employment and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$57.00M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-21.00M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-21.00M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-4.00M	USD	1 Quarter
Other, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-4.00M	USD	1 Quarter
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$142.00M	USD	1 Quarter
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$142.00M	USD	1 Quarter
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-351.00M	USD	1 Quarter
Net cash provided (used) by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$-351.00M	USD	1 Quarter
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$182.00M	USD	1 Quarter
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$182.00M	USD	1 Quarter
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$152.00M	USD	1 Quarter
Purchase of property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$152.00M	USD	1 Quarter
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-7.00M	USD	1 Quarter
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-7.00M	USD	1 Quarter
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-3.00M	USD	1 Quarter
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-3.00M	USD	1 Quarter
Net cash used by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-179.00M	USD	1 Quarter
Net cash used by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-179.00M	USD	1 Quarter
Net cash used by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-145.00M	USD	1 Quarter
Net cash used by investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-145.00M	USD	1 Quarter
Proceeds from issuance of senior notes	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$825.00M	USD	1 Quarter
Proceeds from issuance of senior notes	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$825.00M	USD	1 Quarter
Proceeds from issuance of senior notes	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$850.00M	USD	1 Quarter
Proceeds from issuance of senior notes	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$850.00M	USD	1 Quarter
Repayments of senior notes	`RepaymentsOfLongTermDebt`	-	USD	1 Quarter
Repayments of senior notes	`RepaymentsOfLongTermDebt`	-	USD	1 Quarter
Repayments of senior notes	`RepaymentsOfLongTermDebt`	$652.00M	USD	1 Quarter
Repayments of senior notes	`RepaymentsOfLongTermDebt`	$652.00M	USD	1 Quarter
Repurchase of common shares	`PaymentsForRepurchaseOfCommonStock`	-	USD	1 Quarter
Repurchase of common shares	`PaymentsForRepurchaseOfCommonStock`	-	USD	1 Quarter
Repurchase of common shares	`PaymentsForRepurchaseOfCommonStock`	$608.00M	USD	1 Quarter
Repurchase of common shares	`PaymentsForRepurchaseOfCommonStock`	$608.00M	USD	1 Quarter
Borrowings (repayments) under credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$-305.00M	USD	1 Quarter
Borrowings (repayments) under credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$-305.00M	USD	1 Quarter
Borrowings (repayments) under credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$342.00M	USD	1 Quarter
Borrowings (repayments) under credit facilities, net	`ProceedsFromRepaymentsOfLinesOfCredit`	$342.00M	USD	1 Quarter
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$13.00M	USD	1 Quarter
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$13.00M	USD	1 Quarter
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$13.00M	USD	1 Quarter
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$13.00M	USD	1 Quarter
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-25.00M	USD	1 Quarter
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-25.00M	USD	1 Quarter
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-33.00M	USD	1 Quarter
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-33.00M	USD	1 Quarter
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-131.00M	USD	1 Quarter
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-131.00M	USD	1 Quarter
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$499.00M	USD	1 Quarter
Net cash provided (used) by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$499.00M	USD	1 Quarter
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-168.00M	USD	1 Quarter
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-168.00M	USD	1 Quarter
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$3.00M	USD	1 Quarter
Net increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$3.00M	USD	1 Quarter
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$60.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$60.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$198.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$198.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$30.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$30.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$63.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$63.00M	USD	Point-in-time
Effect of exchange rate changes on cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	-	USD	1 Quarter
Effect of exchange rate changes on cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	-	USD	1 Quarter
Effect of exchange rate changes on cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	-	USD	1 Quarter
Effect of exchange rate changes on cash	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	-	USD	1 Quarter
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$60.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$60.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$198.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$198.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$30.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$30.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$63.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$63.00M	USD	Point-in-time
Restricted cash	`RestrictedCash`	$6.00M	USD	Point-in-time
Restricted cash	`RestrictedCash`	$6.00M	USD	Point-in-time
Restricted cash	`RestrictedCash`	-	USD	Point-in-time
Restricted cash	`RestrictedCash`	-	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$30.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$30.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$54.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$54.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$57.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$57.00M	USD	Point-in-time

Stockholders Equity 42 line items

Line Item	Tag	Value	Unit	Period
Balance, beginning of period (in shares)	`CommonStockSharesOutstanding`	493.95M	shares	Point-in-time
Balance, beginning of period (in shares)	`CommonStockSharesOutstanding`	493.95M	shares	Point-in-time
Balance, beginning of period (in shares)	`CommonStockSharesOutstanding`	494.49M	shares	Point-in-time
Balance, beginning of period (in shares)	`CommonStockSharesOutstanding`	494.49M	shares	Point-in-time
Balance, beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.12B	USD	Point-in-time
Balance, beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.12B	USD	Point-in-time
Balance, beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.48B	USD	Point-in-time
Balance, beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.48B	USD	Point-in-time
Balance, beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.90B	USD	Point-in-time
Balance, beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.90B	USD	Point-in-time
Balance, beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.44B	USD	Point-in-time
Balance, beginning of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.44B	USD	Point-in-time
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-408.00M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-408.00M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-62.00M	USD	1 Quarter
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-62.00M	USD	1 Quarter
Common stock repurchases, net of excise tax	`StockRepurchasedDuringPeriodValue`	$615.00M	USD	1 Quarter
Common stock repurchases, net of excise tax	`StockRepurchasedDuringPeriodValue`	$615.00M	USD	1 Quarter
Stock and other incentive plans	`StockIssuedDuringPeriodValueShareBasedCompensation`	$5.00M	USD	1 Quarter
Stock and other incentive plans	`StockIssuedDuringPeriodValueShareBasedCompensation`	$5.00M	USD	1 Quarter
Stock and other incentive plans	`StockIssuedDuringPeriodValueShareBasedCompensation`	$10.00M	USD	1 Quarter
Stock and other incentive plans	`StockIssuedDuringPeriodValueShareBasedCompensation`	$10.00M	USD	1 Quarter
Net distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$8.00M	USD	1 Quarter
Net distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$8.00M	USD	1 Quarter
Net distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$15.00M	USD	1 Quarter
Net distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$15.00M	USD	1 Quarter
Balance, end of period (in shares)	`CommonStockSharesOutstanding`	493.95M	shares	Point-in-time
Balance, end of period (in shares)	`CommonStockSharesOutstanding`	493.95M	shares	Point-in-time
Balance, end of period (in shares)	`CommonStockSharesOutstanding`	494.49M	shares	Point-in-time
Balance, end of period (in shares)	`CommonStockSharesOutstanding`	494.49M	shares	Point-in-time
Balance, end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.12B	USD	Point-in-time
Balance, end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.12B	USD	Point-in-time
Balance, end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.48B	USD	Point-in-time
Balance, end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.48B	USD	Point-in-time
Balance, end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.90B	USD	Point-in-time
Balance, end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.90B	USD	Point-in-time
Balance, end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.44B	USD	Point-in-time
Balance, end of period	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.44B	USD	Point-in-time
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-495.00M	USD	1 Quarter
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-495.00M	USD	1 Quarter
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-67.00M	USD	1 Quarter
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-67.00M	USD	1 Quarter

Comprehensive Income 32 line items

Line Item	Tag	Value	Unit	Period
Net loss	`ProfitLoss`	$-483.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-483.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-53.00M	USD	1 Quarter
Net loss	`ProfitLoss`	$-53.00M	USD	1 Quarter
Changes in pension and OPEB, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$28.00M	USD	1 Quarter
Changes in pension and OPEB, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$28.00M	USD	1 Quarter
Changes in pension and OPEB, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$27.00M	USD	1 Quarter
Changes in pension and OPEB, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$27.00M	USD	1 Quarter
Changes in derivative financial instruments, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-20.00M	USD	1 Quarter
Changes in derivative financial instruments, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-20.00M	USD	1 Quarter
Changes in derivative financial instruments, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-101.00M	USD	1 Quarter
Changes in derivative financial instruments, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-101.00M	USD	1 Quarter
Changes in foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.00M	USD	1 Quarter
Changes in foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.00M	USD	1 Quarter
Changes in foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.00M	USD	1 Quarter
Changes in foreign currency translation	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$1.00M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$75.00M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$75.00M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-9.00M	USD	1 Quarter
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-9.00M	USD	1 Quarter
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-408.00M	USD	1 Quarter
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-408.00M	USD	1 Quarter
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-62.00M	USD	1 Quarter
Comprehensive loss	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$-62.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$14.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$14.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$12.00M	USD	1 Quarter
Comprehensive loss attributable to Cliffs shareholders	`ComprehensiveIncomeNetOfTax`	$-76.00M	USD	1 Quarter
Comprehensive loss attributable to Cliffs shareholders	`ComprehensiveIncomeNetOfTax`	$-76.00M	USD	1 Quarter
Comprehensive loss attributable to Cliffs shareholders	`ComprehensiveIncomeNetOfTax`	$-420.00M	USD	1 Quarter
Comprehensive loss attributable to Cliffs shareholders	`ComprehensiveIncomeNetOfTax`	$-420.00M	USD	1 Quarter

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.