2020 Q1 Form 10-Q Financial Statement
#000076406520000189 Filed on May 11, 2020
Income Statement
Concept | 2020 Q1 | 2019 Q1 | 2018 Q4 |
---|---|---|---|
Revenue | $359.0M | $157.0M | $696.3M |
YoY Change | 128.66% | -12.78% | 36.05% |
Cost Of Revenue | $356.0M | $126.1M | $493.3M |
YoY Change | 182.32% | 6.41% | 25.46% |
Gross Profit | $3.000M | $30.90M | $202.0M |
YoY Change | -90.29% | -49.76% | 73.99% |
Gross Profit Margin | 0.84% | 19.68% | 29.01% |
Selling, General & Admin | $28.00M | $27.30M | $35.40M |
YoY Change | 2.56% | 8.76% | 29.2% |
% of Gross Profit | 933.33% | 88.35% | 17.52% |
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $35.00M | $19.90M | $20.40M |
YoY Change | 75.88% | -16.74% | -4.67% |
% of Gross Profit | 1166.67% | 64.4% | 10.1% |
Operating Expenses | $28.00M | $31.70M | $39.60M |
YoY Change | -11.67% | 1.6% | 382.93% |
Operating Profit | -$79.00M | -$800.0K | $162.4M |
YoY Change | 9775.0% | -102.64% | 50.51% |
Interest Expense | -$31.00M | -$25.10M | -$26.00M |
YoY Change | 23.51% | -23.48% | 3.17% |
% of Operating Profit | -16.01% | ||
Other Income/Expense, Net | -$22.00M | -$25.00M | $4.100M |
YoY Change | -12.0% | -10.71% | 57.69% |
Pretax Income | -$101.0M | -$25.80M | $134.5M |
YoY Change | 291.47% | -1221.74% | 53.19% |
Income Tax | -$51.00M | -$3.700M | -$489.6M |
% Of Pretax Income | -364.01% | ||
Net Earnings | -$52.00M | -$22.10M | $609.5M |
YoY Change | 135.29% | -73.78% | 96.68% |
Net Earnings / Revenue | -14.48% | -14.08% | 87.53% |
Basic Earnings Per Share | -$0.18 | -$0.08 | $2.06 |
Diluted Earnings Per Share | -$0.18 | -$0.08 | $1.98 |
COMMON SHARES | |||
Basic Shares Outstanding | 298.0M shares | 289.5M shares | 298.0M shares |
Diluted Shares Outstanding | 298.0M shares | 289.5M shares |
Balance Sheet
Concept | 2020 Q1 | 2019 Q1 | 2018 Q4 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $187.0M | $430.0M | $823.0M |
YoY Change | -56.51% | -45.36% | -15.85% |
Cash & Equivalents | $186.9M | $430.2M | $823.2M |
Short-Term Investments | |||
Other Short-Term Assets | $107.4M | $41.00M | $39.80M |
YoY Change | 161.95% | 269.37% | 258.56% |
Inventory | $2.149B | $312.7M | $181.1M |
Prepaid Expenses | |||
Receivables | $560.8M | $20.10M | $226.7M |
Other Receivables | $62.00M | $117.0M | $117.0M |
Total Short-Term Assets | $3.066B | $1.126B | $1.480B |
YoY Change | 172.26% | -28.8% | -4.21% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $4.550B | $1.410B | $1.286B |
YoY Change | 222.61% | 36.42% | 24.4% |
Goodwill | $143.3M | ||
YoY Change | |||
Intangibles | $210.0M | ||
YoY Change | |||
Long-Term Investments | |||
YoY Change | |||
Other Assets | $215.1M | $113.8M | $177.9M |
YoY Change | 89.02% | 12.01% | 75.1% |
Total Long-Term Assets | $5.847B | $2.180B | $2.050B |
YoY Change | 168.16% | 54.76% | 45.51% |
TOTAL ASSETS | |||
Total Short-Term Assets | $3.066B | $1.126B | $1.480B |
Total Long-Term Assets | $5.847B | $2.180B | $2.050B |
Total Assets | $8.912B | $3.306B | $3.530B |
YoY Change | 169.56% | 10.57% | 19.51% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $825.3M | $171.7M | $186.8M |
YoY Change | 380.66% | 70.17% | 87.74% |
Accrued Expenses | $299.8M | $65.00M | $158.9M |
YoY Change | 361.23% | -17.83% | 100.88% |
Deferred Revenue | $18.10M | $21.00M | |
YoY Change | -9.5% | -11.76% | |
Short-Term Debt | $0.00 | $0.00 | $0.00 |
YoY Change | |||
Long-Term Debt Due | $11.00M | ||
YoY Change | |||
Total Short-Term Liabilities | $1.371B | $394.0M | $468.2M |
YoY Change | 247.92% | -13.41% | 3.54% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $4.357B | $2.087B | $2.093B |
YoY Change | 108.77% | -9.43% | -9.17% |
Other Long-Term Liabilities | $263.5M | $145.0M | $123.6M |
YoY Change | 81.72% | -11.31% | -24.4% |
Total Long-Term Liabilities | $4.621B | $2.232B | $2.217B |
YoY Change | 107.02% | -9.55% | -10.18% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $1.371B | $394.0M | $468.2M |
Total Long-Term Liabilities | $4.621B | $2.232B | $2.217B |
Total Liabilities | $7.681B | $3.045B | $3.105B |
YoY Change | 152.29% | -10.46% | -8.6% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | -$2.919B | -$3.097B | -$3.060B |
YoY Change | -5.76% | -27.26% | -27.26% |
Common Stock | |||
YoY Change | |||
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | $365.0M | $263.9M | $186.1M |
YoY Change | 38.31% | 73.85% | 9.73% |
Treasury Stock Shares | 30.06M shares | 3.879M shares | 9.275M shares |
Shareholders Equity | $903.2M | $261.7M | $424.2M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $8.912B | $3.306B | $3.530B |
YoY Change | 169.56% | 10.57% | 19.51% |
Cashflow Statement
Concept | 2020 Q1 | 2019 Q1 | 2018 Q4 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | -$52.00M | -$22.10M | $609.5M |
YoY Change | 135.29% | -73.78% | 96.68% |
Depreciation, Depletion And Amortization | $35.00M | $19.90M | $20.40M |
YoY Change | 75.88% | -16.74% | -4.67% |
Cash From Operating Activities | -$164.0M | -$111.2M | $293.0M |
YoY Change | 47.48% | -22.18% | 115.92% |
INVESTING ACTIVITIES | |||
Capital Expenditures | $138.0M | $134.1M | -$97.20M |
YoY Change | 2.91% | 127.29% | 34.63% |
Acquisitions | $869.0M | $0.00 | |
YoY Change | |||
Other Investing Activities | $0.00 | -$8.500M | -$2.200M |
YoY Change | -100.0% | -466.67% | |
Cash From Investing Activities | -$1.007B | -$125.6M | -$99.40M |
YoY Change | 701.75% | 75.91% | 38.83% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | $16.90M | $14.80M | |
YoY Change | 14.19% | ||
Common Stock Issuance & Retirement, Net | $0.00 | $124.3M | |
YoY Change | -100.0% | ||
Debt Paid & Issued, Net | $430.0M | $10.30M | |
YoY Change | 4074.76% | ||
Cash From Financing Activities | $1.005B | -$157.8M | -267.5M |
YoY Change | -736.88% | 2154.29% | -138.91% |
NET CHANGE | |||
Cash From Operating Activities | -$164.0M | -$111.2M | 293.0M |
Cash From Investing Activities | -$1.007B | -$125.6M | -99.40M |
Cash From Financing Activities | $1.005B | -$157.8M | -267.5M |
Net Change In Cash | -$166.0M | -$394.6M | -73.90M |
YoY Change | -57.93% | 78.31% | -109.83% |
FREE CASH FLOW | |||
Cash From Operating Activities | -$164.0M | -$111.2M | $293.0M |
Capital Expenditures | $138.0M | $134.1M | -$97.20M |
Free Cash Flow | -$302.0M | -$245.3M | $390.2M |
YoY Change | 23.11% | 21.5% | 87.69% |
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CY2019Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-22100000 | USD |
CY2020Q1 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
437900000 | USD |
CY2019Q1 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
157800000 | USD |
CY2020Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-78800000 | USD |
CY2019Q1 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-800000 | USD |
CY2020Q1 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
-31000000.0 | USD |
CY2019Q1 | us-gaap |
Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
|
-25100000 | USD |
CY2020Q1 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
9200000 | USD |
CY2019Q1 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
100000 | USD |
CY2020Q1 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-21800000 | USD |
CY2019Q1 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-25000000.0 | USD |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
-100600000 | USD |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
|
-25800000 | USD |
CY2020Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-51400000 | USD |
CY2020Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
3500000 | USD |
CY2019Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
CY2020Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-52100000 | USD |
CY2019Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-22100000 | USD |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.18 | |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.08 | |
CY2020Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
0 | |
CY2019Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
0 | |
CY2020Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.18 | |
CY2019Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.08 | |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.18 | |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.08 | |
CY2020Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
0 | |
CY2019Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
0 | |
CY2020Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.18 | |
CY2019Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.08 | |
CY2020Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
297515000 | shares |
CY2019Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
289525000 | shares |
CY2020Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
297515000 | shares |
CY2019Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
289525000 | shares |
CY2020Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-48600000 | USD |
CY2020Q1 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-50400000 | USD |
CY2019Q1 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-5700000 | USD |
CY2019Q1 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-13700000 | USD |
CY2020Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-48600000 | USD |
CY2019Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-22100000 | USD |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-5600000 | USD |
CY2019Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-22100000 | USD |
CY2020Q1 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
34400000 | USD |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
|
-900000 | USD |
CY2019Q1 | us-gaap |
Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax
OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
|
0 | USD |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax
|
-3000000.0 | USD |
CY2019Q1 | us-gaap |
Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax
|
2700000 | USD |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
1700000 | USD |
CY2019Q1 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
8400000 | USD |
CY2020Q1 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-46900000 | USD |
CY2019Q1 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-13700000 | USD |
CY2020Q1 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
3500000 | USD |
CY2019Q1 | us-gaap |
Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
|
0 | USD |
CY2019Q1 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
19900000 | USD |
CY2020Q1 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-47500000 | USD |
CY2019Q1 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-4100000 | USD |
CY2020Q1 | us-gaap |
Unrealized Gain Loss On Derivatives And Commodity Contracts
UnrealizedGainLossOnDerivativesAndCommodityContracts
|
-32000000.0 | USD |
CY2019Q1 | us-gaap |
Unrealized Gain Loss On Derivatives And Commodity Contracts
UnrealizedGainLossOnDerivativesAndCommodityContracts
|
5700000 | USD |
CY2020Q1 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
31600000 | USD |
CY2019Q1 | us-gaap |
Other Noncash Income Expense
OtherNoncashIncomeExpense
|
-13900000 | USD |
CY2020Q1 | us-gaap |
Increase Decrease In Accounts Receivable And Other Operating Assets
IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets
|
-254100000 | USD |
CY2019Q1 | us-gaap |
Increase Decrease In Accounts Receivable And Other Operating Assets
IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets
|
-204000000.0 | USD |
CY2020Q1 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
244100000 | USD |
CY2019Q1 | us-gaap |
Increase Decrease In Inventories
IncreaseDecreaseInInventories
|
228900000 | USD |
CY2020Q1 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
-109200000 | USD |
CY2019Q1 | us-gaap |
Increase Decrease In Accounts Payable And Accrued Liabilities
IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
|
-88200000 | USD |
CY2020Q1 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-160500000 | USD |
CY2019Q1 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-111200000 | USD |
CY2020Q1 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
138100000 | USD |
CY2019Q1 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
134100000 | USD |
CY2020Q1 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
869300000 | USD |
CY2019Q1 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
0 | USD |
CY2020Q1 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
100000 | USD |
CY2019Q1 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-8500000 | USD |
CY2020Q1 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-1007500000 | USD |
CY2019Q1 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-125600000 | USD |
CY2020Q1 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
CY2019Q1 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
124300000 | USD |
CY2020Q1 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
800000000.0 | USD |
CY2019Q1 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
0 | USD |
CY2019Q1 | clf |
Increase Decreasein Cashand Cash Equivalents Including Cash Classified Within Other Current Assets Relatedto Discontinued Operations
IncreaseDecreaseinCashandCashEquivalentsIncludingCashClassifiedWithinOtherCurrentAssetsRelatedtoDiscontinuedOperations
|
-394600000 | USD |
CY2020Q1 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-19900000 | USD |
CY2020Q1 | us-gaap |
Net Cash Provided By Used In Discontinued Operations
NetCashProvidedByUsedInDiscontinuedOperations
|
2800000 | USD |
CY2019Q1 | us-gaap |
Net Cash Provided By Used In Discontinued Operations
NetCashProvidedByUsedInDiscontinuedOperations
|
-1600000 | USD |
CY2020Q1 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
16900000 | USD |
CY2019Q1 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-8400000 | USD |
CY2020Q1 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
1005100000 | USD |
CY2019Q1 | us-gaap |
Payments Of Dividends
PaymentsOfDividends
|
14800000 | USD |
CY2020Q1 | us-gaap |
Proceeds From Issuance Of Senior Long Term Debt
ProceedsFromIssuanceOfSeniorLongTermDebt
|
716200000 | USD |
CY2019Q1 | us-gaap |
Proceeds From Issuance Of Senior Long Term Debt
ProceedsFromIssuanceOfSeniorLongTermDebt
|
0 | USD |
CY2020Q1 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
44400000 | USD |
CY2019Q1 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
0 | USD |
CY2020Q1 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
429900000 | USD |
CY2019Q1 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
10300000 | USD |
CY2019Q1 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-157800000 | USD |
CY2020Q1 | clf |
Increase Decreasein Cashand Cash Equivalents Including Cash Classified Within Other Current Assets Relatedto Discontinued Operations
IncreaseDecreaseinCashandCashEquivalentsIncludingCashClassifiedWithinOtherCurrentAssetsRelatedtoDiscontinuedOperations
|
-162900000 | USD |
CY2020Q1 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-165700000 | USD |
CY2019Q1 | us-gaap |
Cash And Cash Equivalents Period Increase Decrease
CashAndCashEquivalentsPeriodIncreaseDecrease
|
-393000000.0 | USD |
CY2019Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
352600000 | USD |
CY2018Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
823200000 | USD |
CY2020Q1 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
186900000 | USD |
CY2019Q1 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
430200000 | USD |
CY2019Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
357900000 | USD |
CY2020Q1 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-46900000 | USD |
CY2020Q1 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
2100000 | USD |
CY2020Q1 | us-gaap |
Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
|
947400000 | USD |
CY2020Q1 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
24000000.0 | USD |
CY2020Q1 | us-gaap |
Minority Interest Decrease From Distributions To Noncontrolling Interest Holders
MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
|
5500000 | USD |
CY2020Q1 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
1231000000.0 | USD |
CY2018Q4 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
424200000 | USD |
CY2019Q1 | us-gaap |
Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest
ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
|
-13700000 | USD |
CY2019Q1 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
-10000000.0 | USD |
CY2019Q1 | us-gaap |
Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
|
124300000 | USD |
CY2019Q1 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
14500000 | USD |
CY2019Q1 | us-gaap |
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
|
261700000 | USD |
CY2018Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
0 | USD |
CY2020Q1 | us-gaap |
Allowance For Doubtful Accounts Receivable Period Increase Decrease
AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
|
1200000 | USD |
CY2019Q1 | us-gaap |
Allowance For Doubtful Accounts Receivable Period Increase Decrease
AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
|
0 | USD |
CY2020Q1 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
1200000 | USD |
CY2019Q1 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
0 | USD |
CY2020Q1 | us-gaap |
Basis Of Accounting
BasisOfAccounting
|
<div style="line-height:120%;padding-bottom:12px;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;font-weight:bold;">Business, Consolidation and Presentation</span></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">The accompanying </span><span style="font-family:Arial;font-size:10pt;">unaudited condensed consolidated financial statements</span><span style="font-family:Arial;font-size:10pt;"> have been prepared in accordance with SEC rules and regulations and, in the opinion of management, include all adjustments (consisting of normal recurring adjustments) necessary to present fairly the financial position, results of operations, comprehensive income (loss), cash flows and changes in equity for the periods presented. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Management bases its estimates on various assumptions and historical experience, which are believed to be reasonable; however, due to the inherent nature of estimates, actual results may differ significantly due to changed conditions or assumptions. The results of operations for the </span><span style="font-family:Arial;font-size:10pt;">three months ended</span><span style="font-family:Arial;font-size:10pt;"> </span><span style="font-family:Arial;font-size:10pt;">March 31, 2020</span><span style="font-family:Arial;font-size:10pt;"> are not necessarily indicative of results to be expected for the year ending </span><span style="font-family:Arial;font-size:10pt;">December 31, 2020</span><span style="font-family:Arial;font-size:10pt;"> or any other future period. Due to the acquisition of AK Steel, certain balances have become material and are no longer being condensed in our </span><span style="font-family:Arial;font-size:10pt;">Statements of Unaudited Condensed Consolidated Financial Position</span><span style="font-family:Arial;font-size:10pt;">, such as balances for </span><span style="font-family:Arial;font-size:10pt;font-style:italic;">Right-of-use asset, operating lease</span><span style="font-family:Arial;font-size:10pt;"> and </span><span style="font-family:Arial;font-size:10pt;font-style:italic;">Operating lease liability, non-current</span><span style="font-family:Arial;font-size:10pt;">. As a result, certain prior period amounts have been reclassified to conform with the current year presentation. These </span><span style="font-family:Arial;font-size:10pt;">unaudited condensed consolidated financial statements</span><span style="font-family:Arial;font-size:10pt;"> should be read in conjunction with the financial statements and notes included in our Annual Report on Form 10-K for the year ended </span><span style="font-family:Arial;font-size:10pt;">December 31, 2019</span><span style="font-family:Arial;font-size:10pt;">.</span></div> | |
CY2020Q1 | us-gaap |
Deferred Revenue Revenue Recognized1
DeferredRevenueRevenueRecognized1
|
34600000 | USD |
CY2020Q1 | clf |
Assumed Finitelived Intangible Liabilities Weighted Average Useful Life
AssumedFinitelivedIntangibleLiabilitiesWeightedAverageUsefulLife
|
P13Y | |
CY2020Q1 | us-gaap |
Revenues
Revenues
|
359100000 | USD |
CY2019Q1 | us-gaap |
Revenues
Revenues
|
157000000.0 | USD |
CY2020Q1 | us-gaap |
Deferred Revenue Revenue Recognized1
DeferredRevenueRevenueRecognized1
|
34600000 | USD |
CY2020Q1 | us-gaap |
Revenues
Revenues
|
359100000 | USD |
CY2019Q1 | us-gaap |
Revenues
Revenues
|
157000000.0 | USD |
CY2020Q1 | us-gaap |
Deferred Revenue Revenue Recognized1
DeferredRevenueRevenueRecognized1
|
34600000 | USD |
CY2019Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable
AllowanceForDoubtfulAccountsReceivable
|
0 | USD |
CY2020Q1 | clf |
Capital Expenditures Incurredbut Notyet Paid Increase Decrease In Period
CapitalExpendituresIncurredbutNotyetPaidIncreaseDecreaseInPeriod
|
-10300000 | USD |
CY2019Q1 | clf |
Capital Expenditures Incurredbut Notyet Paid Increase Decrease In Period
CapitalExpendituresIncurredbutNotyetPaidIncreaseDecreaseInPeriod
|
-11500000 | USD |
CY2020Q1 | us-gaap |
Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
|
1358900000 | USD |
CY2019Q4 | us-gaap |
Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
|
114100000 | USD |
CY2020Q1 | us-gaap |
Inventory Work In Process Net Of Reserves
InventoryWorkInProcessNetOfReserves
|
88000000.0 | USD |
CY2019Q4 | us-gaap |
Inventory Work In Process Net Of Reserves
InventoryWorkInProcessNetOfReserves
|
68700000 | USD |
CY2020Q1 | us-gaap |
Inventory Raw Materials Net Of Reserves
InventoryRawMaterialsNetOfReserves
|
343000000.0 | USD |
CY2019Q4 | us-gaap |
Inventory Raw Materials Net Of Reserves
InventoryRawMaterialsNetOfReserves
|
9400000 | USD |
CY2020Q1 | us-gaap |
Inventory Finished Goods And Work In Process Net Of Reserves
InventoryFinishedGoodsAndWorkInProcessNetOfReserves
|
1789900000 | USD |
CY2019Q4 | us-gaap |
Inventory Finished Goods And Work In Process Net Of Reserves
InventoryFinishedGoodsAndWorkInProcessNetOfReserves
|
192200000 | USD |
CY2020Q1 | us-gaap |
Inventory Supplies Net Of Reserves
InventorySuppliesNetOfReserves
|
358900000 | USD |
CY2019Q4 | us-gaap |
Inventory Supplies Net Of Reserves
InventorySuppliesNetOfReserves
|
125200000 | USD |
CY2020Q1 | us-gaap |
Inventory Net
InventoryNet
|
2148800000 | USD |
CY2019Q4 | us-gaap |
Inventory Net
InventoryNet
|
317400000 | USD |
CY2020Q1 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
158300000 | USD |
CY2019Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
61700000 | USD |
CY2020Q1 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
47100000 | USD |
CY2019Q4 | us-gaap |
Interest Payable Current
InterestPayableCurrent
|
29000000.0 | USD |
CY2020Q1 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
24900000 | USD |
CY2019Q4 | us-gaap |
Dividends Payable Current
DividendsPayableCurrent
|
17800000 | USD |
CY2020Q1 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
69500000 | USD |
CY2019Q4 | us-gaap |
Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
|
17800000 | USD |
CY2020Q1 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
299800000 | USD |
CY2019Q4 | us-gaap |
Accrued Liabilities Current
AccruedLiabilitiesCurrent
|
126300000 | USD |
CY2020Q1 | clf |
Property Plantand Equipment Additions Including Discontinued Operations
PropertyPlantandEquipmentAdditionsIncludingDiscontinuedOperations
|
157700000 | USD |
CY2019Q1 | clf |
Property Plantand Equipment Additions Including Discontinued Operations
PropertyPlantandEquipmentAdditionsIncludingDiscontinuedOperations
|
129300000 | USD |
CY2020Q1 | us-gaap |
Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
|
29900000 | USD |
CY2020Q1 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
9700000 | USD |
CY2020Q1 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.06 | |
CY2019Q1 | us-gaap |
Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
|
15100000 | USD |
CY2020Q1 | clf |
Government Grant Received
GovernmentGrantReceived
|
0 | USD |
CY2019Q1 | clf |
Government Grant Received
GovernmentGrantReceived
|
8400000 | USD |
CY2020Q1 | us-gaap |
Assets
Assets
|
8912300000 | USD |
CY2019Q4 | us-gaap |
Assets
Assets
|
3503800000 | USD |
CY2019Q1 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
4000000.0 | USD |
CY2020Q1 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
138100000 | USD |
CY2019Q1 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
134100000 | USD |
CY2020Q1 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
100000 | USD |
CY2019Q1 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
100000 | USD |
CY2020Q1 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
60400000 | USD |
CY2019Q1 | us-gaap |
Proceeds From Income Tax Refunds
ProceedsFromIncomeTaxRefunds
|
0 | USD |
CY2020Q1 | us-gaap |
Interest Paid Net
InterestPaidNet
|
29700000 | USD |
CY2019Q1 | us-gaap |
Interest Paid Net
InterestPaidNet
|
39200000 | USD |
CY2020Q1 | us-gaap |
Interest Paid Capitalized
InterestPaidCapitalized
|
9700000 | USD |
CY2020Q1 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
24000000.0 | USD |
CY2019Q1 | us-gaap |
Dividends Common Stock
DividendsCommonStock
|
14500000 | USD |
CY2020Q1 | us-gaap |
Business Combination Consideration Transferred Liabilities Incurred
BusinessCombinationConsiderationTransferredLiabilitiesIncurred
|
913600000 | USD |
CY2020Q1 | us-gaap |
Business Combination Consideration Transferred1
BusinessCombinationConsiderationTransferred1
|
1535500000 | USD |
CY2019Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
1929000000.0 | USD |
CY2020Q1 | us-gaap |
Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
|
84200000 | USD |
CY2020Q1 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
157700000 | USD |
CY2019Q1 | us-gaap |
Property Plant And Equipment Additions
PropertyPlantAndEquipmentAdditions
|
129300000 | USD |
CY2019Q4 | us-gaap |
Finance Lease Right Of Use Asset
FinanceLeaseRightOfUseAsset
|
49000000.0 | USD |
CY2019Q1 | us-gaap |
Interest Costs Capitalized
InterestCostsCapitalized
|
4000000.0 | USD |
CY2020Q1 | us-gaap |
Depreciation
Depreciation
|
35400000 | USD |
CY2020Q1 | us-gaap |
Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
|
1526400000 | USD |
CY2019Q1 | us-gaap |
Business Acquisitions Pro Forma Revenue
BusinessAcquisitionsProFormaRevenue
|
1787300000 | USD |
CY2020Q1 | us-gaap |
Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
|
-17400000 | USD |
CY2019Q1 | us-gaap |
Business Acquisitions Pro Forma Net Income Loss
BusinessAcquisitionsProFormaNetIncomeLoss
|
-79700000 | USD |
CY2020Q1 | us-gaap |
Number Of Reporting Units
NumberOfReportingUnits
|
2 | unit |
CY2020Q1 | us-gaap |
Revenues
Revenues
|
359100000 | USD |
CY2019Q1 | us-gaap |
Revenues
Revenues
|
157000000.0 | USD |
CY2020Q1 | clf |
Adjusted Ebitda
AdjustedEBITDA
|
22700000 | USD |
CY2019Q1 | clf |
Adjusted Ebitda
AdjustedEBITDA
|
21200000 | USD |
CY2020Q1 | us-gaap |
Deferred Revenue Revenue Recognized1
DeferredRevenueRevenueRecognized1
|
34600000 | USD |
CY2020Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-48600000 | USD |
CY2019Q1 | us-gaap |
Profit Loss
ProfitLoss
|
-22100000 | USD |
CY2020Q1 | clf |
Ebitda
EBITDA
|
-34500000 | USD |
CY2019Q1 | clf |
Ebitda
EBITDA
|
19200000 | USD |
CY2020Q1 | clf |
Adjusted Ebitda
AdjustedEBITDA
|
22700000 | USD |
CY2019Q1 | clf |
Adjusted Ebitda
AdjustedEBITDA
|
21200000 | USD |
CY2020Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
3500000 | USD |
CY2020Q1 | clf |
Depreciation Depletionand Amortization Attributableto Noncontrolling Interests
DepreciationDepletionandAmortizationAttributabletoNoncontrollingInterests
|
1100000 | USD |
CY2020Q1 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
5812200000 | USD |
CY2019Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
3027400000 | USD |
CY2020Q1 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
1262400000 | USD |
CY2019Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
1098400000 | USD |
CY2020Q1 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
4549800000 | USD |
CY2019Q1 | us-gaap |
Depreciation
Depreciation
|
19600000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
235200000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
25200000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
210000000.0 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liability Gross
FiniteLivedIntangibleLiabilityGross
|
140000000.0 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liability Accumulated Amortization
FiniteLivedIntangibleLiabilityAccumulatedAmortization
|
2100000 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liability Net
FiniteLivedIntangibleLiabilityNet
|
137900000 | USD |
CY2020Q1 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
1100000 | USD |
CY2019Q1 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
200000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year
FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
|
8100000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
10800000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
10800000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
10800000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
10800000 | USD |
CY2020Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
10800000 | USD |
CY2020Q1 | clf |
Amortizationof Intangible Liability
AmortizationofIntangibleLiability
|
2100000 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liabilities Amortization Credit Year Two
FiniteLivedIntangibleLiabilitiesAmortizationCreditYearTwo
|
10900000 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liabilities Amortization Credit Year Three
FiniteLivedIntangibleLiabilitiesAmortizationCreditYearThree
|
10900000 | USD |
CY2020Q1 | us-gaap |
Line Of Credit Facility Maximum Borrowing Capacity
LineOfCreditFacilityMaximumBorrowingCapacity
|
2000000000 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liabilities Amortization Credit Next Twelve Months
FiniteLivedIntangibleLiabilitiesAmortizationCreditNextTwelveMonths
|
10900000 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liabilities Amortization Credit Remainderof Fiscal Year
FiniteLivedIntangibleLiabilitiesAmortizationCreditRemainderofFiscalYear
|
7000000.0 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liabilities Amortization Credit Year Four
FiniteLivedIntangibleLiabilitiesAmortizationCreditYearFour
|
10900000 | USD |
CY2020Q1 | clf |
Finite Lived Intangible Liabilities Amortization Credit Year Five
FiniteLivedIntangibleLiabilitiesAmortizationCreditYearFive
|
10900000 | USD |
CY2020Q1 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
4357100000 | USD |
CY2019Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
2113800000 | USD |
CY2020Q1 | us-gaap |
Extinguishment Of Debt Amount
ExtinguishmentOfDebtAmount
|
739900000 | USD |
CY2020Q1 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
3200000 | USD |
CY2019Q1 | us-gaap |
Extinguishment Of Debt Amount
ExtinguishmentOfDebtAmount
|
10000000.0 | USD |
CY2019Q1 | us-gaap |
Gains Losses On Extinguishment Of Debt
GainsLossesOnExtinguishmentOfDebt
|
-300000 | USD |
CY2019Q1 | us-gaap |
Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
|
P6Y | |
CY2020Q1 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.084 | |
CY2020Q1 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
7300000 | USD |
CY2020Q1 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
33500000 | USD |
CY2020Q1 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
0 | USD |
CY2020Q1 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
12800000 | USD |
CY2020Q1 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
|
462000000.0 | USD |
CY2020Q1 | us-gaap |
Long Term Debt Maturities Repayments Of Principal After Year Five
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
|
4054900000 | USD |
CY2020Q1 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
4570500000 | USD |
CY2020Q1 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
3800000 | USD |
CY2019Q1 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
1000000.0 | USD |
CY2020Q1 | us-gaap |
Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
|
2100000 | USD |
CY2019Q1 | us-gaap |
Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
|
800000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Interest Expense
FinanceLeaseInterestExpense
|
500000 | USD |
CY2019Q1 | us-gaap |
Finance Lease Interest Expense
FinanceLeaseInterestExpense
|
300000 | USD |
CY2020Q1 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
4100000 | USD |
CY2019Q1 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
1700000 | USD |
CY2020Q1 | us-gaap |
Variable Lease Cost
VariableLeaseCost
|
2800000 | USD |
CY2019Q1 | us-gaap |
Variable Lease Cost
VariableLeaseCost
|
0 | USD |
CY2020Q1 | us-gaap |
Lease Cost
LeaseCost
|
13300000 | USD |
CY2019Q1 | us-gaap |
Lease Cost
LeaseCost
|
3800000 | USD |
CY2020Q1 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
1100000 | USD |
CY2019Q1 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
1000000.0 | USD |
CY2020Q1 | us-gaap |
Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
|
500000 | USD |
CY2019Q1 | us-gaap |
Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
|
300000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
2100000 | USD |
CY2019Q1 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
800000 | USD |
CY2020Q1 | us-gaap |
Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
|
29900000 | USD |
CY2019Q1 | us-gaap |
Right Of Use Asset Obtained In Exchange For Finance Lease Liability
RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
|
15100000 | USD |
CY2020Q1 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P8Y | |
CY2019Q1 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P10Y | |
CY2020Q1 | us-gaap |
Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
|
P11Y | |
CY2019Q1 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.079 | |
CY2020Q1 | us-gaap |
Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
|
0.068 | |
CY2019Q1 | us-gaap |
Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
|
0.047 | |
CY2020Q1 | us-gaap |
Finance Lease Liability Payments Remainder Of Fiscal Year
FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear
|
11100000 | USD |
CY2020Q1 | us-gaap |
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
|
43000000.0 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Payments Due Year Two
FinanceLeaseLiabilityPaymentsDueYearTwo
|
13600000 | USD |
CY2020Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
56000000.0 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Payments Due Year Three
FinanceLeaseLiabilityPaymentsDueYearThree
|
12500000 | USD |
CY2020Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
45600000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Payments Due Year Four
FinanceLeaseLiabilityPaymentsDueYearFour
|
10600000 | USD |
CY2020Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
39400000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Payments Due Year Five
FinanceLeaseLiabilityPaymentsDueYearFive
|
10500000 | USD |
CY2020Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
29000000.0 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Payments Due After Year Five
FinanceLeaseLiabilityPaymentsDueAfterYearFive
|
56000000.0 | USD |
CY2020Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
132700000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
|
114300000 | USD |
CY2020Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
345700000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Undiscounted Excess Amount
FinanceLeaseLiabilityUndiscountedExcessAmount
|
42900000 | USD |
CY2020Q1 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
104100000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability
FinanceLeaseLiability
|
71400000 | USD |
CY2020Q1 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
241600000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
|
11400000 | USD |
CY2020Q1 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
40400000 | USD |
CY2020Q1 | us-gaap |
Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
|
60000000.0 | USD |
CY2020Q1 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
201200000 | USD |
CY2020Q1 | us-gaap |
Assets Fair Value Disclosure
AssetsFairValueDisclosure
|
21200000 | USD |
CY2020Q1 | us-gaap |
Financial Liabilities Fair Value Disclosure
FinancialLiabilitiesFairValueDisclosure
|
32400000 | USD |
CY2019Q4 | us-gaap |
Assets Fair Value Disclosure
AssetsFairValueDisclosure
|
233400000 | USD |
CY2019Q4 | us-gaap |
Financial Liabilities Fair Value Disclosure
FinancialLiabilitiesFairValueDisclosure
|
4300000 | USD |
CY2019Q4 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
163200000 | USD |
CY2020Q1 | clf |
Asset Retirement Obligation Liabilities Assumedin Acquisition
AssetRetirementObligationLiabilitiesAssumedinAcquisition
|
13900000 | USD |
CY2019Q1 | us-gaap |
Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss
FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
|
-9800000 | USD |
CY2020Q1 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
2200000 | USD |
CY2019Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
45800000 | USD |
CY2018Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
91400000 | USD |
CY2020Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
|
26200000 | USD |
CY2019Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
|
-15300000 | USD |
CY2020Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
19600000 | USD |
CY2019Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
106700000 | USD |
CY2020Q1 | us-gaap |
Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss
FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
|
-25300000 | USD |
CY2019Q1 | us-gaap |
Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss
FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
|
15300000 | USD |
CY2019Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
|
1100000 | USD |
CY2018Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
|
0 | USD |
CY2020Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
|
-600000 | USD |
CY2019Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
|
-9800000 | USD |
CY2020Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
|
1700000 | USD |
CY2019Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
|
0 | USD |
CY2020Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
|
0 | USD |
CY2019Q1 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value
FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
|
9800000 | USD |
CY2020Q1 | us-gaap |
Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss
FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
|
0 | USD |
CY2019Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
165300000 | USD |
CY2020Q1 | clf |
Sharebased Compensation Arrangementby Sharebased Payment Award Conversion Ratio
SharebasedCompensationArrangementbySharebasedPaymentAwardConversionRatio
|
0.400 | |
CY2020Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
|
0.51 | |
CY2020Q1 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.474 | |
CY2020Q1 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
CY2019Q1 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.129 | |
CY2020Q1 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
-4000000.0 | USD |
CY2019Q1 | us-gaap |
Income Tax Reconciliation Other Reconciling Items
IncomeTaxReconciliationOtherReconcilingItems
|
-400000 | USD |
CY2020Q1 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
181400000 | USD |
CY2019Q4 | us-gaap |
Asset Retirement Obligation Current
AssetRetirementObligationCurrent
|
2100000 | USD |
CY2020Q1 | us-gaap |
Asset Retirement Obligations Noncurrent
AssetRetirementObligationsNoncurrent
|
179200000 | USD |
CY2019Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
165300000 | USD |
CY2018Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
172400000 | USD |
CY2020Q1 | clf |
Asset Retirement Obligation Liabilities Assumedin Acquisition
AssetRetirementObligationLiabilitiesAssumedinAcquisition
|
13900000 | USD |
CY2019 | clf |
Asset Retirement Obligation Liabilities Assumedin Acquisition
AssetRetirementObligationLiabilitiesAssumedinAcquisition
|
0 | USD |
CY2020Q1 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
2600000 | USD |
CY2019 | us-gaap |
Asset Retirement Obligation Accretion Expense
AssetRetirementObligationAccretionExpense
|
10100000 | USD |
CY2020Q1 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
400000 | USD |
CY2019 | us-gaap |
Asset Retirement Obligation Liabilities Settled
AssetRetirementObligationLiabilitiesSettled
|
800000 | USD |
CY2020Q1 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
0 | USD |
CY2019 | us-gaap |
Asset Retirement Obligation Revision Of Estimate
AssetRetirementObligationRevisionOfEstimate
|
-16400000 | USD |
CY2020Q1 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
181400000 | USD |
CY2019Q4 | us-gaap |
Asset Retirement Obligation
AssetRetirementObligation
|
165300000 | USD |
CY2019Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
|
0 | USD |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
-49200000 | USD |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest
IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
|
-22100000 | USD |
CY2020Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
3500000 | USD |
CY2020Q1 | us-gaap |
Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net
DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
|
-32800000 | USD |
CY2020Q1 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.125 | |
CY2020Q1 | us-gaap |
Business Acquisition Equity Interest Issued Or Issuable Value Assigned
BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned
|
617600000 | USD |
CY2020Q1 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.06 | |
CY2020Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.06 | |
CY2019Q4 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.10 | |
CY2019Q3 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.06 | |
CY2019Q2 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.05 | |
CY2019Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.05 | |
CY2018Q4 | us-gaap |
Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
|
200000000 | USD |
CY2019Q2 | us-gaap |
Stock Repurchase Program Authorized Amount1
StockRepurchaseProgramAuthorizedAmount1
|
100000000 | USD |
CY2019Q1 | us-gaap |
Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
|
11500000 | shares |
CY2019Q1 | us-gaap |
Stock Repurchase Program Remaining Authorized Repurchase Amount1
StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
|
124300000 | USD |
CY2019Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
315700000 | USD |
CY2020Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
310100000 | USD |
CY2019Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
|
-3100000 | USD |
CY2019Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-318800000 | USD |
CY2020Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
|
-900000 | USD |
CY2020Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
|
-6100000 | USD |
CY2020Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-317100000 | USD |
CY2018Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
281100000 | USD |
CY2018Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
|
-2800000 | USD |
CY2018Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-283900000 | USD |
CY2019Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
275400000 | USD |
CY2019Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
|
-100000 | USD |
CY2019Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-275500000 | USD |
CY2020Q1 | us-gaap |
Revenue From Related Parties
RevenueFromRelatedParties
|
10800000 | USD |
CY2019Q1 | us-gaap |
Revenue From Related Parties
RevenueFromRelatedParties
|
46900000 | USD |
CY2020Q1 | us-gaap |
Revenues
Revenues
|
359100000 | USD |
CY2019Q1 | us-gaap |
Revenues
Revenues
|
157000000.0 | USD |
CY2020Q1 | clf |
Percentage Of Related Party Revenue
PercentageOfRelatedPartyRevenue
|
0.030 | |
CY2019Q1 | clf |
Percentage Of Related Party Revenue
PercentageOfRelatedPartyRevenue
|
0.299 | |
CY2020Q1 | us-gaap |
Related Party Transaction Purchases From Related Party
RelatedPartyTransactionPurchasesFromRelatedParty
|
2500000 | USD |
CY2019Q1 | us-gaap |
Related Party Transaction Purchases From Related Party
RelatedPartyTransactionPurchasesFromRelatedParty
|
0 | USD |
CY2020Q1 | us-gaap |
Deferred Revenue Revenue Recognized1
DeferredRevenueRevenueRecognized1
|
34600000 | USD |
CY2019Q1 | us-gaap |
Net Income Loss Attributable To Noncontrolling Interest
NetIncomeLossAttributableToNoncontrollingInterest
|
0 | USD |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
-52700000 | USD |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations
IncomeLossFromContinuingOperations
|
-22100000 | USD |
CY2020Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
600000 | USD |
CY2019Q1 | us-gaap |
Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity
IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
|
0 | USD |
CY2020Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-52100000 | USD |
CY2019Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-22100000 | USD |
CY2020Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
297500000 | shares |
CY2019Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
289500000 | shares |
CY2020Q1 | us-gaap |
Incremental Common Shares Attributable To Conversion Of Debt Securities
IncrementalCommonSharesAttributableToConversionOfDebtSecurities
|
0 | shares |
CY2019Q1 | us-gaap |
Incremental Common Shares Attributable To Conversion Of Debt Securities
IncrementalCommonSharesAttributableToConversionOfDebtSecurities
|
0 | shares |
CY2020Q1 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
CY2019Q1 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
CY2020Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
297500000 | shares |
CY2019Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
289500000 | shares |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.18 | |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations Per Basic Share
IncomeLossFromContinuingOperationsPerBasicShare
|
-0.08 | |
CY2020Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
0 | |
CY2019Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare
|
0 | |
CY2020Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.18 | |
CY2019Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-0.08 | |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.18 | |
CY2019Q1 | us-gaap |
Income Loss From Continuing Operations Per Diluted Share
IncomeLossFromContinuingOperationsPerDilutedShare
|
-0.08 | |
CY2020Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
0 | |
CY2019Q1 | us-gaap |
Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share
DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare
|
0 | |
CY2020Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.18 | |
CY2019Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-0.08 | |
CY2020Q1 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
1600000 | shares |
CY2019Q1 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
11500000 | shares |
CY2020Q1 | clf |
Estimated Project Capital Expenditures
EstimatedProjectCapitalExpenditures
|
1000000000 | USD |
CY2020Q1 | clf |
Total Project Expenditures Excluding Capitalized Interest
TotalProjectExpendituresExcludingCapitalizedInterest
|
800000000 | USD |
CY2019Q4 | us-gaap |
Accrued Environmental Loss Contingencies Current
AccruedEnvironmentalLossContingenciesCurrent
|
300000 | USD |
CY2020Q1 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
40000000.0 | USD |
CY2019Q4 | us-gaap |
Accrual For Environmental Loss Contingencies
AccrualForEnvironmentalLossContingencies
|
2000000.0 | USD |
CY2020Q1 | us-gaap |
Accrued Environmental Loss Contingencies Current
AccruedEnvironmentalLossContingenciesCurrent
|
6400000 | USD |
CY2020Q1 | us-gaap |
Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
|
33600000 | USD |
CY2019Q4 | us-gaap |
Accrued Environmental Loss Contingencies Noncurrent
AccruedEnvironmentalLossContingenciesNoncurrent
|
1700000 | USD |