$CLF
CLEVELAND-CLIFFS INC. Stock $clf

$clf Overview Financials Valuation SEC Filings Company Website

2012 Q4 Form 10-Q Financial Statement

#000076406512000007 Filed on October 25, 2012

Income Statement

Concept	2012 Q4	2012 Q3	2011 Q4
Revenue	$1.536B	$1.545B	$1.604B
YoY Change	-4.23%	-26.05%	30.82%
Cost Of Revenue	$1.297B	$1.347B	$1.124B
YoY Change	15.47%	8.07%	38.75%
Gross Profit	$238.5M	$198.3M	$480.1M
YoY Change	-50.32%	-76.48%	15.38%
Gross Profit Margin	15.53%	12.84%	29.94%
Selling, General & Admin	$79.90M	$63.90M	$83.90M
YoY Change	-4.77%	4.24%	192.33%
% of Gross Profit	33.5%	32.22%	17.48%
Research & Development	$47.60M	$45.60M	$25.10M
YoY Change	89.64%	71.43%	75.52%
% of Gross Profit	19.96%	23.0%	5.23%
Depreciation & Amortization	$143.5M	$132.9M	$120.6M
YoY Change	18.99%	11.03%	45.65%
% of Gross Profit	60.17%	67.02%	25.12%
Operating Expenses	$158.7M	$122.0M	$100.5M
YoY Change	57.91%	369.23%	82.73%
Operating Profit	$79.80M	$76.30M	$379.6M
YoY Change	-78.98%	-90.66%	5.12%
Interest Expense	-$54.80M	$47.20M	-$36.60M
YoY Change	49.73%	-4.45%	-344.0%
% of Operating Profit	-68.67%	61.86%	-9.64%
Other Income/Expense, Net	-$3.500M	-$43.90M	-$8.700M
YoY Change	-59.77%	-19.74%	-58.96%
Pretax Income	-$1.028B	$32.40M	$306.1M
YoY Change	-435.97%	-95.75%	-13.75%
Income Tax	$491.1M	-$64.00M	$120.5M
% Of Pretax Income		-197.53%	39.37%
Net Earnings	-$1.618B	$85.10M	$185.4M
YoY Change	-972.87%	-85.84%	-51.78%
Net Earnings / Revenue	-105.36%	5.51%	11.56%
Basic Earnings Per Share	-$11.36	$0.60	$1.30
Diluted Earnings Per Share	-$11.36	$0.59	$1.30
COMMON SHARES
Basic Shares Outstanding	142.5M shares	142.4M shares
Diluted Shares Outstanding		142.9M shares

Balance Sheet

Concept	2012 Q4	2012 Q3	2011 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$195.0M	$36.00M	$519.0M
YoY Change	-62.43%	-93.39%	-66.88%
Cash & Equivalents	$195.2M	$36.30M	$519.3M
Short-Term Investments
Other Short-Term Assets	$294.8M	$322.1M	$166.3M
YoY Change	77.27%	45.09%	-31.0%
Inventory	$436.5M	$526.7M	$456.9M
Prepaid Expenses
Receivables	$329.0M	$285.9M	$287.9M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.650B	$1.665B	$1.911B
YoY Change	-13.67%	-12.58%	-26.04%
LONG-TERM ASSETS
Property, Plant & Equipment	$11.21B	$11.03B	$10.40B
YoY Change	7.72%	12.16%	161.46%
Goodwill	$167.4M	$1.167B	$1.152B
YoY Change	-85.47%		486.31%
Intangibles	$129.0M	$133.8M	$147.0M
YoY Change	-12.24%
Long-Term Investments	$108.4M	$488.3M	$504.8M
YoY Change	-78.53%	-5.37%	-16.01%
Other Assets	$717.6M	$170.4M	$191.2M
YoY Change	275.31%	-43.58%	2.8%
Total Long-Term Assets	$11.92B	$13.63B	$12.63B
YoY Change	-5.59%	13.22%	143.17%
TOTAL ASSETS
Total Short-Term Assets	$1.650B	$1.665B	$1.911B
Total Long-Term Assets	$11.92B	$13.63B	$12.63B
Total Assets	$13.57B	$15.30B	$14.54B
YoY Change	-6.65%	9.69%	86.95%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$555.5M	$422.1M	$364.7M
YoY Change	52.32%	14.08%	36.59%
Accrued Expenses	$258.9M	$485.2M	$165.0M
YoY Change	56.91%	34.78%	-38.2%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$94.10M	$369.7M	$74.80M
YoY Change	25.8%	496.29%
Total Short-Term Liabilities	$1.382B	$1.714B	$1.502B
YoY Change	-8.03%	31.97%	45.98%
LONG-TERM LIABILITIES
Long-Term Debt	$3.961B	$3.514B	$3.609B
YoY Change	9.75%	-9.52%	110.67%
Other Long-Term Liabilities	$492.6M	$318.6M	$449.8M
YoY Change	9.52%	-70.36%	-60.34%
Total Long-Term Liabilities	$4.453B	$3.833B	$4.059B
YoY Change	9.73%	-22.71%	42.55%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.382B	$1.714B	$1.502B
Total Long-Term Liabilities	$4.453B	$3.833B	$4.059B
Total Liabilities	$7.814B	$7.608B	$7.502B
YoY Change	4.16%	-7.47%	90.79%
SHAREHOLDERS EQUITY
Retained Earnings	$3.218B	$4.926B	$4.424B
YoY Change	-27.27%
Common Stock		$18.50M	$18.50M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$322.6M	$322.6M	$336.0M
YoY Change	-3.99%
Treasury Stock Shares	6.700M shares	6.704M shares	7.174M shares
Shareholders Equity	$4.633B	$6.337B	$5.785B
YoY Change
Total Liabilities & Shareholders Equity	$13.57B	$15.30B	$14.54B
YoY Change	-6.65%	9.69%	86.96%

Cashflow Statement

Concept	2012 Q4	2012 Q3	2011 Q4
OPERATING ACTIVITIES
Net Income	-$1.618B	$85.10M	$185.4M
YoY Change	-972.87%	-85.84%	-51.78%
Depreciation, Depletion And Amortization	$143.5M	$132.9M	$120.6M
YoY Change	18.99%	11.03%	45.65%
Cash From Operating Activities	$239.0M	$308.3M	$743.1M
YoY Change	-67.84%	-62.43%	7.85%
INVESTING ACTIVITIES
Capital Expenditures	-$333.9M	-$276.6M	-$401.8M
YoY Change	-16.9%	18.0%	244.01%
Acquisitions
YoY Change
Other Investing Activities	$156.8M	$12.80M	$16.00M
YoY Change	880.0%	-65.03%	-61.63%
Cash From Investing Activities	-$177.1M	-$263.8M	-$385.8M
YoY Change	-54.1%	33.37%	413.72%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	92.40M	-164.4M	-391.5M
YoY Change	-123.6%	-43.85%	1466.0%
NET CHANGE
Cash From Operating Activities	239.0M	308.3M	743.1M
Cash From Investing Activities	-177.1M	-263.8M	-385.8M
Cash From Financing Activities	92.40M	-164.4M	-391.5M
Net Change In Cash	154.3M	-119.9M	-34.20M
YoY Change	-551.17%	-136.32%	-105.81%
FREE CASH FLOW
Cash From Operating Activities	$239.0M	$308.3M	$743.1M
Capital Expenditures	-$333.9M	-$276.6M	-$401.8M
Free Cash Flow	$572.9M	$584.9M	$1.145B
YoY Change	-49.96%	-44.56%	42.08%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	422100000	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	364700000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	287900000	USD
CY2012Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	285900000	USD
CY2012Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	16600000	USD
CY2011Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	15500000	USD
CY2012Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	84700000	USD
CY2011Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	324500000	USD
CY2012Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	485200000	USD
CY2011Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	384800000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1291500000	USD
CY2012Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1653000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-92600000	USD
CY2012Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-51000000	USD
CY2011Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1770800000	USD
CY2012Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1766200000	USD
CY2012Q3	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	354500000	USD
CY2011Q3	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	255900000	USD
	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	553300000	USD
	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	974000000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8800000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9000000	USD
CY2012Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4800000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12500000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	500000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	9400000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14100000	USD
CY2011Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3300000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	194900000	USD
CY2012Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	208300000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6200000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	162100000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	-15700000	USD
	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	-13200000	USD
CY2011	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	100000	USD
	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	200000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	700000	USD
	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled		USD
	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate		USD
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	3700000	USD
CY2012Q3	us-gaap	Assets Assets	15296800000	USD
CY2011Q4	us-gaap	Assets Assets	14541700000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	1911200000	USD
CY2012Q3	us-gaap	Assets Current AssetsCurrent	1665400000	USD
CY2012Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	104700000	USD
CY2011Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	544200000	USD
CY2012Q3	us-gaap	Assets Held For Sale Current AssetsHeldForSaleCurrent	156600000	USD
CY2011Q4	us-gaap	Assets Held For Sale Current AssetsHeldForSaleCurrent	159900000	USD
CY2012Q3	us-gaap	Business Acquisition Purchase Price Allocation Deferred Income Taxes Asset Liability Net BusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesAssetLiabilityNet	1041800000	USD
CY2012Q3	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	997300000	USD
CY2012Q3	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	0	USD
CY2012Q3	us-gaap	Business Acquisition Purchase Price Allocation Mineral Rights BusinessAcquisitionPurchasePriceAllocationMineralRights	4825600000	USD
CY2012Q3	us-gaap	Business Combination Acquisition Of Less Than100 Percent Noncontrolling Interest Fair Value BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue	1075400000	USD
CY2012Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	25000000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2011Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2100000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-74400000	USD
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-125100000	USD
	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	-55300000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	381300000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	21100000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	40300000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	55900000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	67200000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	72200000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	124600000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	86200000	USD
CY2012Q3	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	295100000	USD
CY2012Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	36300000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	519300000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	351200000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-482100000	USD
	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1021600000	USD
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.63
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.54
CY2011Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.28
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.56
CY2012Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.125
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.125
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2012Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2011Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	224000000	shares
CY2012Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	149195469	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	149195469	shares
CY2012Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	142491645	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	142021718	shares
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	18500000	USD
CY2012Q3	us-gaap	Common Stock Value CommonStockValue	18500000	USD
CY2012Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1500000	USD
CY2011Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-400000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4500000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1499000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	790300000	USD
CY2012Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1346600000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3403200000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	2829400000	USD
CY2011Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1246000000	USD
CY2012Q3	us-gaap	Debt Instrument Basis Spread On Variable Rate DebtInstrumentBasisSpreadOnVariableRate	0.035
CY2012Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3884000000	USD
CY2011Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3683500000	USD
	us-gaap	Debt Instrument Description Of Variable Rate Basis DebtInstrumentDescriptionOfVariableRateBasis	prime rate
CY2012Q3	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	5397100000	USD
CY2011Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	5447000000	USD
CY2012Q3	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.09
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-29700000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-352500000	USD
CY2011Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	126600000	USD
CY2012Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	125100000	USD
CY2012Q3	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	612300000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	209500000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1062400000	USD
CY2012Q3	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1147000000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	306300000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	382300000	USD
CY2011Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	119700000	USD
CY2012Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	132900000	USD
CY2012Q3	us-gaap	Derivative Assets DerivativeAssets	55900000	USD
CY2011Q4	us-gaap	Derivative Assets DerivativeAssets	157900000	USD
CY2011Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	82100000	USD
CY2012Q3	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	78300000	USD
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	165900000	USD
CY2012Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	79400000	USD
CY2012Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	13000000	USD
CY2011Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	23000000	USD
CY2011Q3	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	1500000	USD
	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	3200000	USD
CY2012Q3	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	6400000	USD
	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	13700000	USD
CY2011Q3	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-15200000	USD
	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-10300000	USD
CY2012Q3	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	12700000	USD
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2011Q3	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	240600000	USD
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	849900000	USD
CY2012Q3	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	40600000	USD
	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	122900000	USD
CY2012Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	11700000	USD
CY2011Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	19500000	USD
CY2011Q3	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2011-09-01
CY2011Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2011-03-01
CY2012Q1	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2012-03-01
CY2012Q4	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2012-08-31
CY2011Q2	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2011-06-01
CY2012Q2	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2012-06-01
CY2011Q4	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2011-12-01
	us-gaap	Dividends Common Stock DividendsCommonStock	78800000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	217800000	USD
CY2011Q3	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.28
CY2011Q1	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.14
CY2012Q2	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.625
CY2012Q3	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.625
CY2011Q4	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.280
CY2012Q1	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.280
CY2011Q2	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.140
CY2011Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2011-11-18
CY2011Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2011-04-29
CY2011Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2011-02-15
CY2012Q1	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2012-02-15
CY2011Q3	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2011-08-15
CY2012Q2	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2012-04-27
CY2012Q4	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2012-08-15
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	10.27
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.06
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.17
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.15
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	10.22
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.04
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-15300000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-100000	USD
CY2011Q4	us-gaap	Equity Method Investments EquityMethodInvestments	504800000	USD
CY2012Q3	us-gaap	Equity Method Investments EquityMethodInvestments	488300000	USD
CY2011Q3	us-gaap	Exploration Expense Mining ExplorationExpenseMining	26600000	USD
	us-gaap	Exploration Expense Mining ExplorationExpenseMining	55400000	USD
	us-gaap	Exploration Expense Mining ExplorationExpenseMining	95200000	USD
CY2012Q3	us-gaap	Exploration Expense Mining ExplorationExpenseMining	45600000	USD
CY2012Q3	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Trading Revenue FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInTradingRevenue	-24900000	USD
	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Trading Revenue FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInTradingRevenue	-144900000	USD
	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Trading Revenue FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInTradingRevenue	-129600000	USD
CY2011Q3	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Trading Revenue FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInTradingRevenue	-53800000	USD
CY2011	us-gaap	Fair Value Assumptions Risk Free Interest Rate FairValueAssumptionsRiskFreeInterestRate	0.0212
	us-gaap	Fair Value Assumptions Risk Free Interest Rate FairValueAssumptionsRiskFreeInterestRate	0.0331
	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Trading Revenue FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInTradingRevenue	0	USD
CY2012Q3	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Trading Revenue FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInTradingRevenue	-4100000	USD
	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Trading Revenue FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInTradingRevenue	11700000	USD
CY2011Q3	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss Included In Trading Revenue FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInTradingRevenue	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-144900000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-129600000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-24900000	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-53800000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	0	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	52900000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	231600000	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	50000000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	102700000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	20000000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2011Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	20000000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	157900000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	45600000	USD
CY2011Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	64000000	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	67800000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	55900000	USD
CY2012Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	83900000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-4100000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	11700000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	0	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	19500000	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
CY2012Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	11700000	USD
CY2011Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
CY2012Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	15800000	USD
CY2011Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	0	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	19500000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	47500000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	61700000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	17900000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	4500000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	6000000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	6000000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	6000000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	17900000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	195500000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	194500000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	147000000	USD
CY2012Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	133800000	USD
CY2012Q3	us-gaap	Foreign Currency Contract Asset Fair Value Disclosure ForeignCurrencyContractAssetFairValueDisclosure	23500000	USD
CY2011Q4	us-gaap	Foreign Currency Contract Asset Fair Value Disclosure ForeignCurrencyContractAssetFairValueDisclosure	8000000	USD
CY2012Q3	us-gaap	Foreign Currency Contracts Liability Fair Value Disclosure ForeignCurrencyContractsLiabilityFairValueDisclosure	1300000	USD
CY2011Q4	us-gaap	Foreign Currency Contracts Liability Fair Value Disclosure ForeignCurrencyContractsLiabilityFairValueDisclosure	3500000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	100500000	USD
	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	300000	USD
CY2012Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	0	USD
CY2011Q3	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	-6200000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	1152100000	USD
CY2012Q3	us-gaap	Goodwill Goodwill	1167200000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	196500000	USD
CY2011	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	983400000	USD
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	13800000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss		USD
CY2011	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	-27800000	USD
	us-gaap	Goodwill Other Changes GoodwillOtherChanges		USD
CY2011	us-gaap	Goodwill Other Changes GoodwillOtherChanges	-400000	USD
	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	13800000	USD
CY2011	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	400000	USD
	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	1300000	USD
CY2012Q3	us-gaap	Gross Profit GrossProfit	198300000	USD
	us-gaap	Gross Profit GrossProfit	933600000	USD
	us-gaap	Gross Profit GrossProfit	2130800000	USD
CY2011Q3	us-gaap	Gross Profit GrossProfit	843100000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	713900000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	87800000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	618000000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1429900000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	762400000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	526600000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	32400000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1884400000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	739100000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	81100000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1600000000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	769800000	USD
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	10.24
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.62
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	4.29
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	5.02
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	10.19
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	5.00
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	4.27
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.61
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-16800000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	5100000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	3700000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-2700000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.03
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.12
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.04
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.03
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.04
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.12
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2800000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-22700000	USD
CY2011Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11100000	USD
CY2012Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-15300000	USD
CY2011Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3700000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	287200000	USD
CY2012Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-64000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-235200000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-252300000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	139500000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	128500000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	70400000	USD
	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	6100000	USD
	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	10300000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	118600000	USD
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	62500000	USD
CY2011Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	786000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	448000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	758000	shares
CY2012Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	499000	shares
CY2012Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	133800000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	147000000	USD
	us-gaap	Interest Expense InterestExpense	168200000	USD
CY2011Q3	us-gaap	Interest Expense InterestExpense	49400000	USD
CY2012Q3	us-gaap	Interest Expense InterestExpense	47200000	USD
	us-gaap	Interest Expense InterestExpense	141200000	USD
CY2012Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	339800000	USD
CY2011Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	273300000	USD
CY2012Q3	us-gaap	Inventory Net InventoryNet	526700000	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	456900000	USD
CY2012Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	186900000	USD
CY2011Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	183600000	USD
	us-gaap	Inventory Write Down InventoryWriteDown		USD
CY2012Q3	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	517000000	USD
CY2011Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	526600000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	19200000	USD
CY2011Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	4200000	USD
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	17900000	USD
CY2012Q3	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	6700000	USD
CY2012Q3	us-gaap	Liabilities Liabilities	7607600000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	7502000000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14541700000	USD
CY2012Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	15296800000	USD
CY2012Q3	us-gaap	Liabilities Current LiabilitiesCurrent	1714300000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1502100000	USD
CY2012Q3	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	13000000	USD
CY2011Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	23000000	USD
CY2011Q4	us-gaap	Liabilities Of Assets Held For Sale LiabilitiesOfAssetsHeldForSale	25900000	USD
CY2012Q3	us-gaap	Liabilities Of Assets Held For Sale LiabilitiesOfAssetsHeldForSale	29700000	USD
CY2012Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	369700000	USD
CY2011Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	74800000	USD
CY2012Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2400000000	USD
CY2012Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	-24900000	USD
CY2012Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	299100000	USD
CY2012Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	428800000	USD
CY2012Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	124600000	USD
CY2012Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	369700000	USD
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3608700000	USD
CY2012Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3514300000	USD
CY2011Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	211400000	USD
CY2012Q3	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	225400000	USD
CY2012Q3	us-gaap	Minority Interest MinorityInterest	1352400000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	1254700000	USD
	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-947600000	USD
	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	8000000	USD
	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	4500000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	27200000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2366600000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-784700000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4918600000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	275500000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1545700000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	85100000	USD
	us-gaap	Net Income Loss NetIncomeLoss	719000000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	601200000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1433600000	USD
CY2012Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-6700000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	25200000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	170100000	USD
CY2011Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	151800000	USD
CY2012Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-43900000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-61000000	USD
CY2011Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-54700000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-134700000	USD
CY2011Q3	us-gaap	Operating Expenses OperatingExpenses	26000000	USD
CY2012Q3	us-gaap	Operating Expenses OperatingExpenses	122000000	USD
	us-gaap	Operating Expenses OperatingExpenses	185400000	USD
	us-gaap	Operating Expenses OperatingExpenses	272300000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1945400000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	76300000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	817100000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	661300000	USD
CY2012Q3	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	101300000	USD
CY2012Q3	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	7200000	USD
CY2012Q3	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	8100000	USD
CY2012Q3	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	13000000	USD
CY2012Q3	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	19800000	USD
CY2012Q3	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	24600000	USD
CY2012Q3	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	28600000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	188200000	USD
CY2012Q3	us-gaap	Other Assets Current OtherAssetsCurrent	322100000	USD
CY2012Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	170400000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	191200000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-30800000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-100000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-600000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-11600000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-13500000	USD
	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	13600000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	14200000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-16700000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	12200000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-74800000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	18600000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-132200000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-104700000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	46100000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-155600000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	40300000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1328400000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	446000000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	123900000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	760600000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-14400000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-20900000	USD
CY2012Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-7600000	USD
CY2011Q3	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-4900000	USD
CY2011Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	200800000	USD
CY2012Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	197800000	USD
CY2012Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	318600000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	338000000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	10300000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3700000	USD
CY2011Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	900000	USD
CY2012Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3300000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	6700000	USD
CY2012Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-12500000	USD
CY2011Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	64000000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	25500000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	59400000	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	0	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	-93100000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-15700000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-8900000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	221900000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	54800000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	78800000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	217800000	USD
	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	300000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	4423500000	USD
	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	125000000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	478900000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	793600000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-45400000	USD
	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-43300000	USD
CY2012Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	603300000	USD
CY2011Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	665800000	USD
	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	68800000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	853700000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	853700000	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	1250000000	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	998100000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	750000000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-27100000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-23900000	USD
	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	250000000	USD
	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	670000000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	78400000	USD
	us-gaap	Profit Loss ProfitLoss	1603700000	USD
	us-gaap	Profit Loss ProfitLoss	744200000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	753000000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	11695600000	USD
CY2012Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	12683700000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10404100000	USD
CY2012Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11030700000	USD
	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	337200000	USD
	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	750000000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	420000000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	49900000	USD
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	265400000	USD
CY2012Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4925700000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4424300000	USD
	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1279600000	USD
	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1779900000	USD
CY2012Q3	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	476100000	USD
CY2011Q3	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	869800000	USD
CY2011Q3	us-gaap	Revenues Revenues	2089100000	USD
	us-gaap	Revenues Revenues	4960200000	USD
	us-gaap	Revenues Revenues	4336800000	USD
CY2012Q3	us-gaap	Revenues Revenues	1544900000	USD
	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	4790800000	USD
CY2012Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	1447900000	USD
CY2011Q3	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	2070700000	USD
	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	4096600000	USD
CY2011Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	61300000	USD
CY2012Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	63900000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	164400000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	202600000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Offering Date ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPriceOfferingDate	1.2226
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CY2011Q2	us-gaap	Share Price SharePrice	85.63
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CY2011Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	10350000	shares
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CY2011Q3	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	4000000	shares
CY2011Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	3000000	shares
CY2011Q4	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	1000000	shares
CY2011Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	222000000	USD
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	221900000	USD
CY2012Q3	us-gaap	Stockholders Equity StockholdersEquity	6336800000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	5785000000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7039700000	USD
CY2012Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7689200000	USD
CY2011Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6864800000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3838700000	USD
CY2012Q3	us-gaap	Supplies Supplies	259500000	USD
CY2011Q4	us-gaap	Supplies Supplies	216900000	USD
CY2011Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	74
CY2011Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	7173751	shares
CY2012Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	6703824	shares
CY2012Q3	us-gaap	Treasury Stock Value TreasuryStockValue	322600000	USD
CY2011Q4	us-gaap	Treasury Stock Value TreasuryStockValue	336000000	USD
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CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	142895000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	144989000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	142780000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	142332000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	139563000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	144203000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	142396000	shares
CY2011Q4	clf	Accounts Receivable And Derivative Assets Related Parties AccountsReceivableAndDerivativeAssetsRelatedParties	180400000	USD
CY2012Q3	clf	Accounts Receivable And Derivative Assets Related Parties AccountsReceivableAndDerivativeAssetsRelatedParties	120600000	USD
	clf	Acquired Through Business Combinations AcquiredThroughBusinessCombinations		USD
CY2011	clf	Acquired Through Business Combinations AcquiredThroughBusinessCombinations	14000000	USD
CY2012Q3	clf	Below Market Sales Contracts BelowMarketSalesContracts	83800000	USD
CY2011Q4	clf	Below Market Sales Contracts BelowMarketSalesContracts	111800000	USD
CY2011Q4	clf	Below Market Sales Contracts Accumulated Amortization BelowMarketSalesContractsAccumulatedAmortization	164800000	USD
CY2012Q3	clf	Below Market Sales Contracts Accumulated Amortization BelowMarketSalesContractsAccumulatedAmortization	166900000	USD
CY2012Q3	clf	Below Market Sales Contracts Gross BelowMarketSalesContractsGross	296700000	USD
CY2011Q4	clf	Below Market Sales Contracts Gross BelowMarketSalesContractsGross	329300000	USD
CY2011Q4	clf	Below Market Sales Contracts Net BelowMarketSalesContractsNet	164500000	USD
CY2012Q3	clf	Below Market Sales Contracts Net BelowMarketSalesContractsNet	129800000	USD
	clf	Capital Contribution By Noncontrolling Interest CapitalContributionByNoncontrollingInterest	-300000	USD
	clf	Capital Contribution By Noncontrolling Interest CapitalContributionByNoncontrollingInterest	-64700000	USD
	clf	Capital Expenditures Incurred But Not Yet Paid And Capital Lease Obligations Incurred CapitalExpendituresIncurredButNotYetPaidAndCapitalLeaseObligationsIncurred	74400000	USD
	clf	Capital Expenditures Incurred But Not Yet Paid And Capital Lease Obligations Incurred CapitalExpendituresIncurredButNotYetPaidAndCapitalLeaseObligationsIncurred	180400000	USD
	clf	Future Below Market Sales Contracts Revenue Within Five Years FutureBelowMarketSalesContractsRevenueWithinFiveYears	129800000	USD
	clf	Future Below Market Sales Contracts Revenue Year Five FutureBelowMarketSalesContractsRevenueYearFive	0	USD
	clf	Future Below Market Sales Contracts Revenue Year Four FutureBelowMarketSalesContractsRevenueYearFour	23000000	USD
	clf	Future Below Market Sales Contracts Revenue Year One FutureBelowMarketSalesContractsRevenueYearOne	46000000	USD
	clf	Future Below Market Sales Contracts Revenue Year Three FutureBelowMarketSalesContractsRevenueYearThree	23000000	USD
CY2011Q3	clf	Cash And Cash Equivalents At Carrying Value Including Assets Held For Sale CashAndCashEquivalentsAtCarryingValueIncludingAssetsHeldForSale	545100000	USD
CY2012Q3	clf	Cash And Cash Equivalents At Carrying Value Including Assets Held For Sale CashAndCashEquivalentsAtCarryingValueIncludingAssetsHeldForSale	39500000	USD
CY2011Q4	clf	Cash And Cash Equivalents At Carrying Value Including Assets Held For Sale CashAndCashEquivalentsAtCarryingValueIncludingAssetsHeldForSale	521600000	USD
CY2010Q4	clf	Cash And Cash Equivalents At Carrying Value Including Assets Held For Sale CashAndCashEquivalentsAtCarryingValueIncludingAssetsHeldForSale	1566700000	USD
CY2012Q3	clf	Coverage Ratio Of Earnings Before Interest Tax Depreciation And Amortization To Total Interest Expense CoverageRatioOfEarningsBeforeInterestTaxDepreciationAndAmortizationToTotalInterestExpense	2.5
	clf	Debt To Earnings Ratio DebtToEarningsRatio	3.5
	clf	Depreciation And Depletion DepreciationAndDepletion	279700000	USD
CY2011Q3	clf	Depreciation And Depletion DepreciationAndDepletion	109600000	USD
	clf	Depreciation And Depletion DepreciationAndDepletion	364900000	USD
CY2012Q3	clf	Depreciation And Depletion DepreciationAndDepletion	127700000	USD
CY2012Q3	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Current EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrent	15700000	USD
CY2011Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Current EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrent	13700000	USD
CY2011Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Current And Noncurrent EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrentAndNoncurrent	226900000	USD
CY2012Q3	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Current And Noncurrent EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrentAndNoncurrent	242000000	USD
CY2011Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Noncurrent EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityNoncurrent	213200000	USD
CY2012Q3	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Noncurrent EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityNoncurrent	226300000	USD
CY2012Q3	clf	Finite Lived Intangible Assets Other Net FiniteLivedIntangibleAssetsOtherNet	58300000	USD
	clf	Future Below Market Sales Contracts Revenue Remainder Of Fiscal Year FutureBelowMarketSalesContractsRevenueRemainderOfFiscalYear	14700000	USD
	clf	Future Below Market Sales Contracts Revenue Year Two FutureBelowMarketSalesContractsRevenueYearTwo	23100000	USD
	clf	Increase Decrease In Deferred Revenue And Below Market Sales Contracts IncreaseDecreaseInDeferredRevenueAndBelowMarketSalesContracts	-156300000	USD
	clf	Increase Decrease In Deferred Revenue And Below Market Sales Contracts IncreaseDecreaseInDeferredRevenueAndBelowMarketSalesContracts	-36200000	USD
CY2011Q3	clf	Increase Decrease In Dividends Payable Percentage IncreaseDecreaseInDividendsPayablePercentage	1
CY2012Q1	clf	Increase Decrease In Dividends Payable Percentage IncreaseDecreaseInDividendsPayablePercentage	1.23
CY2012Q3	clf	International Investments Fair Value Disclosure InternationalInvestmentsFairValueDisclosure	25300000	USD
CY2011Q4	clf	International Investments Fair Value Disclosure InternationalInvestmentsFairValueDisclosure	27100000	USD
	clf	Management Estimate Of62 Fe ManagementEstimateOf62Fe	0.62
CY2012Q3	clf	Other Current Liabilities Related Parties OtherCurrentLiabilitiesRelatedParties	17400000	USD
CY2011Q4	clf	Other Current Liabilities Related Parties OtherCurrentLiabilitiesRelatedParties	43000000	USD
	clf	Payments To Acquire Property Plant And Equipment Net PaymentsToAcquirePropertyPlantAndEquipmentNet	793600000	USD
	clf	Payments To Acquire Property Plant And Equipment Net PaymentsToAcquirePropertyPlantAndEquipmentNet	478900000	USD
CY2011Q3	clf	Percentage Of Related Party Revenue PercentageOfRelatedPartyRevenue	0.420
	clf	Percentage Of Related Party Revenue PercentageOfRelatedPartyRevenue	0.312
	clf	Percentage Of Related Party Revenue PercentageOfRelatedPartyRevenue	0.372
CY2012Q3	clf	Percentage Of Related Party Revenue PercentageOfRelatedPartyRevenue	0.329
CY2011Q3	clf	Percentage Of Segment Revenue PercentageOfSegmentRevenue	1.00
	clf	Percentage Of Segment Revenue PercentageOfSegmentRevenue	1.00
CY2012Q3	clf	Percentage Of Segment Revenue PercentageOfSegmentRevenue	1.00
	clf	Percentage Of Segment Revenue PercentageOfSegmentRevenue	1.00
	clf	Pre Acquisition Date Quebec Mining Duties Tax PreAcquisitionDateQuebecMiningDutiesTax	16400000	USD
	clf	Reduction Of Calculated Minimum Distribution Payable To Minority Partner ReductionOfCalculatedMinimumDistributionPayableToMinorityPartner	-2600000	USD
CY2012Q3	clf	Reimbursement Revenue And Freight Revenue ReimbursementRevenueAndFreightRevenue	97000000	USD
	clf	Reimbursement Revenue And Freight Revenue ReimbursementRevenueAndFreightRevenue	240200000	USD
CY2011Q3	clf	Reimbursement Revenue And Freight Revenue ReimbursementRevenueAndFreightRevenue	18400000	USD
	clf	Reimbursement Revenue And Freight Revenue ReimbursementRevenueAndFreightRevenue	169400000	USD
	clf	Share Based Compensation Arrangement By Share Based Payment Award Grant Date Price ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDatePrice	63.62
CY2012Q3	clf	Term Loan Original Amount TermLoanOriginalAmount	1250000000	USD
CY2011Q4	clf	Total Other Assets TotalOtherAssets	2226400000	USD
CY2012Q3	clf	Total Other Assets TotalOtherAssets	2600700000	USD
CY2011Q2	clf	Total Shares Authorized TotalSharesAuthorized	231000000	shares
	clf	Undistributed Gains To Noncontrolling Interest UndistributedGainsToNoncontrollingInterest	-12600000	USD
	clf	Undistributed Gains To Noncontrolling Interest UndistributedGainsToNoncontrollingInterest	-11300000	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
	dei	Document Period End Date DocumentPeriodEndDate	2012-09-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0000764065
CY2012Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	142496147	shares
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	CLIFFS NATURAL RESOURCES INC.
	dei	Trading Symbol TradingSymbol	clf

Files In Submission

Name	View Source	Status
0000764065-12-000007-index-headers.html	Edgar Link	pending
0000764065-12-000007-index.html	Edgar Link	pending
0000764065-12-000007.txt	Edgar Link	pending
0000764065-12-000007-xbrl.zip	Edgar Link	pending
clf-20120930.xml	Edgar Link	completed
clf-20120930.xsd	Edgar Link	pending
clf-20120930_cal.xml	Edgar Link	unprocessable
clf-20120930_def.xml	Edgar Link	unprocessable
clf-20120930_lab.xml	Edgar Link	unprocessable
clf-20120930_pre.xml	Edgar Link	unprocessable
clf-2012930ex101.htm	Edgar Link	pending
clf-2012930ex103.htm	Edgar Link	pending
clf-2012930ex104.htm	Edgar Link	pending
clf-2012930ex311.htm	Edgar Link	pending
clf-2012930ex312.htm	Edgar Link	pending
clf-2012930ex321.htm	Edgar Link	pending
clf-2012930ex322.htm	Edgar Link	pending
clf-2012930ex41.htm	Edgar Link	pending
clf-2012930ex95.htm	Edgar Link	pending
clf-2012930x10q.htm	Edgar Link	pending
clf2012930ex102.htm	Edgar Link	pending
clflogo.gif	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
formofcommonsharecerificateb.jpg	Edgar Link	pending
formofcommonsharecertificate.jpg	Edgar Link	pending
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$CLF
CLEVELAND-CLIFFS INC. Stock $clf

2012 Q4 Form 10-Q Financial Statement

#000076406512000007 Filed on October 25, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLF CLEVELAND-CLIFFS INC. Stock $clf

2012 Q4 Form 10-Q Financial Statement

#000076406512000007 Filed on October 25, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLF
CLEVELAND-CLIFFS INC. Stock $clf