$CLF
CLEVELAND-CLIFFS INC. Stock $clf

$clf Overview Financials Valuation SEC Filings Company Website

2013 Form 10-K Financial Statement

#000076406514000018 Filed on February 14, 2014

Income Statement

Concept	2013	2012 Q4	2012 Q3
Revenue	$3.891B	$1.536B	$1.545B
YoY Change	-33.75%	-4.23%	-26.05%
Cost Of Revenue	$2.406B	$1.297B	$1.347B
YoY Change	-48.81%	15.47%	8.07%
Gross Profit	$1.484B	$238.5M	$198.3M
YoY Change	26.64%	-50.32%	-76.48%
Gross Profit Margin	38.15%	15.53%	12.84%
Selling, General & Admin	$163.8M	$79.90M	$63.90M
YoY Change	-42.02%	-4.77%	4.24%
% of Gross Profit	11.03%	33.5%	32.22%
Research & Development		$47.60M	$45.60M
YoY Change		89.64%	71.43%
% of Gross Profit		19.96%	23.0%
Depreciation & Amortization	$593.3M	$143.5M	$132.9M
YoY Change	12.84%	18.99%	11.03%
% of Gross Profit	39.97%	60.17%	67.02%
Operating Expenses	$104.1M	$158.7M	$122.0M
YoY Change	-92.97%	57.91%	369.23%
Operating Profit	$1.380B	$79.80M	$76.30M
YoY Change	-546.99%	-78.98%	-90.66%
Interest Expense	-$186.4M	-$54.80M	$47.20M
YoY Change	-4.61%	49.73%	-4.45%
% of Operating Profit	-13.5%	-68.67%	61.86%
Other Income/Expense, Net	-$189.4M	-$3.500M	-$43.90M
YoY Change	-1.87%	-59.77%	-19.74%
Pretax Income	$840.8M	-$1.028B	$32.40M
YoY Change	0.26%	-435.97%	-95.75%
Income Tax	$237.6M	$491.1M	-$64.00M
% Of Pretax Income	28.26%		-197.53%
Net Earnings	$413.5M	-$1.618B	$85.10M
YoY Change	-145.98%	-972.87%	-85.84%
Net Earnings / Revenue	10.63%	-105.36%	5.51%
Basic Earnings Per Share	$2.40	-$11.36	$0.60
Diluted Earnings Per Share	$2.37	-$11.36	$0.59
COMMON SHARES
Basic Shares Outstanding	151.7M shares	142.5M shares	142.4M shares
Diluted Shares Outstanding	174.3M shares		142.9M shares

Balance Sheet

Concept	2013	2012 Q4	2012 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$336.0M	$195.0M	$36.00M
YoY Change	72.31%	-62.43%	-93.39%
Cash & Equivalents	$336.0M	$195.2M	$36.30M
Short-Term Investments
Other Short-Term Assets	$347.0M	$294.8M	$322.1M
YoY Change	-13.25%	77.27%	45.09%
Inventory	$607.0M	$436.5M	$526.7M
Prepaid Expenses
Receivables	$270.0M	$329.0M	$285.9M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.560B	$1.650B	$1.665B
YoY Change	-5.45%	-13.67%	-12.58%
LONG-TERM ASSETS
Property, Plant & Equipment	$11.15B	$11.21B	$11.03B
YoY Change	-0.48%	7.72%	12.16%
Goodwill		$167.4M	$1.167B
YoY Change		-85.47%
Intangibles		$129.0M	$133.8M
YoY Change		-12.24%
Long-Term Investments		$108.4M	$488.3M
YoY Change		-78.53%	-5.37%
Other Assets	$239.0M	$717.6M	$170.4M
YoY Change	-43.23%	275.31%	-43.58%
Total Long-Term Assets	$11.56B	$11.92B	$13.63B
YoY Change	-3.04%	-5.59%	13.22%
TOTAL ASSETS
Total Short-Term Assets	$1.560B	$1.650B	$1.665B
Total Long-Term Assets	$11.56B	$11.92B	$13.63B
Total Assets	$13.12B	$13.57B	$15.30B
YoY Change	-3.34%	-6.65%	9.69%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$346.0M	$555.5M	$422.1M
YoY Change	-37.77%	52.32%	14.08%
Accrued Expenses	$393.0M	$258.9M	$485.2M
YoY Change	-11.29%	56.91%	34.78%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$21.00M	$94.10M	$369.7M
YoY Change	-77.66%	25.8%	496.29%
Total Short-Term Liabilities	$1.086B	$1.382B	$1.714B
YoY Change	-21.42%	-8.03%	31.97%
LONG-TERM LIABILITIES
Long-Term Debt	$3.023B	$3.961B	$3.514B
YoY Change	-23.68%	9.75%	-9.52%
Other Long-Term Liabilities	$983.0M	$492.6M	$318.6M
YoY Change	-27.93%	9.52%	-70.36%
Total Long-Term Liabilities	$4.006B	$4.453B	$3.833B
YoY Change	-24.77%	9.73%	-22.71%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.086B	$1.382B	$1.714B
Total Long-Term Liabilities	$4.006B	$4.453B	$3.833B
Total Liabilities	$7.052B	$7.814B	$7.608B
YoY Change	-21.14%	4.16%	-7.47%
SHAREHOLDERS EQUITY
Retained Earnings		$3.218B	$4.926B
YoY Change		-27.27%
Common Stock			$18.50M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)		$322.6M	$322.6M
YoY Change		-3.99%
Treasury Stock Shares		6.700M shares	6.704M shares
Shareholders Equity	$6.070B	$4.633B	$6.337B
YoY Change
Total Liabilities & Shareholders Equity	$13.12B	$13.57B	$15.30B
YoY Change	-3.34%	-6.65%	9.69%

Cashflow Statement

Concept	2013	2012 Q4	2012 Q3
OPERATING ACTIVITIES
Net Income	$413.5M	-$1.618B	$85.10M
YoY Change	-145.98%	-972.87%	-85.84%
Depreciation, Depletion And Amortization	$593.3M	$143.5M	$132.9M
YoY Change	12.84%	18.99%	11.03%
Cash From Operating Activities	$1.146B	$239.0M	$308.3M
YoY Change	122.72%	-67.84%	-62.43%
INVESTING ACTIVITIES
Capital Expenditures	$861.6M	-$333.9M	-$276.6M
YoY Change	-23.58%	-16.9%	18.0%
Acquisitions	$0.00
YoY Change
Other Investing Activities	-$50.30M	$156.8M	$12.80M
YoY Change	283.97%	880.0%	-65.03%
Cash From Investing Activities	-$811.3M	-$177.1M	-$263.8M
YoY Change	-15.65%	-54.1%	33.37%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	-$285.3M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$171.9M	92.40M	-164.4M
YoY Change	-243.73%	-123.6%	-43.85%
NET CHANGE
Cash From Operating Activities	$1.146B	239.0M	308.3M
Cash From Investing Activities	-$811.3M	-177.1M	-263.8M
Cash From Financing Activities	-$171.9M	92.40M	-164.4M
Net Change In Cash	$162.7M	154.3M	-119.9M
YoY Change	-149.65%	-551.17%	-136.32%
FREE CASH FLOW
Cash From Operating Activities	$1.146B	$239.0M	$308.3M
Capital Expenditures	$861.6M	-$333.9M	-$276.6M
Free Cash Flow	$284.3M	$572.9M	$584.9M
YoY Change	-146.38%	-49.96%	-44.56%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	555500000	USD
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	345500000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	270000000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	329000000	USD
CY2013Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	8400000	USD
CY2012Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	15700000	USD
CY2013Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	61700000	USD
CY2012Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	28300000	USD
CY2013Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	206400000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	258900000	USD
CY2013Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	57300000	USD
CY2012Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	48100000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2417500000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1837400000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2600000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	33600000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2100000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	6200000	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	10700000	USD
CY2013Q2	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	6300000	USD
CY2013Q1	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	4700000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	1200000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	2700000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	8700000	USD
CY2013Q2	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-42700000	USD
CY2013Q1	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	1700000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-20900000	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-14400000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-408900000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-382700000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-305100000	USD
CY2013Q2	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-370800000	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-365100000	USD
CY2013Q1	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-377400000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-204900000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	316300000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	312500000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	314700000	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	190400000	USD
CY2013Q1	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	319600000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	106700000	USD
CY2013Q2	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	167600000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-112900000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-55600000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-92600000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	45900000	USD
CY2013Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-239600000	USD
CY2013Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-51400000	USD
CY2013Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-178400000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2329500000	USD
CY2012Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1774700000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21100000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20600000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15900000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	8100000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	8100000	USD
CY2013Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	12900000	shares
CY2013Q4	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	25200000	shares
CY2011	us-gaap	Asset Impairment Charges AssetImpairmentCharges	27800000	USD
CY2012	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1049900000	USD
CY2013	us-gaap	Asset Impairment Charges AssetImpairmentCharges	250800000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	231100000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	194900000	USD
CY2013Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	290600000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	-17600000	USD
CY2013	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	-18100000	USD
CY2012	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	300000	USD
CY2013	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	-3400000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	-100000	USD
CY2013	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled		USD
CY2013	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	44800000	USD
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	18200000	USD
CY2013Q4	us-gaap	Assets Assets	13121900000	USD
CY2012Q4	us-gaap	Assets Assets	13574900000	USD
CY2011Q4	us-gaap	Assets Assets	14541700000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	1650000000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	1560000000	USD
CY2013Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	165600000	USD
CY2012Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	205600000	USD
CY2012Q4	us-gaap	Assets Fair Value Disclosure Nonrecurring AssetsFairValueDisclosureNonrecurring	72500000	USD
CY2013Q4	us-gaap	Assets Fair Value Disclosure Nonrecurring AssetsFairValueDisclosureNonrecurring	47900000	USD
CY2011	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	-25400000	USD
CY2013	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2012	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-60100000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-152500000	USD
CY2013	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	109300000	USD
CY2011	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	-38700000	USD
CY2012	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	-55300000	USD
CY2013	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
CY2013Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	404000000	USD
CY2012Q4	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	471700000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	263900000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	64200000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	19600000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	27400000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	34800000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	85700000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	32200000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	48000000	USD
CY2013Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	215900000	USD
CY2012Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	184500000	USD
CY2013Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	198500000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	335500000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	195200000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	85000000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	100000000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	140300000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1045100000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-326400000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	3029242	shares
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.84
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.60
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.16
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.125
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.125
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	159546224	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	149195469	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	153126291	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	142495902	shares
CY2013Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	19800000	USD
CY2012Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	18500000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-17600000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	30500000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	7600000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	335000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1656500000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-1082000000	USD
CY2012	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	4700600000	USD
CY2011	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3953000000	USD
CY2013	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	4542100000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	246800000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	101300000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	71100000	USD
CY2013	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	87900000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	224700000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	50200000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	193200000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	474300000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	128900000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4000000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2800000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7600000	USD
CY2013Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	4814800000	USD
CY2012Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	5497100000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	221200000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	23300000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	23800000	USD
CY2013	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-164400000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-95600000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-95100000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-138100000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	127000000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-66600000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3000000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1400000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4700000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1574600000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1606100000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	45400000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	16400000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1006600000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-1074500000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	747700000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	710500000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	110700000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	105400000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	524400000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	396400000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	2100000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	3500000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	185000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	157900000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	56000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	49200000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	299200000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	274900000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	5800000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	5800000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	88400000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	161200000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	87700000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	58000000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	48200000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	61700000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	140900000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	138300000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	858400000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	864100000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1785000000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1754300000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	1600000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	0	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	24600000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	33500000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1146500000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1108100000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1350500000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1400800000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	19600000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	12800000	USD
CY2012Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	403800000	USD
CY2013Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	197500000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	1204700000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	1091400000	USD
CY2012	us-gaap	Defined Benefit Plan Actual Return On Plan Assets Sold During Period DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod	-800000	USD
CY2013	us-gaap	Defined Benefit Plan Actual Return On Plan Assets Sold During Period DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod	-25100000	USD
CY2012	us-gaap	Defined Benefit Plan Actual Return On Plan Assets Still Held DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld	21800000	USD
CY2013	us-gaap	Defined Benefit Plan Actual Return On Plan Assets Still Held DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld	41000000	USD
CY2012	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Plan Assets DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets	14400000	USD
CY2013	us-gaap	Defined Benefit Plan Business Combinations And Acquisitions Plan Assets DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets	145000000	USD
CY2013	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	25500000	USD
CY2012	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	39000000	USD
CY2012	us-gaap	Defined Benefit Plan Divestitures Plan Assets DefinedBenefitPlanDivestituresPlanAssets	-27100000	USD
CY2013	us-gaap	Defined Benefit Plan Divestitures Plan Assets DefinedBenefitPlanDivestituresPlanAssets	-172800000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	-31300000	USD
CY2012	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	-4100000	USD
CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	38200000	USD
CY2013	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	5400000	USD
CY2012Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	200500000	USD
CY2011Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	192200000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	188600000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Funded Percentage DefinedBenefitPlanFundedPercentage	0.70
CY2013	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.0500
CY2012	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.0500
CY2013	us-gaap	Defined Benefit Plans Estimated Future Employer Contributions In Next Fiscal Year DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear	7900000	USD
CY2012	us-gaap	Depletion Depletion	209800000	USD
CY2011	us-gaap	Depletion Depletion	159700000	USD
CY2013	us-gaap	Depletion Depletion	206500000	USD
CY2011	us-gaap	Depreciation Depreciation	237800000	USD
CY2012	us-gaap	Depreciation Depreciation	293500000	USD
CY2013	us-gaap	Depreciation Depreciation	366900000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	593300000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	426900000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	525800000	USD
CY2013Q4	us-gaap	Derivative Assets DerivativeAssets	58900000	USD
CY2012Q4	us-gaap	Derivative Assets DerivativeAssets	62400000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	59200000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	78600000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	13200000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	39300000	USD
CY2013	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-22100000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	18100000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	3300000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	25600000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	1800000	USD
CY2013	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-51700000	USD
CY2012	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	163200000	USD
CY2011	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	1090000000	USD
CY2013	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	141400000	USD
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	12400000	USD
CY2012Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	11300000	USD
CY2013	us-gaap	Dividends Common Stock DividendsCommonStock	91900000	USD
CY2012	us-gaap	Dividends Common Stock DividendsCommonStock	307200000	USD
CY2011	us-gaap	Dividends Common Stock DividendsCommonStock	118900000	USD
CY2012	us-gaap	Dividends Preferred Stock DividendsPreferredStock	0	USD
CY2011	us-gaap	Dividends Preferred Stock DividendsPreferredStock	0	USD
CY2013	us-gaap	Dividends Preferred Stock DividendsPreferredStock	48700000	USD
CY2012Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	149800000	USD
CY2013Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	132000000	USD
CY2012Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	20200000	USD
CY2013Q4	us-gaap	Due To Related Parties Current DueToRelatedPartiesCurrent	25100000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.55
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.40
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-6.32
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.64
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-11.36
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.81
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.87
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-6.32
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	11.48
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.37
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.59
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.63
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-11.36
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.81
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.66
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	1300000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-4600000	USD
CY2013	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-22400000	USD
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.35
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.35
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.35
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-1.265
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.023
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.149
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.13
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.02
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.021
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	0.042
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses	-0.403
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.006
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.009
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.004
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.011
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-11400000
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.036
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-18000000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.008
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-5700000
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.011
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.015
CY2013Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	129000000	USD
CY2012Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	135600000	USD
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	18200000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M24D
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	7200000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	7400000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5600000	USD
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	108400000	USD
CY2013Q4	us-gaap	Equity Method Investments EquityMethodInvestments	30800000	USD
CY2011	us-gaap	Exploration Expense Mining ExplorationExpenseMining	80500000	USD
CY2012	us-gaap	Exploration Expense Mining ExplorationExpenseMining	142800000	USD
CY2013	us-gaap	Exploration Expense Mining ExplorationExpenseMining	59000000	USD
CY2012	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	174900000	USD
CY2013	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	152300000	USD
CY2012	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-11300000	USD
CY2013	us-gaap	Fair Value Liabilities Measured On Recurring Basis Change In Unrealized Gain Loss FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-10300000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-152300000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-174900000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	155800000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	270400000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	62400000	USD
CY2013Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	58900000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	157900000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-10300000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-11300000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	19500000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	11300000	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-11300000	USD
CY2013Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-10300000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	-19500000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	89100000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	67500000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	9300000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	7500000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	6500000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	7200000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	7700000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	184500000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	196500000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	129000000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	95400000	USD
CY2013Q4	us-gaap	Foreign Currency Contract Asset Fair Value Disclosure ForeignCurrencyContractAssetFairValueDisclosure	300000	USD
CY2012Q4	us-gaap	Foreign Currency Contract Asset Fair Value Disclosure ForeignCurrencyContractAssetFairValueDisclosure	16200000	USD
CY2013Q4	us-gaap	Foreign Currency Contracts Liability Fair Value Disclosure ForeignCurrencyContractsLiabilityFairValueDisclosure	26900000	USD
CY2012Q4	us-gaap	Foreign Currency Contracts Liability Fair Value Disclosure ForeignCurrencyContractsLiabilityFairValueDisclosure	1900000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Before Tax ForeignCurrencyTransactionGainBeforeTax	62600000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Before Tax ForeignCurrencyTransactionGainBeforeTax	-62300000	USD
CY2013	us-gaap	Foreign Currency Transaction Gain Before Tax ForeignCurrencyTransactionGainBeforeTax	2600000	USD
CY2012	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	-100000	USD
CY2013	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	-3500000	USD
CY2011	us-gaap	Gain Loss On Foreign Currency Derivative Instruments Not Designated As Hedging Instruments GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments	101900000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	74500000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	167400000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	1152100000	USD
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	13800000	USD
CY2013	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	USD
CY2012Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	-1027800000	USD
CY2013Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	-1108700000	USD
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1000000000	USD
CY2013	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	80900000	USD
CY2013	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	-12000000	USD
CY2012	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	1500000	USD
CY2011	us-gaap	Gross Profit GrossProfit	2610900000	USD
CY2012	us-gaap	Gross Profit GrossProfit	1172100000	USD
CY2013	us-gaap	Gross Profit GrossProfit	1149300000	USD
CY2012Q4	us-gaap	Gross Profit GrossProfit	238500000	USD
CY2012Q3	us-gaap	Gross Profit GrossProfit	198300000	USD
CY2012Q1	us-gaap	Gross Profit GrossProfit	291800000	USD
CY2012Q2	us-gaap	Gross Profit GrossProfit	443500000	USD
CY2013Q3	us-gaap	Gross Profit GrossProfit	348700000	USD
CY2013Q1	us-gaap	Gross Profit GrossProfit	237900000	USD
CY2013Q2	us-gaap	Gross Profit GrossProfit	268200000	USD
CY2013Q4	us-gaap	Gross Profit GrossProfit	294500000	USD
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1599000000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	255700000	USD
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-935300000	USD
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	411500000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-1649100000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	87800000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	370300000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	43300000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	146000000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	107000000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	115200000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	837700000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	838600000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1506500000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-1340400000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-348400000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	684000000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-501800000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	2190500000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	489300000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	1792500000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	359800000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1162500000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-6.57
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.39
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	11.41
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-11.58
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.62
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.60
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.79
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.66
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.87
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.67
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.20
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.36
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-6.57
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	11.34
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.61
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.79
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.59
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-11.58
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.82
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.20
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.65
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.66
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	20100000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	35900000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2000000	USD
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	30800000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-2700000	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2300000	USD
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	5500000	USD
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2000000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.14
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.25
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.02
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.22
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.04
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.14
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.25
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.22
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.02
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.04
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-74400000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	9700000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-404800000	USD
CY2011	us-gaap	Income Tax Effects Allocated Directly To Equity Equity Transactions IncomeTaxEffectsAllocatedDirectlyToEquityEquityTransactions	-4600000	USD
CY2012	us-gaap	Income Tax Effects Allocated Directly To Equity Equity Transactions IncomeTaxEffectsAllocatedDirectlyToEquityEquityTransactions	-12800000	USD
CY2013	us-gaap	Income Tax Effects Allocated Directly To Equity Equity Transactions IncomeTaxEffectsAllocatedDirectlyToEquityEquityTransactions	3500000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	55100000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	255900000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	407700000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	634500000	USD
CY2013	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	73000000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	49500000	USD
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-44000000	USD
CY2013	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-10200000	USD
CY2012	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	65200000	USD
CY2013	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	171300000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-175600000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	766700000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	19700000	USD
CY2012	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	202200000	USD
CY2011	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2013	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	20500000	USD
CY2013	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2900000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1600000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7300000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7500000	USD
CY2013	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5600000	USD
CY2013	us-gaap	Income Tax Refunds Discontinued Operations IncomeTaxRefundsDiscontinuedOperations	-2000000	USD
CY2012	us-gaap	Income Tax Refunds Discontinued Operations IncomeTaxRefundsDiscontinuedOperations	10400000	USD
CY2011	us-gaap	Income Tax Refunds Discontinued Operations IncomeTaxRefundsDiscontinuedOperations	3200000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	443200000	USD
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	153300000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	275300000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-366100000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	324600000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-109800000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable And Other Operating Assets IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets	74800000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable And Other Operating Assets IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets	-138800000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable And Other Operating Assets IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets	-81400000	USD
CY2012	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-39900000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	74500000	USD
CY2013	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-30800000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	778000	shares
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	458000	shares
CY2011	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-206200000	USD
CY2013	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-179100000	USD
CY2012	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-195600000	USD
CY2012	us-gaap	Interest Paid InterestPaid	207500000	USD
CY2011	us-gaap	Interest Paid InterestPaid	175100000	USD
CY2013	us-gaap	Interest Paid InterestPaid	174400000	USD
CY2013Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	256500000	USD
CY2012Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	283200000	USD
CY2013Q4	us-gaap	Inventory Net InventoryNet	391400000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	436500000	USD
CY2013Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	63400000	USD
CY2012Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	29800000	USD
CY2013Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	134900000	USD
CY2012Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	153300000	USD
CY2013Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	21400000	USD
CY2012Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	27000000	USD
CY2013Q4	us-gaap	Land Land	46300000	USD
CY2012Q4	us-gaap	Land Land	46400000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	29500000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	26300000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	25800000	USD
CY2012Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	96900000	USD
CY2013Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	48000000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	6237600000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	7814000000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13574900000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13121900000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1381500000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1085500000	USD
CY2013Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	39300000	USD
CY2012Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	13200000	USD
CY2013Q4	us-gaap	Loans Receivable Basis Spread On Variable Rate LoansReceivableBasisSpreadOnVariableRate	0.035
CY2013Q4	us-gaap	Long Term Debt LongTermDebt	3043500000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	4054800000	USD
CY2013Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	20900000	USD
CY2012Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	94100000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2448100000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	20900000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	524600000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	23600000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	22700000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	21800000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3022600000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3960700000	USD
CY2012Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	252800000	USD
CY2013Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	309700000	USD
CY2013Q4	us-gaap	Mineral Properties Accumulated Depletion MineralPropertiesAccumulatedDepletion	942600000	USD
CY2012Q4	us-gaap	Mineral Properties Accumulated Depletion MineralPropertiesAccumulatedDepletion	727000000	USD
CY2013Q4	us-gaap	Mineral Properties Gross MineralPropertiesGross	7773300000	USD
CY2012Q4	us-gaap	Mineral Properties Gross MineralPropertiesGross	7874400000	USD
CY2012Q4	us-gaap	Mineral Properties Net MineralPropertiesNet	7147400000	USD
CY2013Q4	us-gaap	Mineral Properties Net MineralPropertiesNet	6830700000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	1128200000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	814800000	USD
CY2013	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-102100000	USD
CY2012	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	2100000	USD
CY2011	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-4500000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	119600000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-171900000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1975100000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-811300000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5304400000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-961800000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	514500000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2288800000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1145900000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	-899400000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	1619100000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	413500000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	85100000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	-1618300000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	258000000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	375800000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	43300000	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	146000000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	117200000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	107000000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-51700000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-227200000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	193500000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-899400000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1619100000	USD
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	364800000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-106300000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-193000000	USD
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-181700000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	314100000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	478300000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	1480900000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	671000000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	-308800000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	2296800000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	69900000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	20000000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	6700000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	7300000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	8100000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	13100000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	14700000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	294800000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	236400000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	717600000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	408500000	USD
CY2013Q4	us-gaap	Other Commitment OtherCommitment	14300000000	USD
CY2012Q4	us-gaap	Other Commitment OtherCommitment	14600000000	USD
CY2013Q4	us-gaap	Other Commitment Due After Fifth Year OtherCommitmentDueAfterFifthYear	9900000000	USD
CY2013Q4	us-gaap	Other Commitment Due In Fifth Year OtherCommitmentDueInFifthYear	1000000000	USD
CY2013Q4	us-gaap	Other Commitment Due In Fourth Year OtherCommitmentDueInFourthYear	600000000	USD
CY2013Q4	us-gaap	Other Commitment Due In Next Twelve Months OtherCommitmentDueInNextTwelveMonths	1200000000	USD
CY2013Q4	us-gaap	Other Commitment Due In Second Year OtherCommitmentDueInSecondYear	900000000	USD
CY2013Q4	us-gaap	Other Commitment Due In Third Year OtherCommitmentDueInThirdYear	700000000	USD
CY2013	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-179200000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	18200000	USD
CY2011	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-2200000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-500000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	3100000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-31000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	7500000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-1500000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-29600000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-208600000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2200000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	3800000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-156100000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	44600000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-26800000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	356200000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1480600000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-862400000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	121400000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-208300000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-33800000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	60200000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-100000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-13800000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-22100000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	3300000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	18100000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-77900000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	89600000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	18100000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-51700000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	25600000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1800000	USD
CY2013Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	203000000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	195100000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	379300000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	492600000	USD
CY2011	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	18700000	USD
CY2012	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	45000000	USD
CY2013	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	6900000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2700000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2000000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	900000	USD
CY2011	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	67900000	USD
CY2012	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-5700000	USD
CY2013	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	63100000	USD
CY2013Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	96500000	USD
CY2012Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	214500000	USD
CY2013	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	8200000	USD
CY2012	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	2400000	USD
CY2011	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-93100000	USD
CY2013	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	0	USD
CY2012	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	0	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-13100000	USD
CY2013	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-50300000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-31700000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	289800000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2013	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4300000	USD
CY2011	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	54800000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	307200000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	118900000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	91900000	USD
CY2012	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
CY2011	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
CY2013	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	35700000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	4423500000	USD
CY2013	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2013	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2011	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	125000000	USD
CY2012	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	861600000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	880700000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1127500000	USD
CY2012Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	618300000	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	294000000	USD
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0
CY2013	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	23300000	USD
CY2011	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	0	USD
CY2012	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	95400000	USD
CY2011	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2012	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	152600000	USD
CY2013	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	285300000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	853700000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	0	USD
CY2013	us-gaap	Proceeds From Issuance Of Convertible Preferred Stock ProceedsFromIssuanceOfConvertiblePreferredStock	709400000	USD
CY2013	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	164800000	USD
CY2012	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2012	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	1250000000	USD
CY2013	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2013	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	998100000	USD
CY2012	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	497000000	USD
CY2013	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	670500000	USD
CY2012	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1012000000	USD
CY2011	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	1000000000	USD
CY2011	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	337200000	USD
CY2013	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	-5200000	USD
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	-104400000	USD
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	-6300000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-48000000	USD
CY2013	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-55000000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-36500000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	361800000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	-1126600000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	1812600000	USD
CY2012	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	1335300000	USD
CY2013	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	752300000	USD
CY2011	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	960900000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	13570900000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	13044700000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11153400000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11207300000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10404100000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	9000000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	5900000	USD
CY2013	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	USD
CY2012	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2013	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2012	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	687000000	USD
CY2011	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	1000000000	USD
CY2013	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	995500000	USD
CY2013	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	847100000	USD
CY2011	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	278000000	USD
CY2012	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	124800000	USD
CY2012	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	325000000	USD
CY2011	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	USD
CY2013	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3407300000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3217700000	USD
CY2012	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1660800000	USD
CY2013	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1664800000	USD
CY2011	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	2192400000	USD
CY2013	us-gaap	Revenue Recognition Deferred Revenue RevenueRecognitionDeferredRevenue	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;font-style:italic;font-weight:bold;">Deferred Revenue</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">The terms of one of our U.S. Iron Ore pellet supply agreements required supplemental payments to be paid by the customer during the period 2009 through 2012, with the option to defer a portion of the 2009 monthly amount in exchange for interest payments until the deferred amount was repaid in 2013. Installment amounts received under this arrangement in excess of sales are classified as deferred revenue in the </font><font style="font-family:Arial;font-size:11pt;">Statements of Consolidated Financial Position</font><font style="font-family:Arial;font-size:11pt;"> upon receipt of payment. Revenue is recognized over the life of the supply agreement, which extends until 2022, in equal annual installments. As of </font><font style="font-family:Arial;font-size:11pt;">December 31, 2013</font><font style="font-family:Arial;font-size:11pt;"> and </font><font style="font-family:Arial;font-size:11pt;">2012</font><font style="font-family:Arial;font-size:11pt;">, installment amounts received in excess of sales totaled </font><font style="font-family:Arial;font-size:11pt;">$115.6 million</font><font style="font-family:Arial;font-size:11pt;"> and </font><font style="font-family:Arial;font-size:11pt;">$128.4 million</font><font style="font-family:Arial;font-size:11pt;">, respectively. As of </font><font style="font-family:Arial;font-size:11pt;">December 31, 2013</font><font style="font-family:Arial;font-size:11pt;">, deferred revenue of </font><font style="font-family:Arial;font-size:11pt;">$12.8 million</font><font style="font-family:Arial;font-size:11pt;"> was recorded in </font><font style="font-family:Arial;font-size:11pt;font-style:italic;">Other current liabilities</font><font style="font-family:Arial;font-size:11pt;"> and </font><font style="font-family:Arial;font-size:11pt;">$102.8 million</font><font style="font-family:Arial;font-size:11pt;"> was recorded as long term in </font><font style="font-family:Arial;font-size:11pt;font-style:italic;">Other liabilities</font><font style="font-family:Arial;font-size:11pt;"> in the </font><font style="font-family:Arial;font-size:11pt;">Statements of Consolidated Financial Position</font><font style="font-family:Arial;font-size:11pt;">.</font><font style="font-family:Arial;font-size:11pt;font-style:italic;"> </font><font style="font-family:Arial;font-size:11pt;">As of December 31, 2012, deferred revenue of </font><font style="font-family:Arial;font-size:11pt;">$12.8 million</font><font style="font-family:Arial;font-size:11pt;"> was recorded in </font><font style="font-family:Arial;font-size:11pt;font-style:italic;">Other current liabilities</font><font style="font-family:Arial;font-size:11pt;"> and </font><font style="font-family:Arial;font-size:11pt;">$115.6 million</font><font style="font-family:Arial;font-size:11pt;"> was recorded as long term in </font><font style="font-family:Arial;font-size:11pt;font-style:italic;">Other liabilities</font><font style="font-family:Arial;font-size:11pt;"> in the </font><font style="font-family:Arial;font-size:11pt;">Statements of Consolidated Financial Position</font><font style="font-family:Arial;font-size:11pt;">. </font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">In 2013, due to the payment terms and the timing of cash receipts near year-end, the Company ended up with cash receipts in excess of shipments on one customer contract. The shipments were completed in early 2014. In </font><font style="font-family:Arial;font-size:11pt;">2012</font><font style="font-family:Arial;font-size:11pt;">, customer purchases were made in order to secure the 2012 pricing on shipments to occur in early 2013 and at the request of the customers the ore was not shipped, therefore the inventory remained at our facilities. We considered whether revenue should be recognized on these sales under the “bill and hold” guidance provided by the SEC Staff; however, based upon the assessment performed, revenue recognition on these transactions totaling </font><font style="font-family:Arial;font-size:11pt;">$13.5 million</font><font style="font-family:Arial;font-size:11pt;"> and </font><font style="font-family:Arial;font-size:11pt;">$17.1 million</font><font style="font-family:Arial;font-size:11pt;">, respectively, was deferred on the </font><font style="font-family:Arial;font-size:11pt;">December 31, 2013</font><font style="font-family:Arial;font-size:11pt;"> and </font><font style="font-family:Arial;font-size:11pt;">December 31, 2012</font><font style="font-family:Arial;font-size:11pt;"> </font><font style="font-family:Arial;font-size:11pt;">Statements of Consolidated Financial Position</font><font style="font-family:Arial;font-size:11pt;">. </font></div></div>
CY2011	us-gaap	Revenues Revenues	6563900000	USD
CY2013	us-gaap	Revenues Revenues	5691400000	USD
CY2012	us-gaap	Revenues Revenues	5872700000	USD
CY2012Q1	us-gaap	Revenues Revenues	1212400000	USD
CY2012Q3	us-gaap	Revenues Revenues	1544900000	USD
CY2012Q4	us-gaap	Revenues Revenues	1535900000	USD
CY2012Q2	us-gaap	Revenues Revenues	1579500000	USD
CY2013Q4	us-gaap	Revenues Revenues	1515800000	USD
CY2013Q1	us-gaap	Revenues Revenues	1140500000	USD
CY2013Q3	us-gaap	Revenues Revenues	1546600000	USD
CY2013Q2	us-gaap	Revenues Revenues	1488500000	USD
CY2011	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	6321300000	USD
CY2012	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	5520900000	USD
CY2013	us-gaap	Sales Revenue Goods Net SalesRevenueGoodsNet	5346600000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	15700000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	13300000	USD
CY2011	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	289800000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	4632700000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	6069500000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5760900000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	282500000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	248300000	USD
CY2013	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	231600000	USD
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	336343	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	36.42
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1211251	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	19.84
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1169151	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1633866	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	40.20
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	61.81
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	410193	shares
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	51.24
CY2012	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	-8000000	USD
CY2011	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	1075400000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	853700000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	14200000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6884300000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7039700000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3838700000	USD
CY2013Q4	us-gaap	Supplies Supplies	216000000	USD
CY2012Q4	us-gaap	Supplies Supplies	289100000	USD
CY2012	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	-14800000	USD
CY2013	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	19600000	USD
CY2011	us-gaap	Tax Adjustments Settlements And Unusual Provisions TaxAdjustmentsSettlementsAndUnusualProvisions	17700000	USD
CY2012Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	65900000	USD
CY2013Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	61700000	USD
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	6419133	shares
CY2012Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	6699567	shares
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	305500000	USD
CY2012Q4	us-gaap	Treasury Stock Value TreasuryStockValue	322600000	USD
CY2013Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	1200000000	USD
CY2012Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	800000000	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	74400000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	55500000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	102100000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	79800000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-60400000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-3500000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	29500000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	11100000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5300000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	42100000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2700000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	13600000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-45800000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;padding-bottom:12px;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:Arial;font-size:11pt;">The preparation of financial statements, in conformity with GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions related to mineral reserves future realizable cash flow; environmental, reclamation and closure obligations; valuation of goodwill, long-lived assets and investments; valuation of inventory; valuation of post-employment, post-retirement and other employee benefit liabilities; valuation of deferred tax assets; reserves for contingencies and litigation; and the fair value of derivative instruments. Actual results could differ from estimates. On an ongoing basis, management reviews estimates. Changes in facts and circumstances may alter such estimates and affect results of operations and financial position in future periods.</font></div></div>
CY2013	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	5700000	USD
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141012000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	142351000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	174323000	shares
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	151726000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	142351000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	140234000	shares
CY2011Q4	clf	Accumulated Other Comprehensive Income Loss Before Taxes AccumulatedOtherComprehensiveIncomeLossBeforeTaxes	-299200000	USD
CY2012Q4	clf	Accumulated Other Comprehensive Income Loss Before Taxes AccumulatedOtherComprehensiveIncomeLossBeforeTaxes	-244700000	USD
CY2013Q4	clf	Accumulated Other Comprehensive Income Loss Before Taxes AccumulatedOtherComprehensiveIncomeLossBeforeTaxes	-213300000	USD
CY2011Q4	clf	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-206600000	USD
CY2012Q4	clf	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-189100000	USD
CY2013Q4	clf	Accumulated Other Comprehensive Income Loss Tax AccumulatedOtherComprehensiveIncomeLossTax	-100400000	USD
CY2013Q4	clf	Below Market Sales Contracts Life BelowMarketSalesContractsLife	P3Y
CY2013	clf	Capital Expenditures Incurred But Not Yet Paid And Capital Lease Obligations Incurred CapitalExpendituresIncurredButNotYetPaidAndCapitalLeaseObligationsIncurred	-109300000	USD
CY2011	clf	Capital Expenditures Incurred But Not Yet Paid And Capital Lease Obligations Incurred CapitalExpendituresIncurredButNotYetPaidAndCapitalLeaseObligationsIncurred	98800000	USD
CY2012	clf	Capital Expenditures Incurred But Not Yet Paid And Capital Lease Obligations Incurred CapitalExpendituresIncurredButNotYetPaidAndCapitalLeaseObligationsIncurred	207800000	USD
CY2013	clf	Derivative Policy Percentage Of Amount Permitted To Be Hedged DerivativePolicyPercentageOfAmountPermittedToBeHedged	0.75
CY2012Q4	clf	Cash And Cash Equivalents At Carrying Value Including Assets Held For Sale CashAndCashEquivalentsAtCarryingValueIncludingAssetsHeldForSale	195200000	USD
CY2011Q4	clf	Cash And Cash Equivalents At Carrying Value Including Assets Held For Sale CashAndCashEquivalentsAtCarryingValueIncludingAssetsHeldForSale	521600000	USD
CY2013Q4	clf	Cash And Cash Equivalents At Carrying Value Including Assets Held For Sale CashAndCashEquivalentsAtCarryingValueIncludingAssetsHeldForSale	335500000	USD
CY2010Q4	clf	Cash And Cash Equivalents At Carrying Value Including Assets Held For Sale CashAndCashEquivalentsAtCarryingValueIncludingAssetsHeldForSale	1566700000	USD
CY2013Q4	clf	Cumulative Mandatory Convertible CumulativeMandatoryConvertible	0.07
CY2012Q4	clf	Deferred Tax Assets Development Costs DeferredTaxAssetsDevelopmentCosts	14100000	USD
CY2013Q4	clf	Deferred Tax Assets Development Costs DeferredTaxAssetsDevelopmentCosts	0	USD
CY2013Q4	clf	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	31900000	USD
CY2012Q4	clf	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	31000000	USD
CY2013Q4	clf	Deferred Tax Assets Mmrt Starting Base Allowance DeferredTaxAssetsMmrtStartingBaseAllowance	300300000	USD
CY2012Q4	clf	Deferred Tax Assets Mmrt Starting Base Allowance DeferredTaxAssetsMmrtStartingBaseAllowance	357100000	USD
CY2013Q4	clf	Deferred Tax Liabilities Income Tax Uncertainties DeferredTaxLiabilitiesIncomeTaxUncertainties	48500000	USD
CY2012Q4	clf	Deferred Tax Liabilities Income Tax Uncertainties DeferredTaxLiabilitiesIncomeTaxUncertainties	48500000	USD
CY2012Q4	clf	Deferred Tax Liabilities Investment In Ventures DeferredTaxLiabilitiesInvestmentInVentures	207600000	USD
CY2013Q4	clf	Deferred Tax Liabilities Investment In Ventures DeferredTaxLiabilitiesInvestmentInVentures	196400000	USD
CY2012Q4	clf	Deferred Tax Liabilities Other Assets DeferredTaxLiabilitiesOtherAssets	101900000	USD
CY2013Q4	clf	Deferred Tax Liabilities Other Assets DeferredTaxLiabilitiesOtherAssets	93000000	USD
CY2013	clf	Defined Benefit Plan Expected Net Periodic Benefit Cost DefinedBenefitPlanExpectedNetPeriodicBenefitCost	36300000	USD
CY2013	clf	Depositary Share Interest In Share Of7 Series Mandatory Convertible Preferred Stock Class A DepositaryShareInterestInShareOf7SeriesMandatoryConvertiblePreferredStockClassA	0.025
CY2013	clf	Depositary Shares Dividends Per Share Declared DepositarySharesDividendsPerShareDeclared	1.66
CY2012	clf	Depositary Shares Dividends Per Share Declared DepositarySharesDividendsPerShareDeclared	0.00
CY2011	clf	Depositary Shares Dividends Per Share Declared DepositarySharesDividendsPerShareDeclared	0.00
CY2013	clf	Derivative Policy Minimum Percentage Of Amount Permitted To Be Hedged For Derivatives With Periods Of Up To Fifteen Months DerivativePolicyMinimumPercentageOfAmountPermittedToBeHedgedForDerivativesWithPeriodsOfUpToFifteenMonths	0.1
CY2013	clf	Derivative Policy Minimum Percentage Of Amount Permitted To Be Hedged For Derivatives With Periods Of Up To Twelve Months DerivativePolicyMinimumPercentageOfAmountPermittedToBeHedgedForDerivativesWithPeriodsOfUpToTwelveMonths	0.4
CY2012Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Current EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrent	12300000	USD
CY2013Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Current EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrent	11300000	USD
CY2013Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Current And Noncurrent EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrentAndNoncurrent	321000000	USD
CY2012Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Current And Noncurrent EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityCurrentAndNoncurrent	265100000	USD
CY2012Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Noncurrent EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityNoncurrent	252800000	USD
CY2013Q4	clf	Environmental Loss Contingency And Mine Reclamation And Closing Liability Noncurrent EnvironmentalLossContingencyAndMineReclamationAndClosingLiabilityNoncurrent	309700000	USD
CY2011	clf	Foreign Currency Transaction Gain Before Tax Percent ForeignCurrencyTransactionGainBeforeTaxPercent	-0.029
CY2012	clf	Foreign Currency Transaction Gain Before Tax Percent ForeignCurrencyTransactionGainBeforeTaxPercent	-0.124
CY2013	clf	Foreign Currency Transaction Gain Before Tax Percent ForeignCurrencyTransactionGainBeforeTaxPercent	-0.005
CY2013	clf	Future Below Market Sales Contracts Revenue Within Five Years FutureBelowMarketSalesContractsRevenueWithinFiveYears	69200000	USD
CY2013	clf	Future Below Market Sales Contracts Revenue Year Five FutureBelowMarketSalesContractsRevenueYearFive	0	USD
CY2013	clf	Future Below Market Sales Contracts Revenue Year Four FutureBelowMarketSalesContractsRevenueYearFour	200000	USD
CY2013	clf	Future Below Market Sales Contracts Revenue Year One FutureBelowMarketSalesContractsRevenueYearOne	23000000	USD
CY2013	clf	Future Below Market Sales Contracts Revenue Year Three FutureBelowMarketSalesContractsRevenueYearThree	23000000	USD
CY2013	clf	Future Below Market Sales Contracts Revenue Year Two FutureBelowMarketSalesContractsRevenueYearTwo	23000000	USD
CY2011	clf	Impact Of Tax Law Change ImpactOfTaxLawChange	0	USD
CY2013	clf	Impact Of Tax Law Change ImpactOfTaxLawChange	0	USD
CY2012	clf	Impact Of Tax Law Change ImpactOfTaxLawChange	-357100000	USD
CY2013	clf	Impact Of Tax Law Change Percent ImpactOfTaxLawChangePercent	0
CY2012	clf	Impact Of Tax Law Change Percent ImpactOfTaxLawChangePercent	0.712
CY2011	clf	Impact Of Tax Law Change Percent ImpactOfTaxLawChangePercent	0
CY2012	clf	Impairment Charges ImpairmentCharges	1415300000	USD
CY2013	clf	Impairment Charges ImpairmentCharges	318400000	USD
CY2011	clf	Income Not Subject To Tax IncomeNotSubjectToTax	-67500000	USD
CY2013	clf	Income Not Subject To Tax IncomeNotSubjectToTax	-106600000	USD
CY2012	clf	Income Not Subject To Tax IncomeNotSubjectToTax	-108000000	USD
CY2011	clf	Income Tax Effects Allocated Directly To Equity Equity Transactions Acquisitionof Noncontrolling Interest IncomeTaxEffectsAllocatedDirectlyToEquityEquityTransactionsAcquisitionofNoncontrollingInterest	0	USD
CY2013	clf	Income Tax Effects Allocated Directly To Equity Equity Transactions Acquisitionof Noncontrolling Interest IncomeTaxEffectsAllocatedDirectlyToEquityEquityTransactionsAcquisitionofNoncontrollingInterest	102100000	USD
CY2012	clf	Income Tax Effects Allocated Directly To Equity Equity Transactions Acquisitionof Noncontrolling Interest IncomeTaxEffectsAllocatedDirectlyToEquityEquityTransactionsAcquisitionofNoncontrollingInterest	0	USD
CY2011	clf	Income Tax Expense Benefit Percent IncomeTaxExpenseBenefitPercent	0.186
CY2013	clf	Income Tax Expense Benefit Percent IncomeTaxExpenseBenefitPercent	0.113
CY2012	clf	Income Tax Expense Benefit Percent IncomeTaxExpenseBenefitPercent	-0.51
CY2013	clf	Income Tax Reconciliation Manufacturers Deduction IncomeTaxReconciliationManufacturersDeduction	-7900000	USD
CY2012	clf	Income Tax Reconciliation Manufacturers Deduction IncomeTaxReconciliationManufacturersDeduction	-4700000	USD
CY2011	clf	Income Tax Reconciliation Manufacturers Deduction IncomeTaxReconciliationManufacturersDeduction	-11900000	USD
CY2012	clf	Income Tax Reconciliation Manufacturers Deduction Percent IncomeTaxReconciliationManufacturersDeductionPercent	0.009
CY2011	clf	Income Tax Reconciliation Manufacturers Deduction Percent IncomeTaxReconciliationManufacturersDeductionPercent	-0.005
CY2013	clf	Income Tax Reconciliation Manufacturers Deduction Percent IncomeTaxReconciliationManufacturersDeductionPercent	-0.016
CY2011	clf	Income Tax Reconciliation Tax Deduction For Percentage Depletion In Excess Of Cost Depletion IncomeTaxReconciliationTaxDeductionForPercentageDepletionInExcessOfCostDepletion	-153400000	USD
CY2012	clf	Income Tax Reconciliation Tax Deduction For Percentage Depletion In Excess Of Cost Depletion IncomeTaxReconciliationTaxDeductionForPercentageDepletionInExcessOfCostDepletion	-109100000	USD
CY2013	clf	Income Tax Reconciliation Tax Deduction For Percentage Depletion In Excess Of Cost Depletion IncomeTaxReconciliationTaxDeductionForPercentageDepletionInExcessOfCostDepletion	-97600000	USD
CY2013	clf	Income Tax Reconciliation Tax Deductionforpercentagedepletioninexcessofcostdepletionpercent IncomeTaxReconciliationTaxDeductionforpercentagedepletioninexcessofcostdepletionpercent	-0.199
CY2011	clf	Income Tax Reconciliation Tax Deductionforpercentagedepletioninexcessofcostdepletionpercent IncomeTaxReconciliationTaxDeductionforpercentagedepletioninexcessofcostdepletionpercent	-0.07
CY2012	clf	Income Tax Reconciliation Tax Deductionforpercentagedepletioninexcessofcostdepletionpercent IncomeTaxReconciliationTaxDeductionforpercentagedepletioninexcessofcostdepletionpercent	0.217
CY2013	clf	Incomenotsubjecttotaxpercent Incomenotsubjecttotaxpercent	-0.218
CY2012	clf	Incomenotsubjecttotaxpercent Incomenotsubjecttotaxpercent	0.215
CY2011	clf	Incomenotsubjecttotaxpercent Incomenotsubjecttotaxpercent	-0.031
CY2011	clf	Increase Decrease In Deferred Revenue And Below Market Sales Contracts IncreaseDecreaseInDeferredRevenueAndBelowMarketSalesContracts	-146000000	USD
CY2013	clf	Increase Decrease In Deferred Revenue And Below Market Sales Contracts IncreaseDecreaseInDeferredRevenueAndBelowMarketSalesContracts	-52800000	USD
CY2012	clf	Increase Decrease In Deferred Revenue And Below Market Sales Contracts IncreaseDecreaseInDeferredRevenueAndBelowMarketSalesContracts	-24500000	USD
CY2013Q4	clf	Long Term Debt Maturities Total LongTermDebtMaturitiesTotal	3061700000	USD
CY2013	clf	Management Estimate Of62 Fe ManagementEstimateOf62Fe	0.62
CY2013Q4	clf	Mine Reclamation And Closing Liability Current And Noncurrent MineReclamationAndClosingLiabilityCurrentAndNoncurrent	312600000	USD
CY2012Q4	clf	Mine Reclamation And Closing Liability Current And Noncurrent MineReclamationAndClosingLiabilityCurrentAndNoncurrent	249400000	USD
CY2013	clf	Minimum Participants Cost Percentage To Average Coverage Cost MinimumParticipantsCostPercentageToAverageCoverageCost	0.15
CY2012	clf	Non Taxable Hedging Income NonTaxableHedgingIncome	0	USD
CY2013	clf	Non Taxable Hedging Income NonTaxableHedgingIncome	0	USD
CY2011	clf	Non Taxable Hedging Income NonTaxableHedgingIncome	32400000	USD
CY2013	clf	Non Taxable Loss Income Related To Noncontrolling Interests NonTaxableLossIncomeRelatedToNoncontrollingInterests	1500000	USD
CY2011	clf	Non Taxable Loss Income Related To Noncontrolling Interests NonTaxableLossIncomeRelatedToNoncontrollingInterests	63600000	USD
CY2012	clf	Non Taxable Loss Income Related To Noncontrolling Interests NonTaxableLossIncomeRelatedToNoncontrollingInterests	-61000000	USD
CY2012	clf	Nontaxable Hedging Income Percent NontaxableHedgingIncomePercent	0
CY2011	clf	Nontaxable Hedging Income Percent NontaxableHedgingIncomePercent	-0.015
CY2013	clf	Nontaxable Hedging Income Percent NontaxableHedgingIncomePercent	0
CY2011	clf	Nontaxablelossincomerelatedtononcontrollinginterestspercent Nontaxablelossincomerelatedtononcontrollinginterestspercent	-0.029
CY2013	clf	Nontaxablelossincomerelatedtononcontrollinginterestspercent Nontaxablelossincomerelatedtononcontrollinginterestspercent	-0.003
CY2012	clf	Nontaxablelossincomerelatedtononcontrollinginterestspercent Nontaxablelossincomerelatedtononcontrollinginterestspercent	-0.12
CY2013	clf	Other Comprehensive Income Loss Foreign Currency Translation Reclassification Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationReclassificationNetOfTax	-29400000	USD
CY2012	clf	Other Comprehensive Income Loss Foreign Currency Translation Reclassification Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationReclassificationNetOfTax	-14400000	USD
CY2011	clf	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	0	USD
CY2012	clf	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	2600000	USD
CY2013	clf	Other Comprehensive Income Loss Other Tax OtherComprehensiveIncomeLossOtherTax	-12400000	USD
CY2011	clf	Other Comprehensive Income Unrealized Gain Loss On Mark To Market Adjustments Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnMarkToMarketAdjustmentsArisingDuringPeriodTax	-17700000	USD
CY2013	clf	Other Comprehensive Income Unrealized Gain Loss On Mark To Market Adjustments Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnMarkToMarketAdjustmentsArisingDuringPeriodTax	2000000	USD
CY2012	clf	Other Comprehensive Income Unrealized Gain Loss On Mark To Market Adjustments Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnMarkToMarketAdjustmentsArisingDuringPeriodTax	1700000	USD
CY2011	clf	Other Increases Decreases To Unrecognized Tax Benefits OtherIncreasesDecreasesToUnrecognizedTaxBenefits	0	USD
CY2012	clf	Other Increases Decreases To Unrecognized Tax Benefits OtherIncreasesDecreasesToUnrecognizedTaxBenefits	0	USD
CY2013	clf	Other Increases Decreases To Unrecognized Tax Benefits OtherIncreasesDecreasesToUnrecognizedTaxBenefits	0	USD
CY2011	clf	Payments To Acquire Property Plant And Equipment Net PaymentsToAcquirePropertyPlantAndEquipmentNet	862100000	USD
CY2012	clf	Payments To Acquire Property Plant And Equipment Net PaymentsToAcquirePropertyPlantAndEquipmentNet	1127500000	USD
CY2013	clf	Payments To Acquire Property Plant And Equipment Net PaymentsToAcquirePropertyPlantAndEquipmentNet	861600000	USD
CY2011	clf	Percentage Of Related Party Revenue PercentageOfRelatedPartyRevenue	0.347
CY2013	clf	Percentage Of Related Party Revenue PercentageOfRelatedPartyRevenue	0.311
CY2012	clf	Percentage Of Related Party Revenue PercentageOfRelatedPartyRevenue	0.301
CY2011	clf	Percentage Of Segment Revenue PercentageOfSegmentRevenue	1
CY2013	clf	Percentage Of Segment Revenue PercentageOfSegmentRevenue	1
CY2012	clf	Percentage Of Segment Revenue PercentageOfSegmentRevenue	1
CY2012Q4	clf	Preferred Shares Issued And Outstanding Value PreferredSharesIssuedAndOutstandingValue	0	USD
CY2013Q4	clf	Preferred Shares Issued And Outstanding Value PreferredSharesIssuedAndOutstandingValue	731300000	USD
CY2011	clf	Realizedand Unrealized Gains Losses Derivativesand Currency Hedges RealizedandUnrealizedGainsLossesDerivativesandCurrencyHedges	69000000	USD
CY2013	clf	Realizedand Unrealized Gains Losses Derivativesand Currency Hedges RealizedandUnrealizedGainsLossesDerivativesandCurrencyHedges	-3600000	USD
CY2012	clf	Realizedand Unrealized Gains Losses Derivativesand Currency Hedges RealizedandUnrealizedGainsLossesDerivativesandCurrencyHedges	-4100000	USD
CY2013	clf	Reimbursement Revenue And Freight Revenue ReimbursementRevenueAndFreightRevenue	344800000	USD
CY2011	clf	Reimbursement Revenue And Freight Revenue ReimbursementRevenueAndFreightRevenue	242600000	USD
CY2012	clf	Reimbursement Revenue And Freight Revenue ReimbursementRevenueAndFreightRevenue	351800000	USD
CY2013Q4	clf	Reserve For Investment Commitments ReserveForInvestmentCommitments	8700000	USD
CY2013	clf	Security Maturity Period SecurityMaturityPeriod	P10Y
CY2013	clf	Share Based Compensation Arrangement By Share Based Payment Award Number Of Plan Year Agreements ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPlanYearAgreements	3	Agreement
CY2013Q4	clf	Share Based Compensation Arrangement By Share Based Payment Award Number Of Plans ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPlans	2	Plan
CY2013	clf	Tax Adjustments Settlements And Unusual Provisions Percent TaxAdjustmentsSettlementsAndUnusualProvisionsPercent	0.053
CY2011	clf	Tax Adjustments Settlements And Unusual Provisions Percent TaxAdjustmentsSettlementsAndUnusualProvisionsPercent	0.008
CY2012	clf	Tax Adjustments Settlements And Unusual Provisions Percent TaxAdjustmentsSettlementsAndUnusualProvisionsPercent	0.029
CY2013Q4	clf	Total Amortization Expense Finite Lived Intangible Assets TotalAmortizationExpenseFiniteLivedIntangibleAssets	38200000	USD
CY2013	clf	Total Amount Reclassified From Accumulated Other Comprehensive Income Loss During Period TotalAmountReclassifiedFromAccumulatedOtherComprehensiveIncomeLossDuringPeriod	53600000	USD
CY2013Q4	clf	Total Other Assets TotalOtherAssets	408500000	USD
CY2012Q4	clf	Total Other Assets TotalOtherAssets	717600000	USD
CY2013	clf	Trading Day Window Determining Number Of Common Shares Issuable On Conversion TradingDayWindowDeterminingNumberOfCommonSharesIssuableOnConversion	20
CY2013	clf	Undistributed Earnings Losses Related To Noncontrolling Interests UndistributedEarningsLossesRelatedToNoncontrollingInterests	17000000	USD
CY2012	clf	Undistributed Earnings Losses Related To Noncontrolling Interests UndistributedEarningsLossesRelatedToNoncontrollingInterests	400000	USD
CY2011	clf	Unrecognized Tax Benefits Increases Decreases Resulting From Currency Translation UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromCurrencyTranslation	0	USD
CY2012	clf	Unrecognized Tax Benefits Increases Decreases Resulting From Currency Translation UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromCurrencyTranslation	0	USD
CY2013	clf	Unrecognized Tax Benefits Increases Decreases Resulting From Currency Translation UnrecognizedTaxBenefitsIncreasesDecreasesResultingFromCurrencyTranslation	0	USD
CY2013Q4	clf	Value Of Veba Trust Assets As Percentage Of Funding Obligation ValueOfVebaTrustAssetsAsPercentageOfFundingObligation	0.9
CY2012	clf	Weighted Average Number Of Shares Oustanding Depositary WeightedAverageNumberOfSharesOustandingDepositary	0	shares
CY2011	clf	Weighted Average Number Of Shares Oustanding Depositary WeightedAverageNumberOfSharesOustandingDepositary	0	shares
CY2013	clf	Weighted Average Number Of Shares Oustanding Depositary WeightedAverageNumberOfSharesOustandingDepositary	22139000	shares
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000764065
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	153087255	shares
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2013Q2	dei	Entity Public Float EntityPublicFloat	2577942533	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	CLIFFS NATURAL RESOURCES INC.
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2013	dei	Trading Symbol TradingSymbol	clf

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$CLF
CLEVELAND-CLIFFS INC. Stock $clf

2013 Form 10-K Financial Statement

#000076406514000018 Filed on February 14, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLF CLEVELAND-CLIFFS INC. Stock $clf

2013 Form 10-K Financial Statement

#000076406514000018 Filed on February 14, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLF
CLEVELAND-CLIFFS INC. Stock $clf