Network: Asset Retirement Obligations (http://fasb.org/us-gaap/role/disclosure/AssetRetirementObligations)

Line Label Object Class Period Type Balance Name
1 Asset Retirement Obligations [Network]

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 http://fasb.org/us-gaap/role/disclosure/AssetRetirementObligations
2 Asset Retirement Obligation Disclosure [Abstract] [Abstract]

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 us-gaap:AssetRetirementObligationDisclosureAbstract
3 Asset Retirement Obligation [Table] [Table]

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 added:AssetRetirementObligationTable
4 Legal Entity [Axis] [Axis]

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 dei:LegalEntityAxis
5 Consolidated Entity [Domain] [Domain]

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 dei:EntityDomain
6 Asset Retirement Obligation [Roll Up] [Abstract]

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 added:AssetRetirementObligationLineItems
7 Schedule of Change in Asset Retirement Obligation [Table Text Block] [Concept] Text Block (HTML) For Period

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 us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock
8 Schedule of Asset Retirement Obligations [Table Text Block] [Concept] Text Block (HTML) For Period

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 us-gaap:ScheduleOfAssetRetirementObligationsTableTextBlock
9 Asset Retirement Obligation Disclosure [Text Block] [Concept] Text Block (HTML) For Period

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 us-gaap:AssetRetirementObligationDisclosureTextBlock
10 Asset Retirement Obligation [Roll Up] [Abstract]

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 added:AssetRetirementObligationHierarchy
11 Asset Retirement Obligations, Description [Concept] Text/String For Period

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 us-gaap:AssetRetirementObligationsDescription
12 Asset Retirement Obligation, Legally Restricted Assets, Fair Value [Concept] Monetary As Of Debit us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue
13 Asset Retirement Obligations, Significant Changes [Concept] Text/String For Period

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 us-gaap:AssetRetirementObligationsSignificantChanges
14 Asset Retirement Obligations, Liability Not Recognized [Concept] Text/String For Period

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 us-gaap:AssetRetirementObligationsLiabilityNotRecognized
15 Asset Retirement Obligation, Cash Paid to Settle [Concept] Monetary For Period Credit us-gaap:AssetRetirementObligationCashPaidToSettle
16 Asset Retirement Obligation [Roll Up] [Abstract]

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 us-gaap:AssetRetirementObligationAbstract
17 Asset Retirement Obligation, Current [Concept] Monetary As Of Credit us-gaap:AssetRetirementObligationCurrent
18 Asset Retirement Obligations, Noncurrent [Roll Up] [Abstract]

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 us-gaap:AssetRetirementObligationsNoncurrentAbstract
19 Mine Reclamation and Closing Liability, Noncurrent [Concept] Monetary As Of Credit us-gaap:MineReclamationAndClosingLiabilityNoncurrent
20 Oil and Gas Reclamation Liability, Noncurrent [Concept] Monetary As Of Credit us-gaap:OilAndGasReclamationLiabilityNoncurrent
21 Decommissioning Liability, Noncurrent [Concept] Monetary As Of Credit us-gaap:DecommissioningLiabilityNoncurrent
22 Spent Nuclear Fuel Obligation, Noncurrent [Concept] Monetary As Of Credit us-gaap:SpentNuclearFuelObligationNoncurrent
23 Accrued Capping, Closure, Post-closure and Environmental Costs, Noncurrent [Concept] Monetary As Of Credit us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent
24 Asset Retirement Obligations, Noncurrent, Total [Concept] Monetary As Of Credit us-gaap:AssetRetirementObligationsNoncurrent
25 Asset Retirement Obligation, Total [Concept] Monetary As Of Credit us-gaap:AssetRetirementObligation
26 Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] [Abstract]

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 us-gaap:AssetRetirementObligationRollForwardAnalysisRollForward
27 Asset Retirement Obligation, Beginning Balance [Concept] Monetary As Of Credit us-gaap:AssetRetirementObligation
28 Asset Retirement Obligation, Period Increase (Decrease) [Roll Up] [Abstract]

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 added:AssetRetirementObligationPeriodIncreaseDecreaseRollUp
29 Asset Retirement Obligation, Liabilities Incurred [Concept] Monetary For Period Credit us-gaap:AssetRetirementObligationLiabilitiesIncurred
30 Asset Retirement Obligation, Liabilities Settled [Concept] Monetary For Period Debit us-gaap:AssetRetirementObligationLiabilitiesSettled
31 Asset Retirement Obligation, Accretion Expense [Concept] Monetary For Period Debit us-gaap:AssetRetirementObligationAccretionExpense
32 Asset Retirement Obligation, Revision of Estimate [Concept] Monetary For Period Credit us-gaap:AssetRetirementObligationRevisionOfEstimate
33 Asset Retirement Obligation, Foreign Currency Translation [Concept] Monetary For Period Credit us-gaap:AssetRetirementObligationForeignCurrencyTranslation
34 Asset Retirement Obligation, Period Increase (Decrease), Total [Concept] Monetary For Period

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 us-gaap:AssetRetirementObligationPeriodIncreaseDecrease
35 Asset Retirement Obligation, Ending Balance [Concept] Monetary As Of Credit us-gaap:AssetRetirementObligation