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Derivative Instruments - Narrative (Details) (USD $)
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3 Months Ended |
1 Months Ended |
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Mar. 31, 2015
MMBTU
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Mar. 31, 2014
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Mar. 31, 2015
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May 31, 2014
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Nov. 30, 2013
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] |
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| Asset transfers into level 3 |
$ 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
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$ 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
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| Asset transfers out of level 3 |
0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
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0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
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| Energy Units Secured Through Long-Term Purchase Agreements, in MMBtu |
2,161,900,000lng_EnergyUnitsSecuredThroughLongTermPurchaseAgreements
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2,161,900,000lng_EnergyUnitsSecuredThroughLongTermPurchaseAgreements
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| Term Gas Supply Derivatives [Member] |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] |
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| Derivative, Notional Amount, in MMBtu |
1,249,400,000invest_DerivativeNonmonetaryNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
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1,249,400,000invest_DerivativeNonmonetaryNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
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| Term Gas Supply Derivatives [Member] | Minimum [Member] |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] |
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| Derivative, Term of Contract |
1 year
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| Term Gas Supply Derivatives [Member] | Maximum [Member] |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] |
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| Derivative, Term of Contract |
7 years
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| SPL Interest Rate Derivatives [Member] |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] |
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| Derivative, Gain (Loss) on Derivative, Net |
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(34,700,000)us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_SPLInterestRateDerivativesMember
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| Contingent Interest Rate Derivatives [Member] | Minimum [Member] | Final Investment Decision to Commence Construction of CCL Project [Member] |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] |
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| Contingency and Syndication Premiums |
46,100,000us-gaap_DerivativeCostOfHedge
/ lng_ContingenciesByNatureAxis
= lng_FinalInvestmentDecisiontoCommenceConstructionofCCLProjectMember
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_ContingentInterestRateDerivativesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
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| Contingent Interest Rate Derivatives [Member] | Maximum [Member] | Final Investment Decision to Commence Construction of CCL Project [Member] |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] |
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| Contingency and Syndication Premiums |
65,400,000us-gaap_DerivativeCostOfHedge
/ lng_ContingenciesByNatureAxis
= lng_FinalInvestmentDecisiontoCommenceConstructionofCCLProjectMember
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_ContingentInterestRateDerivativesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
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| Sabine Pass Liquefaction [Member] | 2013 Liquefaction Credit Facilities [Member] |
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| Derivative Instruments and Hedging Activities Disclosures [Line Items] |
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| Line of Credit Facility, Increase (Decrease), Net |
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$ (1,800,000,000)us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
/ us-gaap_DebtInstrumentAxis
= lng_A2013SabinePassLiquefactionCreditFacilitiesMember
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
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$ (2,100,000,000)us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
/ us-gaap_DebtInstrumentAxis
= lng_A2013SabinePassLiquefactionCreditFacilitiesMember
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
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$ (885,000,000)us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
/ us-gaap_DebtInstrumentAxis
= lng_A2013SabinePassLiquefactionCreditFacilitiesMember
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
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