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Related Party Transactions - Other Agreements (Details) (USD $)
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3 Months Ended |
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Mar. 31, 2015
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Mar. 31, 2014
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Dec. 31, 2014
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| Related Party Transaction [Line Items] |
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| Revenues—affiliate |
$ 812,000us-gaap_RevenueFromRelatedParties
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$ 772,000us-gaap_RevenueFromRelatedParties
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| Cheniere Energy Investments, LLC [Member] | Cheniere Marketing, LLC [Member] | LNG Lease Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| LNG inventory related party |
0lng_LngInventoryRelatedParty
/ dei_LegalEntityAxis
= lng_CheniereEnergyInvestmentsLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_LngLeaseAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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0lng_LngInventoryRelatedParty
/ dei_LegalEntityAxis
= lng_CheniereEnergyInvestmentsLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_LngLeaseAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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| Sabine Pass LNG, LP [Member] | Cooperative Endeavor Agreements [Member] |
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| Related Party Transaction [Line Items] |
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| Tax Initiative Agreement Term |
10 years
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| Sabine Pass LNG, LP [Member] | Cooperative Endeavor Agreements [Member] | Maximum [Member] |
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| Related Party Transaction [Line Items] |
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| Aggregate commitment under the Agreement |
25,000,000us-gaap_OtherCommitment
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_CooperativeEndeavorAgreementsMember
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| Sabine Pass LNG, LP [Member] | Cheniere Marketing, LLC [Member] |
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| Related Party Transaction [Line Items] |
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| Non-current assets from Sabine Pass LNG's ad valorem tax payments |
22,100,000us-gaap_DueFromRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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19,600,000us-gaap_DueFromRelatedPartiesNoncurrent
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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| Sabine Pass LNG, LP [Member] | Cheniere Marketing, LLC [Member] | Contracts for Sale and Purchase of Natural Gas and LNG [Member] |
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| Related Party Transaction [Line Items] |
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| Related Party Transaction, Purchases from Related Party |
1,600,000us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_ContractsforSaleandPurchaseofNaturalGasMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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500,000us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_ContractsforSaleandPurchaseofNaturalGasMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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| Revenues—affiliate |
1,300,000us-gaap_RevenueFromRelatedParties
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_ContractsforSaleandPurchaseofNaturalGasMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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0us-gaap_RevenueFromRelatedParties
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_ContractsforSaleandPurchaseofNaturalGasMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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| Sabine Pass LNG, LP [Member] | Cheniere Energy, Inc. [Member] | Tax Sharing Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Income Taxes Paid, Net |
0us-gaap_IncomeTaxesPaidNet
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_TaxSharingAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereEnergyIncMember
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| Sabine Pass Tug Services, LLC [Member] | Cheniere Marketing, LLC [Member] | Tug Boat Lease Sharing Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Revenues—affiliate |
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700,000us-gaap_RevenueFromRelatedParties
/ dei_LegalEntityAxis
= lng_SabinePassTugServicesLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_TugBoatLeaseSharingAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereMarketingLlcMember
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| Sabine Pass Tug Services, LLC [Member] | Wholly owned subsidiary of Cheniere [Member] | Tug Boat Lease Sharing Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Revenues—affiliate |
700,000us-gaap_RevenueFromRelatedParties
/ dei_LegalEntityAxis
= lng_SabinePassTugServicesLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_TugBoatLeaseSharingAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_WhollyownedsubsidiaryofCheniereMember
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| Sabine Pass Liquefaction [Member] | Cheniere Energy, Inc. [Member] | Tax Sharing Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Income Taxes Paid, Net |
0us-gaap_IncomeTaxesPaidNet
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_TaxSharingAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereEnergyIncMember
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| Cheniere Creole Trail Pipeline LP [Member] | Cheniere Energy, Inc. [Member] | Tax Sharing Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Income Taxes Paid, Net |
$ 0us-gaap_IncomeTaxesPaidNet
/ dei_LegalEntityAxis
= lng_CheniereCreoleTrailPipelineLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_TaxSharingAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereEnergyIncMember
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