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Related Party Transactions - Service 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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| Advances to Affiliate Current |
$ 21,804,000lng_AdvancesToAffiliateCurrent
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$ 27,323,000lng_AdvancesToAffiliateCurrent
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| General and administrative expense—affiliate |
21,597,000us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
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27,153,000us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
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| Operating and maintenance expense—affiliate |
4,773,000us-gaap_CostsAndExpensesRelatedParty
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4,431,000us-gaap_CostsAndExpensesRelatedParty
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| Service Agreements [Member] |
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| Related Party Transaction [Line Items] |
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| Advances to Affiliate Current |
21,800,000lng_AdvancesToAffiliateCurrent
/ us-gaap_RelatedPartyTransactionAxis
= us-gaap_ServiceAgreementsMember
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27,300,000lng_AdvancesToAffiliateCurrent
/ us-gaap_RelatedPartyTransactionAxis
= us-gaap_ServiceAgreementsMember
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| General and administrative expense—affiliate |
21,600,000us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= us-gaap_ServiceAgreementsMember
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27,200,000us-gaap_RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= us-gaap_ServiceAgreementsMember
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| Operating and maintenance expense—affiliate |
4,773,000us-gaap_CostsAndExpensesRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= us-gaap_ServiceAgreementsMember
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4,400,000us-gaap_CostsAndExpensesRelatedParty
/ us-gaap_RelatedPartyTransactionAxis
= us-gaap_ServiceAgreementsMember
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| Cheniere LNG Terminals, LLC [Member] | Cheniere Partners Services Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Quarterly non-accountable overhead reimbursement charge |
2,800,000lng_RelatedPartyTransactionQuarterlyFee
/ us-gaap_RelatedPartyTransactionAxis
= lng_ChenierePartnersServicesAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereLNGTerminalsLLCMember
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| Sabine Pass LNG, LP [Member] | Cheniere LNG Terminals, LLC [Member] | Management Services Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Related Party Transaction, Committed Monthly Fee |
520,000lng_RelatedPartyTransactionCommittedMonthlyFee
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_ManagementServicesAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereLNGTerminalsLLCMember
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| Sabine Pass LNG, LP [Member] | Cheniere Energy Investments, LLC [Member] | Operation and Maintenance Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Related Party Transaction, Committed Monthly Fee |
130,000lng_RelatedPartyTransactionCommittedMonthlyFee
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_OperationAndMaintenanceAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereEnergyInvestmentsLlcMember
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| Related Party Transaction, Bonus Percentage Entitled Upon Meeting Certain Criteria |
50.00%lng_RelatedPartyTransactionBonusPercentageEntitledUponMeetingCertainCriteria
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_OperationAndMaintenanceAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereEnergyInvestmentsLlcMember
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| Sabine Pass Liquefaction [Member] | Cheniere LNG Terminals, LLC [Member] | Management Services Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Related Party Transaction, Committed Monthly Fee |
541,667lng_RelatedPartyTransactionCommittedMonthlyFee
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_ManagementServicesAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereLNGTerminalsLLCMember
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| Monthly fee as a percentage of capital expenditures incurred in the previous month |
2.40%lng_ProceedsPaymentsOfCapitalExpendituresIncurred
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_ManagementServicesAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereLNGTerminalsLLCMember
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| Sabine Pass Liquefaction [Member] | Cheniere Energy Investments, LLC [Member] | Operation and Maintenance Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Related Party Transaction, Committed Monthly Fee |
$ 83,333lng_RelatedPartyTransactionCommittedMonthlyFee
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_OperationAndMaintenanceAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereEnergyInvestmentsLlcMember
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| Monthly fee as a percentage of capital expenditures incurred in the previous month |
0.60%lng_ProceedsPaymentsOfCapitalExpendituresIncurred
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_OperationAndMaintenanceAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereEnergyInvestmentsLlcMember
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| Cheniere Creole Trail Pipeline LP [Member] | Cheniere LNG Terminals, LLC [Member] | Management Services Agreement [Member] |
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| Related Party Transaction [Line Items] |
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| Monthly fee as a percentage of capital expenditures incurred in the previous month |
3.00%lng_ProceedsPaymentsOfCapitalExpendituresIncurred
/ dei_LegalEntityAxis
= lng_CheniereCreoleTrailPipelineLpMember
/ us-gaap_RelatedPartyTransactionAxis
= lng_ManagementServicesAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= lng_CheniereLNGTerminalsLLCMember
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