Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - LNG Terminal Capacity Agreements (Details)

v2.4.1.9
Related Party Transactions - LNG Terminal Capacity Agreements (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Related Party Transaction [Line Items]      
Revenues—affiliate $ 2,958,000us-gaap_RevenueFromRelatedParties $ 2,940,000us-gaap_RevenueFromRelatedParties $ 8,137,000us-gaap_RevenueFromRelatedParties
Sabine Pass Liquefaction [Member] | Sabine Pass LNG, LP [Member] | LNG Terminal Capacity Agreements [Member]      
Related Party Transaction [Line Items]      
Regasification capacity, in Bcf/d 2.0cqp_RegasificationCapacity
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_SabinePassLngLpMember
   
Related Party Transaction, Committed Annual Fee 250,000,000cqp_RelatedPartyTransactionCommittedAnnualFee
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_SabinePassLngLpMember
   
Related Party Agreement Term 20 years    
Terminal Use Agreement Maintenance Expense 26,100,000cqp_TerminalUseAgreementMaintenanceExpenseIncludingAffiliate
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_SabinePassLngLpMember
26,600,000cqp_TerminalUseAgreementMaintenanceExpenseIncludingAffiliate
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_SabinePassLngLpMember
10,100,000cqp_TerminalUseAgreementMaintenanceExpenseIncludingAffiliate
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_SabinePassLngLpMember
Cheniere Marketing, LLC [Member] | Cheniere Energy Investments, LLC [Member] | LNG Terminal Capacity Agreements [Member]      
Related Party Transaction [Line Items]      
Proceeds (Payments) of Gross Margin Earned, Percentage 80.00%cqp_ProceedsPaymentsOfGrossMarginEarnedPercentage
/ dei_LegalEntityAxis
= cqp_CheniereMarketingLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyInvestmentsLlcMember
   
Revenues—affiliate $ 0us-gaap_RevenueFromRelatedParties
/ dei_LegalEntityAxis
= cqp_CheniereMarketingLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyInvestmentsLlcMember
$ 0us-gaap_RevenueFromRelatedParties
/ dei_LegalEntityAxis
= cqp_CheniereMarketingLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyInvestmentsLlcMember
$ 4,900,000us-gaap_RevenueFromRelatedParties
/ dei_LegalEntityAxis
= cqp_CheniereMarketingLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LngTerminalCapacityAgreementsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyInvestmentsLlcMember
Cheniere Marketing, LLC [Member] | Sabine Pass Liquefaction [Member] | LNG Sale and Purchase Agreement [Member]      
Related Party Transaction [Line Items]      
Incremental LNG Volume, Purchase Price Percentage of Henry Hub 115.00%cqp_IncrementalLngVolumePurchasePricePercentage
/ dei_LegalEntityAxis
= cqp_CheniereMarketingLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LNGSaleandPurchaseAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_SabinePassLiquefactionMember
   
Incremental LNG Volume, Purchase Price Per MMBtu 3.00cqp_IncrementalLngVolumePurchasePricePerMmbtu
/ dei_LegalEntityAxis
= cqp_CheniereMarketingLlcMember
/ us-gaap_RelatedPartyTransactionAxis
= cqp_LNGSaleandPurchaseAgreementMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_SabinePassLiquefactionMember