Annual report pursuant to Section 13 and 15(d)

Net Income (Loss) per Common Unit (Details)

v2.4.1.9
Net Income (Loss) per Common Unit (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
 12 Months Ended 0 Months Ended
Dec. 31, 2014
Jan. 23, 2015
Class B Units [Member]    
Distribution Made to Limited Partner [Line Items]    
Discount upon issuance of Class B units representing beneficial conversion feature $ 2,130.0us-gaap_DebtInstrumentConvertibleBeneficialConversionFeature
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember 		 
Subsequent Event [Member] | Common Units [Member]    
Distribution Made to Limited Partner [Line Items]    
Distribution Made to Limited Partner, Distributions Declared, Per Unit   $ 0.425us-gaap_DistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit
/ us-gaap_CapitalUnitsByClassAxis
= cqp_CommonUnitsMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Cheniere Energy Partners LP Holdings, LLC [Member] | Class B Units [Member] | Effective Yield Method [Member]    
Distribution Made to Limited Partner [Line Items]    
Amortization of Beneficial Conversion Feature of Class B Units 888.70%cqp_AmortizationofBeneficialConversionFeatureofClassBUnits
/ cqp_AmortizationMethodAxis
= cqp_EffectiveYieldMethodMember
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_CheniereEnergyPartnersLPHoldingsLLCMember 		 
Blackstone CQP Holdco LP [Member] | Class B Units [Member] | Effective Yield Method [Member]    
Distribution Made to Limited Partner [Line Items]    
Amortization of Beneficial Conversion Feature of Class B Units 966.10%cqp_AmortizationofBeneficialConversionFeatureofClassBUnits
/ cqp_AmortizationMethodAxis
= cqp_EffectiveYieldMethodMember
/ us-gaap_CapitalUnitsByClassAxis
= us-gaap_CapitalUnitClassBMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cqp_BlackstoneCqpHoldcoLpMember