Annual report pursuant to Section 13 and 15(d)

Derivative Instruments - Narrative (Details)

v2.4.1.9
Derivative Instruments - Narrative (Details) (USD $)
 12 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
May 31, 2014
Nov. 30, 2013
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Asset Transfers Into Level 3 $ 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3 $ 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3    
Asset Transfers out of Level 3 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3    
2013 Liquefaction Credit Facilities [Member] | Sabine Pass Liquefaction [Member]        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Repayments of Lines of Credit     2,100,000,000us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
/ us-gaap_DebtInstrumentAxis
= cqp_A2013SabinePassLiquefactionCreditFacilitiesMember
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember 		885,000,000us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
/ us-gaap_DebtInstrumentAxis
= cqp_A2013SabinePassLiquefactionCreditFacilitiesMember
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
Term Gas Supply Derivatives [Member]        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Derivative Assets (Liabilities), at Fair Value, Net 342,000us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember 		0us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember 		   
Fair Value Measurements, Valuation Technique Basis Spread plus Liquid Location      
Fair Value Measurements, Significant Unobservable Input Basis Spread      
Derivative, Collateral Deposit (Call), Right to Reclaim Cash 0us-gaap_DerivativeCollateralRightToReclaimCash
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember 		     
Derivative, Notional Amount, in MMBtu 1,249,400,000invest_DerivativeNonmonetaryNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember 		     
Term Gas Supply Derivatives [Member] | Minimum [Member]        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Fair Value Measurements, Significant Unobservable Inputs Range (0.035)cqp_FairValueInputsBasisSpread
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember 		     
Derivative, Term of Contract 1 year      
Term Gas Supply Derivatives [Member] | Maximum [Member]        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Fair Value Measurements, Significant Unobservable Inputs Range 0.035cqp_FairValueInputsBasisSpread
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_PriceRiskDerivativeMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember 		     
Derivative, Term of Contract 7 years      
Fuel Derivative or LNG Inventory Derivative [Member] | Other Current Assets [Member]        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Derivative, Collateral Deposit (Call), Right to Reclaim Cash (1,100,000)us-gaap_DerivativeCollateralRightToReclaimCash
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_FuelDerivativeorLNGInventoryDerivativeMember 		900,000us-gaap_DerivativeCollateralRightToReclaimCash
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherCurrentAssetsMember
/ us-gaap_DerivativeInstrumentRiskAxis
= cqp_FuelDerivativeorLNGInventoryDerivativeMember 		   
Interest Rate Contract [Member]        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Derivative Assets (Liabilities), at Fair Value, Net (12,036,000)us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember 		84,639,000us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember 		   
Interest Rate Contract [Member] | Sabine Pass Liquefaction [Member]        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Derivative, Gain (Loss) on Derivative, Net     $ (9,300,000)us-gaap_DerivativeGainLossOnDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember