Annual report pursuant to Section 13 and 15(d)

Derivative Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details)

v2.4.1.9
Derivative Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) (Sabine Pass Liquefaction [Member], Interest Rate Contract [Member], Not Designated as Hedging Instrument [Member], USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Derivative [Line Items]  
Notional Amount $ 20.0invest_DerivativeNotionalAmount
Effective Date Aug. 14, 2012
Maturity Date Jul. 31, 2019
Weighted Average Fixed Interest Rate Paid 1.98%us-gaap_DerivativeAverageFixedInterestRate
Variable Interest Rate Received One-month LIBOR
Maximum [Member]  
Derivative [Line Items]  
Notional Amount $ 2,500.0invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember