Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Sabine Pass Liquefaction LC Agreement (Details)

v2.4.1.9
Long-Term Debt - Sabine Pass Liquefaction LC Agreement (Details) (Sabine Pass Liquefaction [Member], Sabine Pass Liquefaction LC Agreement [Member], USD $)
12 Months Ended
Dec. 31, 2014
Line of Credit Facility [Line Items]  
Letter of Credit and Reimbursement Agreement $ 325,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Letter of Credit, Interest Rate 2.00%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Letters of Credit Outstanding, Amount 9,500,000us-gaap_LettersOfCreditOutstandingAmount
Letters of Credit, Drawn Amount $ 0us-gaap_LineOfCredit
Portion issued and not drawn [Member]
 
Line of Credit Facility [Line Items]  
Letter of Credit, Commitment Fee Percentage 2.50%us-gaap_LineOfCreditFacilityCommitmentFeePercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
/ cqp_LetterOfCreditAxis
= cqp_PortionissuedandnotdrawnMember
Unissued Portion [Member]
 
Line of Credit Facility [Line Items]  
Letter of Credit, Commitment Fee Percentage 0.75%us-gaap_LineOfCreditFacilityCommitmentFeePercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_LetterOfCreditMember
/ dei_LegalEntityAxis
= cqp_SabinePassLiquefactionMember
/ cqp_LetterOfCreditAxis
= cqp_UnissuedPortionMember