Quarterly report pursuant to Section 13 or 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) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
SPL Interest Rate Derivatives [Member]  
Derivative [Line Items]  
Notional Amount of Interest Rate Derivatives $ 20.0invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_SPLInterestRateDerivativesMember
Effective Date Aug. 14, 2012
Maturity Date Jul. 31, 2019
Weighted Average Fixed Interest Rate Paid 1.98%us-gaap_DerivativeAverageFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_SPLInterestRateDerivativesMember
Variable Interest Rate Received One-month LIBOR
SPL Interest Rate Derivatives [Member] | Maximum [Member]  
Derivative [Line Items]  
Notional Amount of Interest Rate Derivatives 691.0invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_SPLInterestRateDerivativesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Contingent Interest Rate Derivatives [Member]  
Derivative [Line Items]  
Notional Amount of Interest Rate Derivatives 28.8invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_ContingentInterestRateDerivativesMember
Effective Date May 08, 2015 [1]
Maturity Date May 31, 2022
Weighted Average Fixed Interest Rate Paid 2.32%us-gaap_DerivativeAverageFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_ContingentInterestRateDerivativesMember
Variable Interest Rate Received One-month LIBOR
Contingent Interest Rate Derivatives [Member] | Maximum [Member]  
Derivative [Line Items]  
Notional Amount of Interest Rate Derivatives $ 5,400.0invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= lng_ContingentInterestRateDerivativesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
[1] The effective date represents management’s estimate of commencement of first monthly settlement of the contingent interest rate derivative instruments, and the maturity date is based on the contractual term of the instruments once effective.