| 
           Long-Term Debt Liquefaction Credit Facility (Details) (USD $) 
         | 
        1 Months Ended | 1 Months Ended | 1 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
           Jul. 31, 2012
 
          Liquefaction Credit Facility [Member]
 
          Sabine Pass Liquefaction [Member] 
         | 
        
           Aug. 31, 2012
 
          Liquefaction Credit Facility [Member]
 
          Sabine Pass Liquefaction [Member] 
         | 
        
           Jul. 31, 2012
 
          Liquifaction Credit Facility - LIBOR Loans [Member]
 
          Operations [Member] 
         | 
        
           Jul. 31, 2012
 
          Liquifaction Credit Facility - LIBOR Loans [Member]
 
          Construction [Member] 
         | 
        
           Jul. 31, 2012
 
          Liquifaction Credit Facility - Base Rate Loans [Member]
 
          Construction [Member] 
         | 
        
           Jul. 31, 2012
 
          Liquifaction Credit Facility - Base Rate Loans [Member]
 
          During Operations [Member] 
         | 
        
           Jul. 31, 2012
 
          Liquefaction Credit Facility
 
          Liquefaction Credit Facility [Member] 
         | 
        
           Mar. 31, 2013
 
          Liquefaction Credit Facility
 
          Liquefaction Credit Facility [Member] 
         | 
        
           Mar. 31, 2013
 
          Liquefaction Credit Facility
 
          Liquefaction Credit Facility [Member]
 
          Sabine Pass Liquefaction [Member] 
         | 
        
           Jul. 31, 2012
 
          Liquefaction Credit Facility
 
          Liquifaction Credit Facility - LIBOR Loans [Member] 
         | 
        
           Apr. 10, 2013
 
          Issuance of Debt [Member] 
         | 
        
           Apr. 10, 2013
 
          Issuance of Debt [Member]
 
          Sabine Pass Liquefaction Notes due 2023 [Member] [Member] 
         | 
        
           Apr. 10, 2013
 
          Issuance of Debt [Member]
 
          Senior Secured Notes Due 2021 [Member] 
         | 
        
           Apr. 10, 2013
 
          Aggregate principal amount including April 2013 issuance [Member]
 
          Issuance of Debt [Member]
 
          Senior Secured Notes Due 2021 [Member] 
         | 
      |
| Line of Credit Facility [Line Items] | ||||||||||||||
| Line of credit borrowing capacity | $ 3,600,000,000 | |||||||||||||
| Debt Instrument, Maturity Date | Jul. 31, 2019 | |||||||||||||
| Line of Credit Facility, Amount Outstanding | 100,000,000 | |||||||||||||
| Percentage of Debt Hedged by Interest Rate Derivatives | 75.00% | 75.00% | ||||||||||||
| Notional Amount of Interest Rate Derivatives | 2,900,000,000 | |||||||||||||
| Derivative, Average Fixed Interest Rate | 1.98% | |||||||||||||
| Debt instrument principal amount | 1,000,000,000 | 500,000,000 | 2,000,000,000 | |||||||||||
| Debt instrument stated rate (percent) | 5.625% | 5.625% | ||||||||||||
| Debt Instrument, Description of Variable Rate Basis | LIBOR | |||||||||||||
| Debt Instrument, Basis Spread on Variable Rate | 3.75% | 3.50% | 2.50% | 2.75% | ||||||||||
| Line of Credit Facility, Collateral Fees, Amount | 178,000,000 | |||||||||||||
| Line of Credit Facility, Commitment Fee Percentage | 40.00% | |||||||||||||
| Line of Credit Facility, Amortization Period | 18 years | |||||||||||||
| Net proceeds from debt issuance | $ 1,466,000,000 | |||||||||||||