Annual report pursuant to Section 13 and 15(d)

Leases - Narrative (Details)

v2.4.1.9
Leases - Narrative (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended 3 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2009
item
Jun. 30, 2013
lease
Feb. 28, 2005
acre
Operating Leased Assets [Line Items]            
Operating Leases, Rent Expense $ 19.1us-gaap_LeaseAndRentalExpense $ 13.9us-gaap_LeaseAndRentalExpense $ 12.9us-gaap_LeaseAndRentalExpense      
Land [Member]            
Operating Leased Assets [Line Items]            
Operating Leases, Rent Expense $ 3.0us-gaap_LeaseAndRentalExpense
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
$ 2.7us-gaap_LeaseAndRentalExpense
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
$ 2.3us-gaap_LeaseAndRentalExpense
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
     
Sabine Pass LNG, LP [Member] | Land [Member]            
Operating Leased Assets [Line Items]            
Number of Leases 3lng_NumberofLeases
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
         
Property Lease Term 30 years          
Number of Amended Land Leases 2lng_NumberofAmendedLandLeases
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
         
Number Of Available Lease Extensions 6lng_NumberOfAvailableLeaseExtensions
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
         
Lessee Leasing Arrangements, Operating Leases, Renewal Term 10 years          
Acreage under lease 883.0lng_AcreageUnderLease
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
        853.0lng_AcreageUnderLease
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
/ dei_LegalEntityAxis
= lng_SabinePassLngLpMember
Sabine Pass Liquefaction [Member] | Land [Member]            
Operating Leased Assets [Line Items]            
Property Lease Term 5 years          
Number Of Available Lease Extensions 5lng_NumberOfAvailableLeaseExtensions
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
         
Lessee Leasing Arrangements, Operating Leases, Renewal Term 1 year          
Acreage under lease 80.7lng_AcreageUnderLease
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
         
Sabine Pass Liquefaction [Member] | Land2 [Member]            
Operating Leased Assets [Line Items]            
Property Lease Term 30 years          
Number Of Available Lease Extensions 6lng_NumberOfAvailableLeaseExtensions
/ us-gaap_LeaseArrangementTypeAxis
= lng_Land2Member
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
         
Lessee Leasing Arrangements, Operating Leases, Renewal Term 10 years          
Review Period for Inflation Adjustment 5 years          
Acreage under lease 80.6lng_AcreageUnderLease
/ us-gaap_LeaseArrangementTypeAxis
= lng_Land2Member
/ dei_LegalEntityAxis
= lng_SabinePassLiquefactionMember
         
Corpus Christi Liquefaction [Member] | Land [Member]            
Operating Leased Assets [Line Items]            
Property Lease Term 1 year 11 months          
Lessee Leasing Arrangements, Operating Leases, Renewal Term 4 years 11 months          
Acreage under lease 110.0lng_AcreageUnderLease
/ us-gaap_LeaseArrangementTypeAxis
= us-gaap_LandMember
/ dei_LegalEntityAxis
= lng_CorpusChristiLiquefactionMember
         
Sabine Pass Tug Services, LLC [Member] | Tug Boat [Member]            
Operating Leased Assets [Line Items]            
Property Lease Term 10 years          
Number Of Available Lease Extensions 2lng_NumberOfAvailableLeaseExtensions
/ us-gaap_LeaseArrangementTypeAxis
= lng_TugBoatMember
/ dei_LegalEntityAxis
= lng_SabinePassTugServicesLlcMember
         
Lessee Leasing Arrangements, Operating Leases, Renewal Term 5 years          
Sabine Pass Tug Services, LLC [Member] | Tug Boat Lease Sharing Agreement [Member]            
Operating Leased Assets [Line Items]            
Number Of TUA Customers       3lng_NumberOfTUACustomers
/ us-gaap_LeaseArrangementTypeAxis
= lng_TugBoatLeaseSharingAgreementMember
/ dei_LegalEntityAxis
= lng_SabinePassTugServicesLlcMember
   
Cheniere Marketing, LLC [Member] | LNG Vessel [Member]            
Operating Leased Assets [Line Items]            
Number of Leases         3lng_NumberofLeases
/ us-gaap_LeaseArrangementTypeAxis
= lng_LNGVesselMember
/ dei_LegalEntityAxis
= lng_CheniereMarketingLlcMember
 
Property Lease Term 5 years          
Lessee Leasing Arrangements, Operating Leases, Renewal Term 2 years          
Number of Ship Owners 2lng_NumberofShipOwners
/ us-gaap_LeaseArrangementTypeAxis
= lng_LNGVesselMember
/ dei_LegalEntityAxis
= lng_CheniereMarketingLlcMember