Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - LNG Terminal Capacity Agreements (Details)

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Related Party Transactions - LNG Terminal Capacity Agreements (Details)
MMBTU in Millions
 12 Months Ended
Dec. 31, 2019
USD ($)
MMBTU
bcf / d
Cargo
Dec. 31, 2018
USD ($)
Related Party Transaction [Line Items]    
Accounts receivable—affiliate $ 105,000,000 $ 114,000,000
Regasification Capacity | bcf / d 4  
LNG Volume, Purchase Price Percentage of Henry Hub 115.00%  
Terminal Use Agreement [Member] | SPLNG [Member] | SPL [Member]    
Related Party Transaction [Line Items]    
Regasification Capacity | bcf / d 2  
Related Party Transaction, Committed Annual Fee $ 250,000,000  
LNG Sale and Purchase Agreement [Member] | Cheniere Marketing [Member] | SPL [Member]    
Related Party Transaction [Line Items]    
LNG Volume, Purchase Price Percentage of Henry Hub 115.00%  
LNG Volume, Purchase Price Per MMBtu $ 3.00  
2019 Letter Agreement [Member] | Cheniere Marketing [Member] | SPL [Member]    
Related Party Transaction [Line Items]    
Contract Volumes | MMBTU 70  
LNG Volume, Purchase Price Percentage of Henry Hub 115.00%  
LNG Volume, Purchase Price Per MMBtu $ 2.00  
2019 Letter Agreement [Member] | Cheniere Marketing [Member] | SPL [Member] | Maximum [Member]    
Related Party Transaction [Line Items]    
Contract Cargoes | Cargo 20  
2020 Letter Agreement [Member] | Cheniere Marketing [Member] | SPL [Member]    
Related Party Transaction [Line Items]    
LNG Volume, Purchase Price Percentage of Henry Hub 115.00%  
LNG Volume, Purchase Price Per MMBtu $ 1.67  
2020 Letter Agreement [Member] | Cheniere Marketing [Member] | SPL [Member] | Maximum [Member]    
Related Party Transaction [Line Items]    
Contract Cargoes | Cargo 43