Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v3.19.3.a.u2
Summary of Significant Accounting Policies (Details)
 12 Months Ended
Dec. 31, 2019
USD ($)
unit
customer
Jan. 01, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]        
Right-of-use assets—Operating $ 94,000,000   $ 0  
Operating Lease, Liability 93,000,000      
Accounts Receivable, Allowance for Credit Loss, Current 0   0  
Derivative instruments designated as cash flow hedges 0   $ 0 $ 0
Taxes, Difference in Bases, Amount $ 5,700,000,000      
Number of Reportable Segments | unit 1      
Sabine Pass LNG Terminal [Member]        
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]        
Asset Retirement Obligation $ 0      
Creole Trail Pipeline [Member]        
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]        
Asset Retirement Obligation $ 0      
Accounting Standards Update 2016-02 [Member]        
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]        
Right-of-use assets—Operating   $ 100,000,000    
Operating Lease, Liability   $ 100,000,000    
Maximum [Member] | Sabine Pass LNG Terminal [Member]        
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]        
Property Lease Term 90 years      
SPL [Member] | Customer Concentration Risk [Member] | SPA Customers [Member]        
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]        
SPA, Term of Agreement 20 years      
Concentration Risk, Number Of Significant Customers | customer 8      
SPLNG [Member] | Customer Concentration Risk [Member] | TUA Customers [Member]        
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]        
Concentration Risk, Number Of Significant Customers | customer 2