Quarterly report pursuant to Section 13 or 15(d)

Revenues from Contracts with Customers (Details)

v3.8.0.1
Revenues from Contracts with Customers (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2018
USD ($)
bcf / d
item
Mar. 31, 2017
USD ($)
Disaggregation of Revenue [Line Items]    
LNG Volume, Purchase Price Percentage of Henry Hub 115.00%  
Regasification Capacity | bcf / d 4.0  
Operating and maintenance expense | $ $ 95 $ 50
TUA Customers [Member]    
Disaggregation of Revenue [Line Items]    
Regasification Capacity | bcf / d 2.0  
Number Of Fixed Price Contracts | item 2  
TUA Customer 1 [Member]    
Disaggregation of Revenue [Line Items]    
Regasification Capacity | bcf / d 1.0  
Revenue, Performance Obligation, Fixed Consideration | $ $ 125  
Long-term Purchase Commitment, Period 20 years  
TUA Customer 2 [Member]    
Disaggregation of Revenue [Line Items]    
Regasification Capacity | bcf / d 1.0  
Revenue, Performance Obligation, Fixed Consideration | $ $ 125  
Long-term Purchase Commitment, Period 20 years  
LNG [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Variable Consideration Received From Customers, Percentage 56.00%  
LNG—affiliate [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Variable Consideration Received From Customers, Percentage 100.00%  
Regasification [Member]    
Disaggregation of Revenue [Line Items]    
Revenue, Variable Consideration Received From Customers, Percentage 3.00%  
Partial TUA Regasification Capacity [Member]    
Disaggregation of Revenue [Line Items]    
Operating and maintenance expense | $ $ 8 $ 0