Annual report pursuant to Section 13 and 15(d)

Revenues from Contracts with Customers - Narrative (Details)

v3.10.0.1
Revenues from Contracts with Customers - Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2018
USD ($)
bcf / d
item
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Disaggregation of Revenue [Line Items]      
LNG Volume, Sales Price Percentage of Henry Hub 115.00%    
Regasification Capacity | bcf / d 4.0    
Operating and maintenance expense | $ $ 409 $ 292 $ 127
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 57.00% 58.00%  
LNG—affiliate [Member]      
Disaggregation of Revenue [Line Items]      
Revenue, Variable Consideration Received From Customers, Percentage 100.00% 100.00%  
Regasification [Member]      
Disaggregation of Revenue [Line Items]      
Revenue, Variable Consideration Received From Customers, Percentage 3.00% 2.00%  
Partial TUA Regasification Capacity [Member]      
Disaggregation of Revenue [Line Items]      
Operating and maintenance expense | $ $ 30 $ 23