Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Schedule of Level 3 Derivatives Activity (Details)

v3.7.0.1
Derivative Instruments - Schedule of Level 3 Derivatives Activity (Details) - Physical Liquefaction Supply Derivatives [Member] - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning of period $ 41 $ 30 $ 79 $ 32
Realized and mark-to-market losses:        
Included in cost of sales (1) (8) (40) (10) [1]
Purchases and settlements:        
Purchases 2 0 5 0
Settlements (2) 0 (4) 0 [1]
Balance, end of period 40 22 40 22
Change in unrealized gains relating to instruments still held at end of period $ (1) $ (8) $ (40) (9)
Decrease in Fair Value Realized and Capitalized During Period       $ 1
[1] Does not include the decrease in fair value of $1 million related to the realized gains capitalized during the six months ended June 30, 2016.