Quarterly report pursuant to Section 13 or 15(d)

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

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Derivative Instruments - Schedule of Level 3 Derivatives Activity (Details) - Physical Liquefaction Supply Derivatives [Member] - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance, beginning of period $ 79 $ 32
Realized and mark-to-market gains:    
Included in cost of sales (41) (2) [1]
Purchases and settlements:    
Purchases 4 0
Settlements (1) 0 [1]
Balance, end of period 41 30
Change in unrealized gains relating to instruments still held at end of period $ (41) (2)
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 three months ended March 31, 2016.