Annual report pursuant to Section 13 and 15(d)

Derivative Instruments - Schedule of Level 3 Activity (Details)

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Derivative Instruments - Schedule of Level 3 Activity (Details) - Physical Liquefaction Supply Derivatives [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Balance, beginning of period $ (25) $ 43 $ 79
Realized and mark-to-market gains (losses):      
Included in cost of sales 6 (3) (37)
Purchases and settlements:      
Purchases 0 (37) 14
Settlements (42) 29 12
Transfers out of Level 3 (1) [1] 1 [1] (1)
Balance, end of period 24 (25) 43
Change in unrealized gains (losses) relating to instruments still held at end of period $ 6 $ (3) $ (37)
[1] Transferred to Level 2 as a result of observable market for the underlying natural gas purchase agreements.