Annual report pursuant to Section 13 and 15(d)

Derivative Instruments - Schedule of Level 3 Activity (Details)

v3.20.4
Derivative Instruments - Schedule of Level 3 Activity (Details) - Physical Liquefaction Supply Derivatives [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Balance, beginning of period $ 24 $ (25) $ 43
Realized and mark-to-market gains (losses):      
Included in cost of sales (43) 6 (3)
Purchases and settlements:      
Purchases 5 0 (37)
Settlements (7) 42 (29)
Transfers into Level 3, net [1] 0 1 1
Balance, end of period (21) 24 (25)
Change in unrealized gain (loss) relating to instruments still held at end of period $ (43) $ 6 $ (3)
[1] Transferred into Level 3 as a result of unobservable market, or out of Level 3 as a result of observable market for the underlying natural gas purchase agreements.