Accrued Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Accrued Liabilities, Current [Abstract]
Interest costs and related debt fees	$ 390	$ 245
Accrued natural gas purchases	599	576
LNG terminals and related pipeline costs	162	147
Compensation and benefits	44	123
Accrued LNG inventory	3	4
Other accrued liabilities	65	80
Total accrued liabilities	$ 1,263	$ 1,175