Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Accrued Liabilities, Current [Abstract]
Interest costs and related debt fees	$ 293	$ 233
Accrued natural gas purchases	460	610
LNG terminals and related pipeline costs	327	125
Compensation and benefits	115	117
Accrued LNG inventory	6	14
Other accrued liabilities	80	70
Total accrued liabilities	$ 1,281	$ 1,169