Derivative Instruments - Derivative Gain (Loss) (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended		9 Months Ended
		Mar. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest Rate Derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gain (loss), net		$ (7)
Interest Rate Derivatives [Member] | Derivative gain (loss), net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gain (loss), net			$ 0	$ 3	$ (2)	$ (13)
Liquefaction Supply Derivatives [Member] | Cost of sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative gain (loss), net	[1],[2]		$ (11)	$ (11)	$ (51)	$ (23)

[1] Does not include the realized value associated with derivative instruments that settle through physical delivery.

[2] Fair value fluctuations associated with commodity derivative activities are classified and presented consistently with the item economically hedged and the nature and intent of the derivative instrument.