Derivative Instruments - Fair Value Inputs - Quantitative Information (Details) - Liquefaction Supply Derivatives [Member] - Fair Value, Inputs, Level 3 [Member]	9 Months Ended
	Sep. 30, 2019 USD ($)
Fair Value Measurement Inputs and Valuation Tecniques [Line Items]
Net Fair Value Liability	$ (31,000,000)
Minimum [Member] | Valuation, Market Approach [Member]
Fair Value Measurement Inputs and Valuation Tecniques [Line Items]
Significant Unobservable Inputs Range	$ (0.708)
Minimum [Member] | Valuation Technique, Option Pricing Model [Member]
Fair Value Measurement Inputs and Valuation Tecniques [Line Items]
Fair Value Inputs Basis Spread Percentage	105.00%
Maximum [Member] | Valuation, Market Approach [Member]
Fair Value Measurement Inputs and Valuation Tecniques [Line Items]
Significant Unobservable Inputs Range	$ 0.056
Maximum [Member] | Valuation Technique, Option Pricing Model [Member]
Fair Value Measurement Inputs and Valuation Tecniques [Line Items]
Fair Value Inputs Basis Spread Percentage	199.00%