Debt - Credit Facilities Table (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Line of Credit Facility [Line Items]
Outstanding balance - current	$ 239	$ 0
Weighted average interest rate on current debt	5.47%
SPL Working Capital Facility [Member]
Line of Credit Facility [Line Items]
Original facility size	$ 1,200
Incremental commitments	0
Outstanding balance - current	0	0
Commitments prepaid or terminated	0
Letters of credit issued	425
Available commitment	$ 775
Debt Instrument, Description of Variable Rate Basis	LIBOR or base rate
Debt Instrument, Maturity Date, Description	December 31, 2020, with various terms for underlying loans
SPL Working Capital Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
SPL Working Capital Facility [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
CQP Credit Facilities [Member]
Line of Credit Facility [Line Items]
Original facility size	$ 2,800
Incremental commitments	0
Outstanding balance	0	1,090
Commitments prepaid or terminated	2,685
Letters of credit issued	0
Available commitment	$ 115
Maturity date	Feb. 25, 2020
CQP Credit Facilities [Member] | Portion issued and not drawn [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.25%
CQP Credit Facilities [Member] | Portion issued and not drawn [Member] | February 25, 2019 [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Increase	0.50%
CCH Credit Facility [Member]
Line of Credit Facility [Line Items]
Original facility size	$ 8,404
Incremental commitments	1,566
Outstanding balance	5,156	2,485
Commitments prepaid or terminated	3,832
Letters of credit issued	0
Available commitment	$ 982
Debt Instrument, Description of Variable Rate Basis	LIBOR or base rate
Maturity date	Jun. 30, 2024
CCH Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
CCH Credit Facility [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
CCH Working Capital Facility [Member]
Line of Credit Facility [Line Items]
Original facility size	$ 350
Incremental commitments	850
Outstanding balance - current	168	0
Commitments prepaid or terminated	0
Letters of credit issued	316
Available commitment	$ 716
Debt Instrument, Description of Variable Rate Basis	LIBOR or base rate
Maturity date	Jun. 29, 2023
CCH Working Capital Facility [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.25%
CCH Working Capital Facility [Member] | Minimum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.25%
CCH Working Capital Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
CCH Working Capital Facility [Member] | Maximum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Cheniere Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Original facility size	$ 750
Incremental commitments	500
Outstanding balance	0	$ 0
Commitments prepaid or terminated	0
Letters of credit issued	0
Available commitment	$ 1,250
Debt Instrument, Description of Variable Rate Basis	LIBOR or base rate
Maturity date	Dec. 13, 2022
Cheniere Revolving Credit Facility [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%
Cheniere Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.75%
Cheniere Revolving Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Cheniere Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%