Cheniere Energy Partners, L.P. Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Narrative (Details) $ in Millions	1 Months Ended			9 Months Ended
Derivative Instruments - Narrative (Details) $ in Millions	Oct. 31, 2018 USD ($)	Sep. 30, 2018 USD ($) tbtu	Mar. 31, 2017 USD ($)	Sep. 30, 2018 tbtu	Dec. 31, 2017 tbtu
CQP Credit Facilities [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Line of Credit Facility, Decrease		$ 1,200
CQP Interest Rate Derivatives [Member] \| Subsequent Event [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Gain (Loss), Net	$ 28
Physical Liquefaction Supply Derivatives [Member] \| Maximum [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Term of Contract				6 years
Liquefaction Supply Derivatives [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount \| tbtu		2,206		2,206	1,520
SPL [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Energy Units Secured Through Natural Gas Supply Contracts \| tbtu		2,755		2,755	2,214
SPL [Member] \| SPL Credit Facilities [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Line of Credit Facility, Decrease			$ 1,600
SPL [Member] \| SPL Interest Rate Derivatives [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative Gain (Loss), Net			$ (7)