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

Revenues from Contracts with Customers (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) bcf / d item	Jun. 30, 2017 USD ($)
Disaggregation of Revenue [Line Items]
LNG Volume, Purchase Price Percentage of Henry Hub			115.00%
Regasification Capacity \| bcf / d			4.0
Operating and maintenance expense \| $	$ 98	$ 82	$ 193	$ 132
TUA Customers [Member]
Disaggregation of Revenue [Line Items]
Regasification Capacity \| bcf / d			2.0
Number Of Fixed Price Contracts \| item			2
TUA Customer 1 [Member]
Disaggregation of Revenue [Line Items]
Regasification Capacity \| bcf / d			1.0
Revenue, Performance Obligation, Fixed Consideration \| $			$ 125
Long-term Purchase Commitment, Period			20 years
TUA Customer 2 [Member]
Disaggregation of Revenue [Line Items]
Regasification Capacity \| bcf / d			1.0
Revenue, Performance Obligation, Fixed Consideration \| $			$ 125
Long-term Purchase Commitment, Period			20 years
LNG [Member]
Disaggregation of Revenue [Line Items]
Revenue, Variable Consideration Received From Customers, Percentage	55.00%		55.00%
LNG—affiliate [Member]
Disaggregation of Revenue [Line Items]
Revenue, Variable Consideration Received From Customers, Percentage	100.00%		100.00%
Regasification [Member]
Disaggregation of Revenue [Line Items]
Revenue, Variable Consideration Received From Customers, Percentage	3.00%		3.00%
Partial TUA Regasification Capacity [Member]
Disaggregation of Revenue [Line Items]
Operating and maintenance expense \| $	$ 7	$ 8	$ 15	$ 8