Cheniere Energy, Inc. Annual report pursuant to Section 13 and 15(d)

Customer Concentration - Schedule of Revenue from External Customers by Country (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Concentration Risk [Line Items]
Revenues from External Customers	$ 2,383	$ 1,819	$ 1,543	$ 2,242	$ 1,746	$ 1,403	$ 1,241	$ 1,211	$ 7,987	$ 5,601	$ 1,283
Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Revenues from External Customers									7,987	5,601	1,283
Geographic Concentration Risk [Member] \| United States
Concentration Risk [Line Items]
Revenues from External Customers									1,911	1,592	769
Geographic Concentration Risk [Member] \| South Korea
Concentration Risk [Line Items]
Revenues from External Customers									1,517	762	0
Geographic Concentration Risk [Member] \| Ireland
Concentration Risk [Line Items]
Revenues from External Customers									1,098	787	63
Geographic Concentration Risk [Member] \| India
Concentration Risk [Line Items]
Revenues from External Customers									1,048	48	23
Geographic Concentration Risk [Member] \| Japan
Concentration Risk [Line Items]
Revenues from External Customers									193	1,246	162
Geographic Concentration Risk [Member] \| Other countries
Concentration Risk [Line Items]
Revenues from External Customers									$ 2,220	$ 1,166	$ 266