Debt - Convertible Notes Table (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018	Mar. 31, 2015	Nov. 30, 2014
2021 Cheniere Convertible Unsecured Notes [Member]
Debt Instrument [Line Items]
Aggregate original principal		$ 1,000
Debt component, net of discount and debt issuance costs		1,221				$ 809
Equity component		$ 211		$ 209		$ 191
Maturity date		May 28, 2021
Contractual interest rate		4.875%
Effective interest rate		8.20%	[1]	8.40%
Remaining debt discount and debt issuance costs amortization period	[2]	1 year 4 months 24 days
2025 CCH Holdco II Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate original principal		$ 1,000
Debt component, net of discount and debt issuance costs		1,567
Equity component		$ 0
Maturity date		May 13, 2025
Contractual interest rate		11.00%
Effective interest rate	[1]	12.00%
Remaining debt discount and debt issuance costs amortization period	[2]	9 months 18 days
2045 Cheniere Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate original principal		$ 625
Debt component, net of discount and debt issuance costs		314			$ 304
Equity component		$ 194		$ 194	$ 196
Maturity date		Mar. 15, 2045
Contractual interest rate		4.25%
Effective interest rate		9.40%	[1]	9.40%
Remaining debt discount and debt issuance costs amortization period	[2]	25 years 2 months 12 days

[1] Rate to accrete the discounted carrying value of the convertible notes to the face value over the remaining amortization period.

[2] We amortize any debt discount and debt issuance costs using the effective interest over the period through contractual maturity except for the 2025 CCH HoldCo II Convertible Senior Notes, which are amortized through the date they are first convertible by holders into our common stock.