Basis of Presentation (Details) | 3 Months Ended | 12 Months Ended |
Mar. 31, 2018USD ($)members | Dec. 31, 2017USD ($) |
Cheniere Partners [Member] | | |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | | |
Limited Partners ownership percentage | 48.60% | 48.60% |
Equity Method Investments | $ 0 | $ 0 |
Suspended losses | 740,000,000 | $ 785,000,000 |
Difference Between Carrying Amount and Underlying Equity Due to Class B Unit Conversion | $ 219,000,000 | |
Difference Between Carrying Amount and Underlying Equity Due to Class B Unit Conversion, Remaining Accretion Period | 31 years 4 months | |
GP HoldCo [Member] | | |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | | |
Variable Interest Entity, Ownership Percentage | 0.00% | |
GP HoldCo [Member] | Cheniere Partners GP [Member] | | |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | | |
General Partner ownership percentage | 100.00% | |
Cheniere Partners GP [Member] | | |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | | |
Number Of Members Of The Board Of Directors | members | 11 | |
Cheniere Partners GP [Member] | Cheniere Holdings [Member] | | |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | | |
Number Of Members Of The Board Of Directors | members | 4 | |
Cheniere [Member] | Cheniere Holdings [Member] | Ownership percentage of our outstanding shares required to control GP Holdco [Member] | | |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | | |
Noncontrolling Interest, Ownership Percentage by Parent | 25.00% | |