| Other Non-Current Assets (Details) - USD ($) $ in Millions | Mar. 31, 2019 | Dec. 31, 2018 | 
|---|---|---|
| Other Assets, Noncurrent [Abstract] | ||
| Advances made to municipalities for water system enhancements | $ 90 | $ 90 | 
| Advances and other asset conveyances to third parties to support LNG terminals | 36 | 36 | 
| Tax-related payments and receivables | 17 | 17 | 
| Information technology service assets | 10 | 20 | 
| Advances made under EPC and non-EPC contracts | 1 | 14 | 
| Other | 6 | 7 | 
| Other non-current assets, net | $ 160 | $ 184 | 
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- Definition Advances And Other Asset Conveyances To Third Parties No definition available. 
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- Definition Advances Made To Municipalities No definition available. 
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- Definition Advances Made Under Long-Term Contracts No definition available. 
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- Definition Information Technology Service Assets No definition available. 
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- Definition Tax-Related Payments And Receivables No definition available. 
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- Definition Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer. No definition available. 
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- Definition Amount of noncurrent assets classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- References No definition available. 
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