Derivative Instruments - Derivative Instruments, Gain (Loss) (Details) - USD ($) $ in Millions  | 
3 Months Ended | 6 Months Ended | ||||
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Jun. 30, 2020  | 
Jun. 30, 2018  | 
Jun. 30, 2020  | 
Jun. 30, 2019  | 
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| LNG revenues [Member] | ||||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||||
| Derivative gain (loss), net | [1] | $ (4) | $ 0 | $ (4) | $ 1 | |
| Cost of sales [Member] | ||||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||||
| Derivative gain (loss), net | [1] | $ 12 | $ 7 | $ 33 | $ 83 | |
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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