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Disposal of Assets - Additional Information (Detail) - Pluto Train 2 Joint Venture [member] - USD ($) $ in Millions | Jan. 18, 2022 | Nov. 15, 2021 | Dec. 31, 2022 | Dec. 31, 2021
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Disposal of assets [line item] |  |  |  |
Percentage of sale of nonoperating participating interest In joint venture |  | 49.00% |  |
Carrying value of participating interest |  |  |  | 49.00%
Proportion of voting rights held in joint venture | 51.00% | 100.00% |  |
Disposal group consideration received on sale of assets | $ 427 |  |  |
Revaluation surplus |  |  | $ 71 |
Global Infrastructure Partners [member] |  |  |  |
Disposal of assets [line item] |  |  |  |
Percentage of sale of nonoperating participating interest In joint venture |  | 49.00% |  |
Proportion of voting rights held in joint venture | 49.00% |  |  |
Proportion of ownership interest in joint venture | 49.00% |  |  |
Additional construction capital expenditure commitment to joint ventures |  | $ 822 |  |
Commitments in relation to joint ventures for development project expenditure |  | $ 5,800 |  |

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