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Additional Information - Summary of Oil and Gas Property Acquistion Exploration And Development Activities (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Oil And Gas Property Acquistion Exploration And Development Activities Costs Incurred [Line Items] |  |  |
Acquisitions of proved property | $ 19,586 | $ 205 | $ 540
Acquisitions of unproved property | 180 | 7 | 26
Exploration | 580 | 543 | 396
Development | 4,105 | 2,076 | 1,243
Total costs | 24,451 | 2,831 | 2,205
Australia [member] |  |  |
Oil And Gas Property Acquistion Exploration And Development Activities Costs Incurred [Line Items] |  |  |
Acquisitions of proved property | 8,488 |  |
Acquisitions of unproved property | 0 |  |
Exploration | 39 | 459 | 279
Development | 2,365 | 1,141 | 987
Total costs | 10,892 | 1,600 | 1,266
International [member] |  |  |
Oil And Gas Property Acquistion Exploration And Development Activities Costs Incurred [Line Items] |  |  |
Acquisitions of proved property | 11,098 | 205 | 540
Acquisitions of unproved property | 180 | 7 | 26
Exploration | 541 | 84 | 117
Development | 1,740 | 935 | 256
Total costs | $ 13,559 | $ 1,231 | $ 939

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- Details
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