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Additional Information - Summary of Results from Operation from Oil and Gas Production Activities (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure In Tabular Form Of Results Of Operation From Oil And Gas Production Activities [Line Items] |  |  |
Oil and gas revenue | $ 14,028 | $ 5,624 | $ 3,339
Production costs | (1,630) | (504) | (550)
Exploration expenses | (460) | (54) | (67)
Depreciation, depletion, amortisation and valuation provision | (1,936) | (769) | (6,970)
Production taxes | (445) | (218) | (82)
Accretion expense | (108) | (24) | (28)
Income taxes | (2,858) | (1,312) | 948
Royalty-related taxes | (501) |  |
Results of oil and gas producing activities | 6,090 | 2,743 | (3,410)
Australia [member] |  |  |
Disclosure In Tabular Form Of Results Of Operation From Oil And Gas Production Activities [Line Items] |  |  |
Oil and gas revenue | 12,453 | 5,624 | 3,339
Production costs | (1,277) | (504) | (550)
Exploration expenses | (20) | (6) | (8)
Depreciation, depletion, amortisation and valuation provision | (1,476) | (501) | (5,833)
Production taxes | (429) | (218) | (82)
Accretion expense | (85) | (23) | (27)
Income taxes | (2,707) | (1,312) | 948
Royalty-related taxes | (501) |  |
Results of oil and gas producing activities | 5,958 | 3,060 | (2,213)
International [member] |  |  |
Disclosure In Tabular Form Of Results Of Operation From Oil And Gas Production Activities [Line Items] |  |  |
Oil and gas revenue | 1,575 |  |
Production costs | (353) |  |
Exploration expenses | (440) | (48) | (59)
Depreciation, depletion, amortisation and valuation provision | (460) | (268) | (1,137)
Production taxes | (16) |  |
Accretion expense | (23) | (1) | (1)
Income taxes | (151) |  |
Royalty-related taxes | 0 |  |
Results of oil and gas producing activities | $ 132 | $ (317) | $ (1,197)

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