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Exploration And Evaluation - Summary of Exploration And Evaluation (Detail) - Exploration and evaluation assets [member] - Carrying Amounts [member] - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
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Jun. 30, 2024 | Dec. 31, 2023
Asia Pacific [Member] |  |  |
Disclosure of detailed information about exploration and evaluation [line items] |  |  |
Carrying amount, Beginning balance | $ 568 | $ 529 |
Additions | 11 | 79 |
Expensed |  | (31) |
Transferred exploration and evaluation | (8) | (9) | [1]
Carrying amount, Ending balance | 571 | 568 |
Americas [Member] |  |  |
Disclosure of detailed information about exploration and evaluation [line items] |  |  |
Carrying amount, Beginning balance | 76 | 240 |
Additions | 52 | 161 |
Amortisation of licence acquisition costs | (5) | (2) |
Expensed |  | (28) |
Transferred exploration and evaluation | 0 | (295) | [1]
Carrying amount, Ending balance | 123 | 76 |
Africa [Member] |  |  |
Disclosure of detailed information about exploration and evaluation [line items] |  |  |
Carrying amount, Beginning balance | 24 | 38 |
Additions | 14 | 6 |
Amortisation of licence acquisition costs | 0 | (2) |
Expensed |  | (18) |
Transferred exploration and evaluation | (18) |  |
Carrying amount, Ending balance | 20 | 24 |
Other [member] |  |  |
Disclosure of detailed information about exploration and evaluation [line items] |  |  |
Carrying amount, Beginning balance | 668 | 807 |
Additions | 77 | 246 |
Amortisation of licence acquisition costs | (5) | (4) |
Expensed |  | (77) |
Transferred exploration and evaluation | (26) | (304) | [1]
Carrying amount, Ending balance | $ 714 | $ 668 |
[1] | On 20 June 2023, the Group made a final investment decision to develop the Trion resource in Mexico. Related exploration and evaluation assets of $274 million were transferred to oil and gas properties.

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