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Oil And Gas Properties - Summary of Oil And Gas Properties (Detail) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | $ 40,791 |  |
At the end of the financial year |  | 40,125 |  | $ 40,791
Oil and gas assets [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 40,791 |  |
At the end of the financial year |  | 40,125 |  | 40,791
Oil and gas assets [member] | Gross carrying amount [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 40,791 |  | 39,919
Additions |  | 2,320 | [1] | 6,595
Disposals at written down value |  | (49) |  | (10)
Depreciation and amortisation |  | (1,893) |  | (3,956)
Completions and transfers |  | 26 | [2] | 304
Impairment losses |  |  |  | (1,440)
Transfer to assets held for sale |  | (1,070) | [3] | (621)
At the end of the financial year |  | 40,125 |  | 40,791
Oil and gas assets [member] | Historical Cost [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 70,439 |  |
At the end of the financial year |  | 71,668 |  | 70,439
Oil and gas assets [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | (29,648) |  |
At the end of the financial year |  | (31,543) |  | (29,648)
Oil and gas assets [member] | Land and buildings [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 701 |  |
At the end of the financial year |  | 671 |  | 701
Oil and gas assets [member] | Land and buildings [member] | Gross carrying amount [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 701 |  | 840
Disposals at written down value |  | (2) |  | (8)
Depreciation and amortisation |  | (28) |  | (67)
Completions and transfers | [2] | 0 |  |
Impairment losses |  |  |  | (64)
At the end of the financial year |  | 671 |  | 701
Oil and gas assets [member] | Land and buildings [member] | Historical Cost [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 1,745 |  |
At the end of the financial year |  | 1,743 |  | 1,745
Oil and gas assets [member] | Land and buildings [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | (1,044) |  |
At the end of the financial year |  | (1,072) |  | (1,044)
Oil and gas assets [member] | Transferred exploration and evaluation [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 777 |  |
At the end of the financial year |  | 1,032 |  | 777
Oil and gas assets [member] | Transferred exploration and evaluation [member] | Gross carrying amount [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 777 |  | 481
Disposals at written down value |  |  |  | 0
Depreciation and amortisation |  | (86) |  | (125)
Completions and transfers |  | 341 | [2] | 441
Impairment losses |  |  |  | (20)
At the end of the financial year |  | 1,032 |  | 777
Oil and gas assets [member] | Transferred exploration and evaluation [member] | Historical Cost [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 1,979 |  |
At the end of the financial year |  | 2,320 |  | 1,979
Oil and gas assets [member] | Transferred exploration and evaluation [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | (1,202) |  |
At the end of the financial year |  | (1,288) |  | (1,202)
Oil and gas assets [member] | Plant and equipment [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 23,589 |  |
At the end of the financial year |  | 27,070 |  | 23,589
Oil and gas assets [member] | Plant and equipment [member] | Gross carrying amount [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 23,589 |  | 23,057
Additions |  | (127) | [1] | 836
Disposals at written down value |  | 0 |  | (2)
Depreciation and amortisation |  | (1,779) |  | (3,764)
Completions and transfers |  | 5,391 | [2] | 4,496
Impairment losses |  |  |  | (1,028)
Transfer to assets held for sale |  | (4) | [3] | (6)
At the end of the financial year |  | 27,070 |  | 23,589
Oil and gas assets [member] | Plant and equipment [member] | Historical Cost [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | 50,272 |  |
At the end of the financial year |  | 55,533 |  | 50,272
Oil and gas assets [member] | Plant and equipment [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year |  | (26,683) |  |
At the end of the financial year |  | (28,463) |  | (26,683)
Oil and gas assets [member] | Projects in development [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year | [4] | 15,724 |  |
At the end of the financial year | [4] | 11,352 |  | 15,724
Oil and gas assets [member] | Projects in development [member] | Gross carrying amount [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year | [4] | 15,724 |  | 15,541
Additions | [4] | 2,447 | [1] | 5,759
Disposals at written down value | [4] | (47) |  |
Completions and transfers | [4] | (5,706) | [2] | (4,633)
Impairment losses | [4] |  |  | (328)
Transfer to assets held for sale | [4] | (1,066) | [3] | (615)
At the end of the financial year | [4] | 11,352 |  | 15,724
Oil and gas assets [member] | Projects in development [member] | Historical Cost [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year | [4] | 16,443 |  |
At the end of the financial year | [4] | 12,072 |  | 16,443
Oil and gas assets [member] | Projects in development [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |
Disclosure of detailed information about oil and gas properties [line items] |  |  |  |
At the beginning of the financial year | [4] | (719) |  |
At the end of the financial year | [4] | $ (720) |  | $ (719)
[1] | Includes $2,212 million of capital additions and $187 million of capitalised borrowing costs offset by $79 million relating to changes in restoration provision assumptions. The $127 million of additions reducing plant and equipment relates to changes in restoration provision assumptions.
[2] | Upon first oil in June 2024, the carrying value of the Sangomar project in projects in development has been transferred to plant and equipment.
[3] | Refer to Note B.4 for details of the sell-downs of the Scarborough Joint Venture.
[4] | Projects in development include the fair value ascribed to future phases of certain projects acquired through business combinations.

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