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Close-down, restoration and environmental provisions - Sensitivity analysis on provisions (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Bottom of range |  |
Disclosure of other provisions [Line Items] |  |
Risk free interest rate on provisions | 1.00% |
Top of range |  |
Disclosure of other provisions [Line Items] |  |
Risk free interest rate on provisions | 3.00% |
Close down and restoration/ environmental |  |
Disclosure of other provisions [Line Items] |  |
Total increase/(decrease) in provision | $ (235) | $ (168)
Discount rate decreased to 1.0% | Close down and restoration/ environmental |  |
Disclosure of other provisions [Line Items] |  |
Capitalised within "Property, plant and equipment" | 3,300 | 2,300
Charged/(credited) to the income statement | 400 | 300
Total increase/(decrease) in provision | 3,700 | 2,600
Discount rate increased to 3.0% | Close down and restoration/ environmental |  |
Disclosure of other provisions [Line Items] |  |
Capitalised within "Property, plant and equipment" | (900) | (1,800)
Charged/(credited) to the income statement | (100) | (300)
Total increase/(decrease) in provision | $ (1,000) | $ (2,100)

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The increase (decrease) in other provisions resulting from a change in discount rate. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2024-01-01 -Paragraph 84 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2024-en-r&anchor=para_84_e&doctype=Standard -URIDate 2024-03-27 + Details
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