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Property, plant, and equipment (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | $ 48,396 |
Balance at end of year | 44,582 |
Land and buildings [member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 10,119 | $ 8,913
Disposals | (5) | (8)
Depreciation, depletion and amortization | (225) | (224)
Translation adjustment | (1,139) | 607
Transfers | 314 | 772
Balance at end of year | 9,064 | 10,060
Land and buildings [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 15,956 | 17,700
Land and buildings [member] | Accumulated depreciation, amortisation and impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Accumulated depreciation | (6,892) | (7,640)
Facilities [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 9,239 | 8,042
Disposals | (16) | (8)
Depreciation, depletion and amortization | (276) | (250)
Translation adjustment | (1,098) | 608
Transfers | 504 | 586
Balance at end of year | 8,353 | 8,978
Facilities [Member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 13,724 | 14,330
Facilities [Member] | Accumulated depreciation, amortisation and impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Accumulated depreciation | (5,371) | (5,352)
Machinery [member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 4,450 | 4,984
Disposals | (7) | (5)
Depreciation, depletion and amortization | (351) | (364)
Translation adjustment | (397) | 229
Transfers | 284 | 371
Balance at end of year | 3,979 | 5,215
Machinery [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 9,706 | 12,418
Machinery [member] | Accumulated depreciation, amortisation and impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Accumulated depreciation | (5,727) | (7,203)
Tangible exploration and evaluation assets [member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 6,925 | 7,112
Assets retirement obligation | (147) | 99
Depreciation, depletion and amortization | (226) | (241)
Translation adjustment | (517) | 302
Transfers | 158 | 46
Balance at end of year | 6,193 | 7,318
Tangible exploration and evaluation assets [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 14,734 | 16,285
Tangible exploration and evaluation assets [member] | Accumulated depreciation, amortisation and impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Accumulated depreciation | (8,541) | (8,967)
Railway Equipment [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 2,612 | 2,475
Disposals | (3) | (5)
Depreciation, depletion and amortization | (81) | (81)
Translation adjustment | (332) | 198
Transfers | 50 | 47
Balance at end of year | 2,246 | 2,634
Railway Equipment [Member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 3,917 | 4,455
Railway Equipment [Member] | Accumulated depreciation, amortisation and impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Accumulated depreciation | (1,671) | (1,821)
Right-of-use assets [member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 1,359 | 1,455
Additions (i) | (4) | 19
Depreciation, depletion and amortization | (93) | (91)
Translation adjustment |  | 31
Impairment | (37) |
Balance at end of year | 1,225 | 1,414
Right-of-use assets [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 2,089 | 2,196
Right-of-use assets [member] | Accumulated depreciation, amortisation and impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Accumulated depreciation | (864) | (782)
Other property, plant and equipment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 2,484 | 2,632
Disposals | (1) | (1)
Depreciation, depletion and amortization | (164) | (163)
Translation adjustment | (220) | 153
Transfers | 127 | 166
Balance at end of year | 2,226 | 2,787
Other property, plant and equipment [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 4,929 | 5,903
Other property, plant and equipment [member] | Accumulated depreciation, amortisation and impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Accumulated depreciation | (2,703) | (3,116)
Construction in progress [member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 11,208 | 9,325
Additions (i) | 2,749 | 2,430
Disposals | (70) | (53)
Translation adjustment | (1,154) | 546
Transfers | (1,437) | (1,988)
Balance at end of year | 11,296 | 10,260
Construction in progress [member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 11,296 | 10,260
Total Property Plant And Equipment [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at beginning of year | 48,396 | 44,938
Additions (i) | 2,745 | 2,449
Disposals | (102) | (80)
Assets retirement obligation | (147) | 99
Depreciation, depletion and amortization | (1,416) | (1,414)
Translation adjustment | (4,894) | 2,674
Balance at end of year | 44,582 | 48,666
Total Property Plant And Equipment [Member] | Gross carrying amount [member] |  |
IfrsStatementLineItems [Line Items] |  |
Property, plant and equipment, cost | 76,351 | 83,547
Total Property Plant And Equipment [Member] | Accumulated depreciation, amortisation and impairment [member] |  |
IfrsStatementLineItems [Line Items] |  |
Accumulated depreciation | $ (31,769) | $ (34,881)

X
- Definition The amount of depreciation and amortisation expense. Depreciation and amortisation are the systematic allocations of depreciable amounts of assets over their useful lives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 28 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_28_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 23 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_23_e&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B13 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B13_d&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_102&doctype=Standard -URIDate 2023-03-23 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_99&doctype=Standard -URIDate 2023-03-23 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 104 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_104&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 75 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_75_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause viii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_viii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount recognised resulting from the write-down of property, plant and equipment to its recoverable amount or reversals of those write-downs. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_98_a&doctype=Standard -URIDate 2023-03-23 + Details
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