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Information by business segment and geographic area (Details 2) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
IfrsStatementLineItems [Line Items] |  |  |  |  |
Investments in associates and joint ventures | $ 3,715 |  | $ 3,715 |  | $ 1,872
Property, plant and equipment and intangibles | 54,777 |  | 54,777 |  | 60,027
Capital expenditures |  |  |  |  |
Sustaining capital (i) | 1,000 | $ 832 | 2,028 | $ 1,636 |
Project execution | 328 | 376 | 695 | 702 |
Total capital expenditures | 1,328 | 1,208 | 2,723 | 2,338 |
Iron Ore Solutions [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Investments in associates and joint ventures | 1,320 |  | 1,320 |  | 1,349
Property, plant and equipment and intangibles | 34,598 |  | 34,598 |  | 38,376
Capital expenditures |  |  |  |  |
Sustaining capital (i) | 613 | 472 | 1,294 | 984 |
Project execution | 293 | 255 | 613 | 491 |
Total capital expenditures | 906 | 727 | 1,907 | 1,475 |
Energy Transition Metals [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Investments in associates and joint ventures | 1,910 |  | 1,910 |  |
Property, plant and equipment and intangibles | 17,483 |  | 17,483 |  | 18,341
Capital expenditures |  |  |  |  |
Sustaining capital (i) | 372 | 326 | 700 | 589 |
Project execution | 33 | 95 | 72 | 167 |
Total capital expenditures | 405 | 421 | 772 | 756 |
Other [Member] |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |
Investments in associates and joint ventures | 485 |  | 485 |  | 523
Property, plant and equipment and intangibles | 2,696 |  | 2,696 |  | $ 3,310
Capital expenditures |  |  |  |  |
Sustaining capital (i) | 15 | 34 | 34 | 63 |
Project execution | 2 | 26 | 10 | 44 |
Total capital expenditures | $ 17 | $ 60 | $ 44 | $ 107 |

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