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Revenue by destination and product - Consolidated sales revenue by product (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of products and services [line items] |  |  |
Revenue from contracts with customers | $ 54,202 | $ 53,721 | $ 56,074
Other revenue | (544) | 320 | (520)
Consolidated sales revenue | 53,658 | 54,041 | 55,554
Iron ore |  |  |
Disclosure of products and services [line items] |  |  |
Revenue from contracts with customers | 31,334 | 33,383 | 33,068
Other revenue | (530) | 389 | (267)
Consolidated sales revenue | 30,804 | 33,772 | 32,801
Aluminium, alumina and bauxite |  |  |
Disclosure of products and services [line items] |  |  |
Revenue from contracts with customers | 12,947 | 12,039 | 13,955
Other revenue | 48 | (63) | (165)
Consolidated sales revenue | 12,995 | 11,976 | 13,790
Copper - Rio Tinto Kennecott |  |  |
Disclosure of products and services [line items] |  |  |
Revenue from contracts with customers | 4,791 | 3,219 | 3,276
Other revenue | (63) | (1) | (80)
Consolidated sales revenue | 4,728 | 3,218 | 3,196
Industrial minerals (comprising titanium dioxide slag, borates and salt) |  |  |
Disclosure of products and services [line items] |  |  |
Revenue from contracts with customers | 2,678 | 2,806 | 2,685
Other revenue | (3) | (8) | (16)
Consolidated sales revenue | 2,675 | 2,798 | 2,669
Gold |  |  |
Disclosure of products and services [line items] |  |  |
Revenue from contracts with customers | 788 | 470 | 564
Other revenue | 9 | 6 | 9
Consolidated sales revenue | 797 | 476 | 573
Diamonds |  |  |
Disclosure of products and services [line items] |  |  |
Revenue from contracts with customers | 279 | 444 | 816
Other revenue | 0 | 0 | 0
Consolidated sales revenue | 279 | 444 | 816
Other products and freight services |  |  |
Disclosure of products and services [line items] |  |  |
Revenue from contracts with customers | 1,385 | 1,360 | 1,710
Other revenue | (5) | (3) | (1)
Consolidated sales revenue | $ 1,380 | $ 1,357 | $ 1,709

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