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Dividends - Summary of dividends paid (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of Dividends [Line Items] |  |  |
Dividends payable during the year | $ 7,025 | $ 6,466 | $ 11,716
Net movement of unclaimed dividends in the year | 0 | 4 | 11
Dividends paid during the year | 7,025 | 6,470 | 11,727
– Rio Tinto plc | Final Dividends |  |  |
Disclosure of Dividends [Line Items] |  |  |
Previous year dividend payable | 3,185 | 2,875 | 5,024
– Rio Tinto plc | Special Dividends |  |  |
Disclosure of Dividends [Line Items] |  |  |
Previous year dividend payable | 0 | 0 | 747
– Rio Tinto plc | Interim Dividends |  |  |
Disclosure of Dividends [Line Items] |  |  |
Interim dividend payable | 2,238 | 2,147 | 3,162
– Rio Tinto Limited | Final Dividends |  |  |
Disclosure of Dividends [Line Items] |  |  |
Previous year dividend payable | 936 | 815 | 1,597
– Rio Tinto Limited | Special Dividends |  |  |
Disclosure of Dividends [Line Items] |  |  |
Previous year dividend payable | 0 | 0 | 237
– Rio Tinto Limited | Interim Dividends |  |  |
Disclosure of Dividends [Line Items] |  |  |
Interim dividend payable | $ 666 | $ 629 | $ 949

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- Definition The amount of dividends recognised as distributions to owners of the parent. [Refer: Parent [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of dividends relating to the current year, recognised as distributions to owners of the parent. [Refer: Parent [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of dividends relating to prior years, recognised as distributions to owners of the parent. [Refer: Parent [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard -URIDate 2024-03-27 + Details
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