XML 484 R101.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Dividends - Additional information (Detail) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 19, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of Dividends [Line Items] |  |  |  |
Decrease to franking account balance |  | $ 358 |  |
– Rio Tinto Limited |  |  |  |
Disclosure of Dividends [Line Items] |  |  |  |
Franking credits available |  | $ 9,177 | $ 8,734 | $ 7,246
– Rio Tinto Limited | Final Dividends |  |  |  |
Disclosure of Dividends [Line Items] |  |  |  |
Franked final dividend percentage |  | 30.00% | 30.00% | 30.00%
Potential ordinary share transactions |  |  |  |
Disclosure of Dividends [Line Items] |  |  |  |
Final dividends per share: proposed in the announcement of the results for the year (in usd per share) | $ 2.250 |  |  |
Dividends payment proposed in the announcement of the results for the year | $ 3,652 |  |  |

X
- Definition The amount of dividends proposed or declared after the reporting period but before financial statements are authorised for issue. Such dividends are not recognised as a liability at the end of the reporting period because no obligation exists at that time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 10 -IssueDate 2024-01-01 -Paragraph 13 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=10&code=ifrs-tx-2024-en-r&anchor=para_13&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 137 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_137_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount, per share, of dividends proposed or declared before financial statements were authorised for issue but not recognised as distribution to owners. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 137 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_137_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of Dividends [Line Items] + References No definition available. + Details
Name: | rio_DisclosureOfDividendsLineItems
Namespace Prefix: | rio_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition In this arrangement the shareholder is able to reduce the tax paid on the final dividend by an amount equal to the tax imputation credits. + References No definition available. + Details
Name: | rio_FrankedFinalDividendPercentage
Namespace Prefix: | rio_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Increase (Decrease) To Retained Profits And Reserves That Could Be Distributed As Fully Franked Dividends + References No definition available. + Details
Name: | rio_IncreaseDecreaseToRetainedProfitsAndReservesThatCouldBeDistributedAsFullyFrankedDividends
Namespace Prefix: | rio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Retained Profits And Reserves That Could Be Distributed As Fully Franked Dividends + References No definition available. + Details
Name: | rio_RetainedProfitsAndReservesThatCouldBeDistributedAsFullyFrankedDividends
Namespace Prefix: | rio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=rio_RioTintoLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rio_DividendTypeAxis=rio_FinalDividendsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_PotentialOrdinaryShareTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |