XML 505 R122.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Intangible assets - Summary of useful lives of intangible assets (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2024
Trademarks | Bottom of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 14 years
Trademarks | Top of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 20 years
Patented and non-patented technology | Bottom of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 10 years
Patented and non-patented technology | Top of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 20 years
Power contracts/water rights | Bottom of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 2 years
Power contracts/water rights | Top of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 45 years
Other purchase and customer contracts | Bottom of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 5 years
Other purchase and customer contracts | Top of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 15 years
Internally generated intangible assets and computer software | Bottom of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 2 years
Internally generated intangible assets and computer software | Top of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 5 years
Other intangible assets | Bottom of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 2 years
Other intangible assets | Top of range |
Disclosure of detailed information about intangible assets [Line Items] |
Useful life measured as period of time, intangible assets other than goodwill | 20 years

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfIntangibleAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful life, measured as period of time, used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2024-01-01 -Paragraph 118 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2024-en-r&anchor=para_118_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis=rio_TrademarkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis=rio_PatentedAndNonpatentedTechnologyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis=rio_PowerContractsWaterRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis=rio_OtherPurchaseAndCustomerContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis=ifrs-full_ComputerSoftwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis=ifrs-full_OtherIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |