XML 534 R151.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Cash and cash equivalents - Additional information (Detail) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Disclosure of cash and cash equivalents [Line Items] |  |
Restricted cash and cash equivalents | $ 515 | $ 422
Repayment of third party borrowings | 194 | 156
Total for all subsidiaries |  |
Disclosure of cash and cash equivalents [Line Items] |  |
Restricted cash and cash equivalents | 1,150 | 553
Repayment of third party borrowings | $ 157 | $ 129

X
- Definition The amount of cash and cash equivalents whose use or withdrawal is restricted. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_RestrictedCashAndCashEquivalents
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Restricted cash and cash equivalent available to repay borrowings. + References No definition available. + Details
Name: | rio_RestrictedCashAndCashEquivalentAvailableToRepayBorrowings
Namespace Prefix: | rio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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