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v3.20.2

Label | Element | Value
--- | --- | ---
Restated Opening Equity Balance After Adjustment For New Accounting Standards | rio_RestatedOpeningEquityBalanceAfterAdjustmentForNewAccountingStandards | $ 49,708,000,000 |
Adjustment For Transition To New Accounting Standards | rio_AdjustmentForTransitionToNewAccountingStandards | (115,000,000) | [1]
Equity attributable to owners of parent [member] |  |  |
Restated Opening Equity Balance After Adjustment For New Accounting Standards | rio_RestatedOpeningEquityBalanceAfterAdjustmentForNewAccountingStandards | 43,573,000,000 |
Adjustment For Transition To New Accounting Standards | rio_AdjustmentForTransitionToNewAccountingStandards | 113,000,000 | [1]
Other reserves [member] |  |  |
Restated Opening Equity Balance After Adjustment For New Accounting Standards | rio_RestatedOpeningEquityBalanceAfterAdjustmentForNewAccountingStandards | 8,661,000,000 |
Issued capital [member] |  |  |
Restated Opening Equity Balance After Adjustment For New Accounting Standards | rio_RestatedOpeningEquityBalanceAfterAdjustmentForNewAccountingStandards | 3,688,000,000 |
Non-controlling interests [member] |  |  |
Restated Opening Equity Balance After Adjustment For New Accounting Standards | rio_RestatedOpeningEquityBalanceAfterAdjustmentForNewAccountingStandards | 6,135,000,000 |
Adjustment For Transition To New Accounting Standards | rio_AdjustmentForTransitionToNewAccountingStandards | 2,000,000 | [1]
Share premium [member] |  |  |
Restated Opening Equity Balance After Adjustment For New Accounting Standards | rio_RestatedOpeningEquityBalanceAfterAdjustmentForNewAccountingStandards | 4,312,000,000 |
Retained earnings [member] |  |  |
Restated Opening Equity Balance After Adjustment For New Accounting Standards | rio_RestatedOpeningEquityBalanceAfterAdjustmentForNewAccountingStandards | 26,912,000,000 |
Adjustment For Transition To New Accounting Standards | rio_AdjustmentForTransitionToNewAccountingStandards | $ 113,000,000 | [1]
[1] | This represents the impact to the Group of transitioning to the new accounting pronouncements; IFRS 16 ‘Leases’ and IFRIC 23 'Uncertainty over Income Tax Treatments' on 1 January 2019.

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- Definition Adjustment for transition to new accounting standards. + References No definition available. + Details
Name: | rio_AdjustmentForTransitionToNewAccountingStandards
Namespace Prefix: | rio_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Restated opening equity balance after adjustment for new accounting standards. + References No definition available. + Details
Name: | rio_RestatedOpeningEquityBalanceAfterAdjustmentForNewAccountingStandards
Namespace Prefix: | rio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_EquityAttributableToOwnersOfParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_OtherReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_IssuedCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_NoncontrollingInterestsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_SharePremiumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |