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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.