XML 300 R4.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Group statement of comprehensive income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	[1]	Dec. 31, 2018	Dec. 31, 2017	[1]
Statement of comprehensive income [abstract]
Currency translation gain (charge)	$ (29)		$ (382)	$ 310
Reclassification of cost of hedging to income statement and recognised within finance costs			$ 3
[1] Refer to note 1(d).

X

- References

No definition available.

+ Details

Name:	ifrs-full_StatementOfComprehensiveIncomeAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the amount of exchange differences arising on the translation of the net assets of entities with functional currencies other than the US dollar are recognised directly in the currency translation reserve. These translation differences are shown in the statement of comprehensive income, with the exception of translation adjustments relating to Rio Tinto Limited’s share capital which are shown in the statement of changes in equity.

+ References

No definition available.

+ Details

Name:	rio_CurrencyTranslationGainChargeArisingOnDualListedCompaniesShareCapital
Namespace Prefix:	rio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Reclassification of cost of hedging to income statement and recognised within finance costs.

+ References

No definition available.

+ Details

Name:	rio_ReclassificationOfCostOfHedgingToIncomeStatementAndRecognisedWithinFinanceCosts
Namespace Prefix:	rio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration