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Business combinations - Summary Of Fair Value Of Identifiable Assets And Liabilities Acquired (Parenthetical) (Detail) $ in Millions | 12 Months Ended
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Jun. 30, 2023 USD ($) shares | Jun. 30, 2023 shares $ / shares
Disclosure of detailed information about business combination [line items] |  |
Loss transferred to initial carrying amount of hedged item | $ | $ 35 |
OZ Minerals Limited [member] |  |
Disclosure of detailed information about business combination [line items] |  |
Loss transferred to initial carrying amount of hedged item | $ | $ 35 |
Consideration paid per share | $ / shares |  | $ 26.5
Dividends paid, ordinary shares per share | $ / shares |  | $ 1.75
Average foreign exchange rate | 0.6681 |
Number of instruments or interests issued or issuable | shares | 337,314,920 | 337,314,920

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- Definition The average exchange rate used by the entity. Exchange rate is the ratio of exchange for two currencies. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The number of instruments or interests issued or issuable at acquisition date for equity interests of the acquirer transferred as consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2023-01-01 -Paragraph B64 -Subparagraph f -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_f_iv&doctype=Appendix&subtype=B -URIDate 2023-03-23 + Details
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