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Equity - Schedule of transactions on the executive share award plans (Details) - Executive share award plans - shares shares in Millions | 12 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Balance outstanding at beginning of period (in shares) | 5.2 | 5.3 | 5.6
Granted (in shares) | 1.7 | 2.1 | 2.1
Awarded (in shares) | (1.1) | (1.1) | (1.2)
Forfeited (in shares) | (0.9) | (1.1) | (1.2)
Balance outstanding at end of period (in shares) | 4.9 | 5.2 | 5.3

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- Definition The number of other equity instruments (ie other than share options) forfeited in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard -URIDate 2022-03-24 + Details
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