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Financial instruments and risk management - Schedule of available undrawn committed bank facilities (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Jun. 30, 2023
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Disclosure of information about undrawn borrowing facilities [line items] |  |
Undrawn committed bank facilities | $ 3,250 | $ 3,375
Expiring within one year |  |
Disclosure of information about undrawn borrowing facilities [line items] |  |
Undrawn committed bank facilities | 625 | 125
Expiring between one and two years |  |
Disclosure of information about undrawn borrowing facilities [line items] |  |
Undrawn committed bank facilities | 1,040 | 625
Expiring after two years |  |
Disclosure of information about undrawn borrowing facilities [line items] |  |
Undrawn committed bank facilities | $ 1,585 | $ 2,625

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- Definition The amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 50 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_50_a&doctype=Standard -URIDate 2023-03-23 + Details
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