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Equity - Schedule of employee share compensation (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Disclosure of fair value measurement of equity [line items]
Annual fair value charge of equity settled plans	$ 43	$ 58	$ 79
Equity-settled plans
Disclosure of fair value measurement of equity [line items]
Annual fair value charge of equity settled plans	43	58	79
Executive share award plans
Disclosure of fair value measurement of equity [line items]
Annual fair value charge of equity settled plans	34	49	68
Executive share option plans
Disclosure of fair value measurement of equity [line items]
Annual fair value charge of equity settled plans	7	4	5
Savings Plans
Disclosure of fair value measurement of equity [line items]
Annual fair value charge of equity settled plans	$ 2	$ 5	$ 6

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The amount of expense from share-based payment transactions with employees. [Refer: Expense from share-based payment transactions]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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