Other Equity - Summary of Reserves (Detail) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Disclosure of analysis of other comprehensive income by item [abstract]
Common control reserve	$ (1,603)	$ (1,603)	$ (1,603)
Employee share awards reserve	251	188	166
Cash flow hedge reserve	(76)	(16)	27
Cost of hedging reserve	(11)	4	(7)
Foreign currency translation reserve	(16)	(14)	(14)
Equity investments reserve	14	2	(21)
Non-controlling interest contribution reserve	1,503	1,437	1,437
Total reserves	$ 62	$ (2)	$ (15)

Common control reserves.

No definition available.

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- Definition

Cost of hedging reserve.

+ References

No definition available.

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- Definition

The non-controlling interest contribution reserve represents the excess of consideration received over the book value of net assets attributable to equity instruments when acquired by non-controlling interests.

+ References

No definition available.

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- References

No definition available.

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- Definition

A component of equity representing reserves within equity, not including retained earnings. [Refer: Retained earnings]

+ References

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- Definition

A component of equity representing the accumulated portion of gain (loss) on a hedging instrument that is determined to be an effective hedge for cash flow hedges. [Refer: Cash flow hedges [member]]

+ References

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- Definition

A component of equity representing exchange differences on translation of financial statements recognised in other comprehensive income and accumulated in equity. [Refer: Other comprehensive income]

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- Definition

A component of equity resulting from share-based payments.

+ References

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