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Financial instruments and risk management - Schedule of financial assets and liabilities measured at fair value (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023
Valuation techniques based on observable market input (Level 2)
Disclosure of detailed information about financial instruments [line items]
Derivative assets	$ 497	$ 748
Derivative liabilities	(486)	(556)
Financial assets/(liabilities) at fair value	11	192
Valuation techniques based on unobservable market input (Level 3)
Disclosure of detailed information about financial instruments [line items]
Financial assets/(liabilities) at fair value	(110)	(416)
Financial assets - other	333	249
Financial liabilities - other	$ (443)	$ (665)

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- Definition

Financial assets liabilities at fair value.

+ References

No definition available.

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- Definition

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

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- Definition

The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

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- Definition

The amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets]

+ References

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- Definition

The amount of financial liabilities that the entity does not separately disclose in the same statement or note. [Refer: Financial liabilities]

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