Working capital - Supplier Finance Arrangements (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]
Carrying amount that has been subject to SCF and presented in trade and other payables	$ 29,225	$ 31,921
Minimum days after invoice date
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]
Trade and other payables subject to SCF arrangements	0 days	0 days
Comparable trade and other payables that are not part of the arrangements	0 days	0 days
Minimum days after invoice date \| Greater China
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]
Comparable trade and other payables that are not part of the arrangements	0 days
Maximum days after invoice date
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]
Trade and other payables subject to SCF arrangements	150 days	150 days
Comparable trade and other payables that are not part of the arrangements	180 days	150 days
Maximum days after invoice date \| Greater China
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]
Comparable trade and other payables that are not part of the arrangements	240 days
Carrying amount that has been subject to SCF and presented in trade and other payables
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]
Carrying amount that has been subject to SCF and presented in trade and other payables	$ 1,092	$ 1,006
of which suppliers have received payment from finance provider
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]
Carrying amount that has been subject to SCF and presented in trade and other payables	$ 784	$ 644

- Definition

The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Classes of financial instruments [domain]; Financial assets; Derivatives [member]]

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