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Equity - Schedule of movements in own shares (Details) - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |
Beginning balance | [1] | $ (11,709) | [2] | $ (11,511) | [2] | $ (11,719) |
Ending balance |  | $ (12,070) |  | $ (11,709) | [1],[2] | $ (11,511) | [1],[2]
Own shares |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |
Beginning balance (in shares) |  | 216 |  | 219 |  | 223 |
Beginning balance | [1] | $ 2,286 |  | $ 2,223 |  | $ 2,609 |
Other(1) (in shares) |  |  |  | 0 |  | 0 |
Retranslation impact of opening balances(1) |  |  |  | $ 93 |  | $ (334) |
Ending balance (in shares) |  | 212 |  | 216 |  | 219 |
Ending balance |  | $ 2,250 |  | $ 2,286 | [1] | $ 2,223 | [1]
Own shares | Share trust arrangements |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |
Increase (decrease) due to share based payment transactions (in shares) |  | (2) |  | (1) |  | (2) |
Increase (decrease) due to share based payment transactions |  | $ (19) |  | $ (15) |  | $ (31) |
Own shares | Shares used to satisfy options |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |
Increase (decrease) due to share based payment transactions (in shares) |  | (2) |  | (2) |  | (2) |
Increase (decrease) due to share based payment transactions |  | $ (17) |  | $ (15) |  | $ (21) |
Own shares | Share buyback programme |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |
Number of shares purchased - share buyback programme (in shares) |  | 28 |  | 38 |  | 61 |
Shares purchased - share buyback programme |  | $ 987 |  | $ 1,673 |  | $ 2,985 |
Shares cancelled (number) |  | (28) |  | (38) |  | (61) |
Shares cancelled |  | $ (987) |  | $ (1,673) |  | $ (2,985) |
[1] | (1) See pages 238-240 for an explanation under Accounting information and policies.
[2] | (1) See pages 238-240 for an explanation under Accounting information and policies.

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