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Financial instruments and risk management - Fair value measurement - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022
Business combinations |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Contingent consideration payment period | 6 years |  |
Level 3 |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Other financial liabilities | $ 443 | $ 665 |
Movement in financial assets - other | 84 | 24 |
Zacapa put option | Level 3 |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Other financial liabilities | 198 | 274 | $ 261
Contingent consideration recognised on acquisition of businesses |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Other financial liabilities | 153 | 279 |
Contingent consideration recognised on acquisition of businesses | Volume, measurement input |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Increase (decrease) in fair value liability due to increase in observable input | $ 25 |  |
Sensitivity analysis, percentage of possible increase in unobservable input, liabilities | 10.00% |  |
Sensitivity analysis, percentage of possible decrease in unobservable input, liabilities | 20.00% |  |
Increase (decrease) in fair value liability due to decrease in observable input | $ 70 |  |
Contingent consideration recognised on acquisition of businesses | Cash flows, measurement input |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Increase (decrease) in fair value liability due to increase in observable input | $ 30 |  |
Sensitivity analysis, percentage of possible increase in unobservable input, liabilities | 10.00% |  |
Sensitivity analysis, percentage of possible decrease in unobservable input, liabilities | 10.00% |  |
Increase (decrease) in fair value liability due to decrease in observable input | $ 30 |  |
Contingent consideration recognised on acquisition of businesses | Business combinations | Undiscounted amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Other financial liabilities | 273 |  |
Contingent consideration recognised on acquisition of businesses | Level 3 |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Other financial liabilities | 245 | 391 | $ 449
Contingent consideration recognised on acquisition of businesses | Level 3 | Don Papa rum |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Other financial liabilities | $ 92 | 112 |
Industrias Licoreras de Guatemala |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Proportion of ownership interest in investment by external party | 50.00% |  |
Industrias Licoreras de Guatemala | Zacapa put option | Level 3 |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Other financial liabilities | $ 198 | $ 274 |

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