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Acquisition and sale of businesses and brands and purchase of non-controlling interests - Prior year acquisitions (Details) £ in Millions, $ in Millions | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2021 GBP (£) transaction instalment | Jun. 30, 2023 GBP (£) | Jun. 30, 2022 GBP (£) | Mar. 31, 2022 GBP (£) | Sep. 30, 2020 GBP (£) | Sep. 30, 2020 USD ($)
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Cash transferred | £ 358 | £ 316 | £ 88 |  |  |
Number of transactions completed during the period, business combinations | transaction | 3 |  |  |  |  |
Number of transactions completed during the period including provisions for contingent consideration, business combination | instalment | 2 |  |  |  |  |
Other businesses acquired |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Cash transferred | £ 95 | 98 | 26 |  |  |
Deferred consideration paid for subsidiaries | 1 |  |  |  |  |
Maximum | Other businesses acquired |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Contingent consideration | 86 |  | 18 |  |  |
21Seeds |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Percentage of interest acquired |  |  |  | 100.00% |  |
Cash transferred |  |  |  | £ 62 |  |
21Seeds | Maximum |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Contingent consideration |  |  |  | £ 61 |  |
Aviation Gin and Davos Brands |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Cash transferred |  |  |  |  | £ 263 | $ 337
Aviation Gin and Davos Brands | Maximum |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Contingent consideration |  |  |  |  | £ 214 | $ 275
Deferred consideration payable |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Deferred/contingent consideration payable | 2 | 5 | 4 |  |  |
Deferred consideration payable | Other businesses acquired |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Deferred/contingent consideration payable | £ 2 | £ 1 | £ 4 |  |  |

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