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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 |  |  |
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Jun. 30, 2021 GBP (£) transaction instalment | Jun. 30, 2022 GBP (£) | Sep. 30, 2020 GBP (£) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 GBP (£)
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Cash transferred | £ 358 | £ 88 |  |  | £ 27
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 |  |  |  |
Deferred consideration payable |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Deferred/contingent consideration payable | £ 2 | 4 |  |  | £ 0
Other businesses acquired |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Cash transferred | 95 | 26 |  |  |
Deferred consideration paid for subsidiaries | (1) |  |  |  |
Other businesses acquired | Deferred consideration payable |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Deferred/contingent consideration payable | 2 | 4 |  |  |
Maximum | Other businesses acquired |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Contingent consideration | £ 86 | £ 18 |  |  |
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 |

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- Definition The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B64 -Subparagraph f -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
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