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Operating costs - Auditor fees (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022
Principal auditor |  |  |
Disclosure of operating costs [line items] |  |  |
Audit of these financial statements | $ 4.9 | $ 6.2 | $ 5.6
Audit of financial statements of subsidiaries | 8.2 | 6.8 | 8.1
Audit related assurance services(1) | 3.2 | 3.3 | 3.3
Total audit fees (Audit fees) | 16.3 | 16.3 | 17.0
Other assurance services (Audit related fees)(2) | 1.7 | 1.4 | 0.9
Auditors remuneration, Total | 18.0 | 17.7 | 17.9
Other than principal auditor |  |  |
Disclosure of operating costs [line items] |  |  |
Total audit fees (Audit fees) | $ 0.1 | $ 0.1 | $ 0.2

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- Definition Audit related assurance services, principally in respect of reporting under section 404 of US Sarbanes-Oxley Act and the review of the interim financial information. + References No definition available. + Details
Name: | deo_AuditRelatedAssuranceServices
Namespace Prefix: | deo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Audit fee paid to the group's principal auditor for the audit of the group consolidated financial statements. + References No definition available. + Details
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Namespace Prefix: | deo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Audit fee paid to the group's principal auditor for the audit of the financial statements of subsidiaries. + References No definition available. + Details
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Balance Type: | debit
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- Definition Other assurance services comprise the aggregate fees for assurance and related services that are related to the performance of the audit or review of the financial statements and are not reported under total audit fees. + References No definition available. + Details
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Namespace Prefix: | deo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Additional information about operating costs. + References No definition available. + Details
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Namespace Prefix: | deo_
Data Type: | xbrli:stringItemType
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- Definition The amount of fees paid or payable to the entity's auditors. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
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Period Type: | duration

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- Definition The amount of fees paid or payable to the entity's auditors for auditing services. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |