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Biological assets - Narrative (Details) - numberOfPlant numberOfPlant in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021
Disclosure of detailed information about biological assets [line items] |  |
Number of plant | 33 | 20
Maximum |  |
Disclosure of detailed information about biological assets [line items] |  |
Agave plantation maturity | 8 years |

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- Definition Agave Plantation Maturity + References No definition available. + Details
Name: | deo_AgavePlantationMaturity
Namespace Prefix: | deo_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Number of plant + References No definition available. + Details
Name: | deo_NumberOfPlant
Namespace Prefix: | deo_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |