Name:	deo_IncreaseDecreaseThroughNetExchangeDifferencesProvisionsOtherThanRecognisedLiabilitiesDefinedBenefitPlan
Namespace Prefix:	deo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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The increase (decrease) in provisions other than recognised liabilities for defined benefit plans resulting from transfers between balance sheet items. [Refer:ProvisionsOtherThanRecognisedLiabilitiesDefinedBenefitPlan ]

No definition available.

Name:	deo_IncreaseDecreaseThroughTransfersProvisionsOtherThanRecognisedLiabilitiesDefinedBenefitPlan
Namespace Prefix:	deo_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Total additional provision made increasing and unused provision reversed (decreasing) provisions other than recognised liabilities for defined benefit plans. [Refer:ProvisionsOtherThanRecognisedLiabilitiesDefinedBenefitPlan ]

No definition available.

Name:	deo_ProvisionChargedReleasedToProfitAndLossProvisionsOtherThanRecognisedLiabilitiesDefinedBenefitPlan
Namespace Prefix:	deo_
Data Type:	xbrli:monetaryItemType
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No definition available.

Name:	deo_ProvisionUsedProvisionsOtherThanRecognizedLiabilitiesDefinedBenefitPlan
Namespace Prefix:	deo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of current provisions, including provisions for employee benefits. [Refer: Provisions]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 54
-Subparagraph l
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_l&doctype=Standard
-URIDate 2021-03-24

Name:	ifrs-full_CurrentProvisions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The decrease in other provisions resulting from the loss of control of a subsidiary. [Refer: Other provisions]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 37
-IssueDate 2021-01-01
-Paragraph 84
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard
-URIDate 2021-03-24

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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.

No definition available.

Name:	ifrs-full_DisclosureOfOtherProvisionsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The amount of expense recognised due to the unwinding of the discount on provisions other than provisions from employee benefits, resulting from the effect of the passage of time. [Refer: Other provisions]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2021-03-24

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

The amount of non-current provisions, including provisions for employee benefits. [Refer: Provisions]

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

The amount of liabilities of uncertain timing or amount, including provisions for employee benefits.