Name:	deo_IncreaseDecreaseThroughNetExchangeDifferencesProvisionsOtherThanRecognisedLiabilitiesDefinedBenefitPlan
Namespace Prefix:	deo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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
Balance Type:	credit
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
Balance Type:	credit
Period Type:	duration

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
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 54
-Subparagraph l
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_54_l&doctype=Standard
-URIDate 2025-03-27

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

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

- References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

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

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

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

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