[Line Items] for Disclosure Of Quantitative Information About Leases [Table]

No definition available.

Name:	deo_DisclosureOfQuantitativeInformationAboutLeasesLineItems
Namespace Prefix:	deo_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Expense Relating To Short Term Leases And To Leases Of Low Value Assets For Which Recognition Exemption Has Been Used

+ References

No definition available.

+ Details

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

- Definition

The cash outflow for leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2020-01-01
-Paragraph 53
-Subparagraph g
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_g&doctype=Standard
-URIDate 2020-01-01

+ Details

Name:	ifrs-full_CashOutflowForLeases
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of the expense relating to variable lease payments not included in the measurement of lease liabilities. Variable lease payments are the portion of payments made by a lessee to a lessor for the right to use an underlying asset during the lease term that varies because of changes in facts or circumstances occurring after the commencement date, other than the passage of time. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2020-01-01
-Paragraph 53
-Subparagraph e
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2020-en-r&anchor=para_53_e&doctype=Standard
-URIDate 2020-01-01

+ Details

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

- Definition

The amount of expense recognised on rental activities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2020-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_85&doctype=Standard
-URIDate 2020-01-01

+ Details

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

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=deo_PlantAndEquipmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=deo_AssetClassesOtherThanPlantAndEquipmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Leases - Amounts recognised in the consolidated income statement - Narrative (Details) - GBP (£) £ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Disclosure Of Quantitative Information About Leases [Line Items]
Expenses in respect of leases of low value assets and short term leases	£ 28	£ 39
Expenses in respect of variable lease payments	3	11
Total cash outflow for leases	£ 179	£ 180
Plant and machinery
Disclosure Of Quantitative Information About Leases [Line Items]
Operating lease expenses			£ 19
Other assets (mainly properties)
Disclosure Of Quantitative Information About Leases [Line Items]
Operating lease expenses			£ 101