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Financial instruments and risk management - Credit risk - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023
Disclosure of detailed information about financial instruments [abstract]
Maximum exposure to credit risk	$ 5,221	$ 5,849
Credit support obligations	$ (14)	$ (19)

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- Definition

Credit support obligations.

+ References

No definition available.

+ Details

Name:	deo_CreditSupportObligations
Namespace Prefix:	deo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

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

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- Definition

The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 35K
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_35K_a&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_MaximumExposureToCreditRisk
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant