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Operating costs - Auditor fees (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Principal auditor
Disclosure of operating costs [line items]
Audit of these financial statements	$ 4.9	$ 6.2	$ 5.6
Audit of financial statements of subsidiaries	8.2	6.8	8.1
Audit related assurance services(1)	3.2	3.3	3.3
Total audit fees (Audit fees)	16.3	16.3	17.0
Other assurance services (Audit related fees)(2)	1.7	1.4	0.9
Auditors remuneration, Total	18.0	17.7	17.9
Other than principal auditor
Disclosure of operating costs [line items]
Total audit fees (Audit fees)	$ 0.1	$ 0.1	$ 0.2

X

- Definition

Audit related assurance services, principally in respect of reporting under section 404 of US Sarbanes-Oxley Act and the review of the interim financial information.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Audit fee paid to the group's principal auditor for the audit of the group consolidated financial statements.

+ References

No definition available.

+ Details

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

X

- Definition

Audit fee paid to the group's principal auditor for the audit of the financial statements of subsidiaries.

+ References

No definition available.

+ Details

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Namespace Prefix:	deo_
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Balance Type:	debit
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X

- Definition

Other assurance services comprise the aggregate fees for assurance and related services that are related to the performance of the audit or review of the financial statements and are not reported under total audit fees.

+ References

No definition available.

+ Details

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Namespace Prefix:	deo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

Additional information about operating costs.

+ References

No definition available.

+ Details

Name:	deo_DisclosureOfOperatingCostsLineItems
Namespace Prefix:	deo_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

The amount of fees paid or payable to the entity's auditors.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2023-03-23

+ Details

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

X

- Definition

The amount of fees paid or payable to the entity's auditors for auditing services.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2023-03-23

+ Details

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X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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