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Dividends and other reserves - Schedule of dividends (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended		12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Share Capital, Reserves And Other Equity Interest [Abstract]
Final dividend for the year ended 30 June 2024 of 62.98 cents per share (2023 - 59.98 cents)	$ 1,399	$ 1,349
Final dividend per share (in USD per share)			$ 0.6298	$ 0.5998

X

- Definition

The amount, per share, of final dividends as distribution to owners.

+ References

No definition available.

+ Details

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X

- Definition

Share Capital, Reserves And Other Equity Interest [Abstract]

+ References

No definition available.

+ Details

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Namespace Prefix:	deo_
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X

- Definition

The amount of dividends relating to prior years, recognised as distributions to owners of the parent. [Refer: Parent [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2024-03-27

+ Details

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