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Leases - Future cash outflow not reflected in lease liability - Narrative (Details) - GBP (£) £ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Future cash outflows not included in lease liabilities in respect of extension and termination options which are not reasonably expected to be exercised	£ 282	£ 255

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- Definition

Leases [Abstract]

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No definition available.

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- Definition

Potential Exposure To Future Cash Outflow Arising from Extension Options And Termination Options Not Reflected In Measurement Of Lease Liability

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No definition available.

+ Details

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