Contingent liabilities and legal proceedings - 2019 Moet Hennessy dividend (Details) - 12 months ended Jun. 30, 2020 - Moet Hennessy € in Millions, £ in Millions	GBP (£)	EUR (€)
Disclosure of contingent liabilities [line items]
Ownership interest in associate	34.00%
Proportion of ownership interest in investment by external party	66.00%
Estimated financial effect of contingent assets	£ 166	€ 181

Proportion of ownership interest held by an external party, not member of the Diageo group.

No definition available.

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

The amount of the estimated financial effect of possible assets that arise from past events and whose existence will be confirmed only by the occurrence or non-occurrence of one or more uncertain future events not wholly within control of the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]

+ References

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- Details

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