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Acquisition and sale of businesses and brands and purchase of non-controlling interests - Purchase of shares of non-controlling interests (Details) Ksh in Millions, $ in Millions	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Mar. 23, 2023	Jun. 30, 2024 USD ($)	Jan. 16, 2024 USD ($)	Mar. 24, 2023 USD ($)	Mar. 24, 2023 KES (Ksh)	Jun. 30, 2022 USD ($)
Disclosure of detailed information about business combination [line items]
Cash transferred	$ 373	$ 0		$ 0				$ 116
Proportion of ownership interest in subsidiary				100.00%
DeLeon Holdco LLC
Disclosure of detailed information about business combination [line items]
Percentage of interest acquired					50.00%
Diageo North America, Inc. | DeLeon Holdco LLC
Disclosure of detailed information about business combination [line items]
Percentage of interest acquired					50.00%
Cash transferred					$ 223
Diageo Kenya Limited | East African Breweries Limited
Disclosure of detailed information about business combination [line items]
Percentage of interest acquired						14.97%	14.97%
Cash transferred						$ 173	Ksh 22,732
Acquisition transaction cost	$ 5
DeLeon Holdco LLC
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary		100.00%
East African Breweries Limited
Disclosure of detailed information about business combination [line items]
Proportion of ownership interest in subsidiary	65.00%		50.03%

X

- Definition

The amount of acquisition-related costs for transactions recognised separately from the acquisition of assets and the assumption of liabilities in business combinations. [Refer: Business combinations [member]]

+ References

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The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]

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