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Acquisition of businesses - Schedule of cash consideration paid in respect of acquisition of businesses and purchase of shares of non-controlling interests (Details) - GBP (£) £ in Millions	6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about business combination [line items]
Capital injection in associates	£ (21)
Net cash outflow on acquisition of businesses	(134)	£ (364)
Cash consideration paid for Casamigos
Disclosure of detailed information about business combination [line items]
Contingent consideration arrangement	(83)
Cash consideration paid in respect of other prior year acquisitions
Disclosure of detailed information about business combination [line items]
Contingent consideration arrangement	(27)
Cash consideration paid for investments in associates
Disclosure of detailed information about business combination [line items]
Cash consideration paid	£ (3)

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- Definition

Capital injection in associates.

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- Definition

Contingent consideration arrangement, cash transferred

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- Definition

The aggregate cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2021-01-01
-Paragraph 39
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_39&doctype=Standard
-URIDate 2021-03-24

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2021-01-01
-Paragraph B64
-Subparagraph f
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B
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- Definition

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

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