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Acquisitions - Summary of Book Values of Identifiable Assets and Liabilities Acquired and Their Fair Value (Details) - At Fair Value - GBP (£) £ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of detailed information about business combination [line items] |  |
Intangible assets | £ 17 | £ 141
Current assets | 20 | 41
Other assets | 0 | 3
Other liabilities | 0 | (49)
Other current liabilities | (8) | (37)
Other non-current liabilities | (4) | (6)
Deferred tax liabilities | (4) | (34)
Net Assets | 21 | 59
Non-controlling interests | 0 | (2)
Goodwill | 34 | 298
Consideration | 55 | 355
Cash | 47 | 227
Payments due to vendors | £ 8 | £ 128

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- Definition The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Total for all business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph f -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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- Definition The amount recognised as of the acquisition date for current assets acquired in a business combination. [Refer: Current assets; Total for all business combinations [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_i&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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- Definition The amount recognised as of the acquisition date for deferred tax liabilities assumed in a business combination. [Refer: Deferred tax liabilities; Total for all business combinations [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_i&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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- Definition The amount recognised as of the business combination's acquisition date for goodwill. [Refer: Goodwill; Total for all business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph IE72 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_IE72&doctype=Illustrative%20Examples -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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