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Business combinations - Revenue and Operating Profit (Details) - GBP (£) £ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Business combinations |  |
Revenue from the dates of acquisition | £ 68 | £ 75
Operating profit from the dates of acquisition | 1 | 10
Revenue as if acquisition happened at the beginning | 5,492 | 5,414
Operating profit as if acquisition happened at the beginning | £ 551 | £ 628

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- Definition The profit (loss) of the acquiree, since the acquisition date, included in the consolidated statement of comprehensive income. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph q -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_q_i&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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- Definition The profit (loss) of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Total for all business combinations [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph q -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_q_ii&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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- Definition The amount of revenue of the acquiree since the acquisition date included in the consolidated statement of comprehensive income. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph q -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_q_i&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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- Definition The revenue of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Total for all business combinations [member]; Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph q -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_q_ii&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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