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Business combinations - Provisional Fair Values of Assets and Liabilities Arising from Acquisitions (Details) - GBP (£) £ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Provisional fair values of assets and liabilities arising from acquisitions |  |
- Intangible assets | £ 56 | £ 80
- Property, plant and equipment | 11 | 12
Current assets | 27 | 22
Current liabilities | (23) | (12)
Non-current liabilities | (20) | (14)
Net assets acquired | 51 | 88
Customer lists, intangible assets | 46 | 69
Other intangibles assets | 10 | 11
ROU assets | 4 | 1
Cash acquired | 2 | 8
Inventory acquired | 11 | 2
Trade and other receivables | 14 | 12
Trade and other payables | (23) | (10)
Deferred tax relating to acquired intangibles | (9) | (12)
Lease liabilities | (4) | (1)
Other liabilities | (7) | £ (1)
Goodwill |  |
Provisional fair values of assets and liabilities arising from acquisitions |  |
Adjustments to provisional accounting of prior year acquisitions | (19) |
Deferred tax liabilities |  |
Provisional fair values of assets and liabilities arising from acquisitions |  |
Adjustments to provisional accounting of prior year acquisitions | (28) |
Customer lists |  |
Provisional fair values of assets and liabilities arising from acquisitions |  |
Adjustments to provisional accounting of prior year acquisitions | £ (9) |

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- Definition The amount recognised as of the acquisition date for cash and cash equivalents acquired in a business combination. [Refer: Cash and cash equivalents; 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 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 current liabilities assumed in a business combination. [Refer: Current 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 acquisition date for customer-related intangible assets acquired in a business combination. [Refer: Customer-related intangible assets [member]; 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 acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: 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 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 Reference 2: 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 + Details
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- Definition The amount recognised as of the acquisition date for identifiable intangible assets acquired in a business combination. [Refer: Intangible assets other than 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 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 Reference 2: 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 + Details
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- Definition The amount recognised as of the acquisition date for inventory acquired in a business combination. [Refer: Inventories; 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 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 Reference 2: 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 + Details
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- Definition The amount of measurement period adjustments recognised for particular assets, liabilities, non-controlling interests or items of consideration if the initial accounting for a business combination is incomplete. The measurement period is the period after the acquisition date during which the acquirer may adjust the provisional amounts recognised for a business combination. [Refer: Non-controlling interests; 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 B67 -Subparagraph a -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B67_a_iii&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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- Definition The amount recognised as of the acquisition date for non-current liabilities assumed in a business combination. [Refer: Non-current 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 acquisition date for plant, property and equipment acquired in a business combination. [Refer: Property, plant and equipment; 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 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 Reference 2: 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 + Details
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