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Auditors' remuneration (Details) - GBP (£) £ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Auditors' remuneration |  |  |
Fees payable to the Company's auditors for the audit of the Parent Company and Group accounts | £ 2 | £ 3 | £ 3
Audit of accounts of subsidiaries of the Group | 4 | 5 | 4
Audit-related assurance services | 5 | 3 | 2
Total audit and audit-related assurance services | 11 | 11 | 9
Non-audit services |  |  | 3
Total | 11 | 11 | 12
Amount paid to the Company's auditor in respect of reporting on internal financial controls. | £ 4 | £ 3 |
Amount paid to the Company's auditor in respect of the 2021 PCAOB group audit |  |  | £ 2

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- Definition The amount of fees paid or payable to the entity's auditors. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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- References No definition available. + Details
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- Definition The amount of fees paid to the entity's auditors in respect of the 2021 PCAOB group audit. + References No definition available. + Details
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- Definition The amount of fees paid to the entity's auditors in respect of reporting on internal financial controls. + References No definition available. + Details
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- Definition The amount of fees paid or payable to the entity's auditors for audit services in assurance services. + References No definition available. + Details
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- Definition The amount of fees paid or payable to the entity's auditors for audit services in subsidiaries. + References No definition available. + Details
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- Definition Fees payable to the Company's auditor for the audit of the Parent Company and Group accounts + References No definition available. + Details
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- Definition The amount of fees paid or payable to the non-audit services. + References No definition available. + Details
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- Definition Represent to information related to Total audit and audit-related assurance services. + References No definition available. + Details
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