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Revenue recognition and operating segments - Other segment items included in the consolidated income statement (Details) - GBP (£) £ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of operating segments |  |  |
Amortisation and impairment of intangible assets, Total | £ 199 | £ 175 | £ 118
Amortisation and impairment of intangible assets, Tax effect | (43) | (44) | (25)
Amortisation and impairment of intangible assets, Total after tax effect | 156 | 131 | 93
Operating segments | North America |  |  |
Disclosure of operating segments |  |  |
Amortisation and impairment of intangible assets, Total | 114 | 118 | 59
Operating segments | International |  |  |
Disclosure of operating segments |  |  |
Amortisation and impairment of intangible assets, Total | 75 | 49 | 53
Operating segments | Europe |  |  |
Disclosure of operating segments |  |  |
Amortisation and impairment of intangible assets, Total | 39 | 24 | 29
Operating segments | UK & Sub-Saharan Africa |  |  |
Disclosure of operating segments |  |  |
Amortisation and impairment of intangible assets, Total | 6 | 8 |
Operating segments | Asia & MENAT |  |  |
Disclosure of operating segments |  |  |
Amortisation and impairment of intangible assets, Total | 22 | 11 | 20
Operating segments | Pacific |  |  |
Disclosure of operating segments |  |  |
Amortisation and impairment of intangible assets, Total | 8 | 6 | 4
Central and regional overheads |  |  |
Disclosure of operating segments |  |  |
Amortisation and impairment of intangible assets, Total | £ 10 | £ 8 | £ 6

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