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Trade and other receivables - Carrying amounts of trade receivables denominated in different currencies (Details) - GBP (£) £ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Cash and cash equivalents |  |
Trade receivables | £ 622 | £ 424
Gross |  |
Cash and cash equivalents |  |
Trade receivables | 692 | 474
Pound sterling | Gross |  |
Cash and cash equivalents |  |
Trade receivables | 48 | 52
Euro | Gross |  |
Cash and cash equivalents |  |
Trade receivables | 159 | 150
US dollar | Gross |  |
Cash and cash equivalents |  |
Trade receivables | 301 | 133
Other currencies | Gross |  |
Cash and cash equivalents |  |
Trade receivables | £ 184 | £ 139

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