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Trade and other payables: amounts falling due after more than one year - Payment Due to Put Options (Details) - GBP (£) £ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Liabilities of put option agreements with vendors | £ 67 | £ 104
Within one year |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Liabilities of put option agreements with vendors | 1 | 14
Between one and two years |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Liabilities of put option agreements with vendors | 32 | 24
Between two and three years |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Liabilities of put option agreements with vendors | 15 | 39
Between three and four years |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Liabilities of put option agreements with vendors | 12 | 10
Between four and five years |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Liabilities of put option agreements with vendors | 3 | 6
Over five years |  |
Disclosure of maturity analysis for derivative financial liabilities [line items] |  |
Liabilities of put option agreements with vendors | £ 4 | £ 11

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