Inventories - Summary of Current Inventories (Detail) - GBP (£) £ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Classes of current inventories [abstract] | ||
| Raw materials | £ 3 | £ 5 |
| Work in progress | 1 | 2 |
| Finished goods | 59 | 63 |
| Returns asset | 3 | 4 |
| Inventories | £ 66 | £ 74 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition A classification of current inventory representing the amount of goods that have completed the production process and are held for sale in the ordinary course of business. [Refer: Inventories] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The amount of current inventories. [Refer: Inventories] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition A classification of current inventory representing the amount of assets to be consumed in the production process or in the rendering of services. [Refer: Inventories] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition A classification of current inventory representing the amount of assets currently in production, which require further processes to be converted into finished goods or services. [Refer: Current finished goods; Inventories] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Inventory returns asset. No definition available.
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