v3.25.4
Inventories - Additional Information (Detail) - GBP (£)
£ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Classes of current inventories [abstract]      
Cost of inventories relating to continuing operations recognised as expense £ 120 £ 129 £ 155
Inventory provisions charged in income statement 8 7 19
Impairment charges against the inventory returns asset £ 1 £ 0 £ 0