v3.25.4
Intangible Assets - Product Development (Tables)
 12 Months Ended
Dec. 31, 2025
Texts Block [Abstract]  
Summary of Intangible Assets Product Development
  All figures in £ millions
   
   2025
    
   2024
  
Cost
      
At 1 January
   
 
2,514
 
  
   2,517  
Exchange differences
   
 
(135
)
  
   17  
Additions
   
 
285
 
  
   284  
Disposals and retirements
   
 
(38
)
 
  
   (309 ) 
Transfers
   
 
–
 
  
   5  
 
 
 
At 31 December
   
 
2,626
 
  
   2,514  
 
 
 
Amortisation
   
  
At 1 January
   
 
(1,567
)
  
   (1,570 ) 
Exchange differences
   
 
89
 
  
   (14 ) 
Charge for the year
   
 
(276
)
  
   (287 ) 
Impairment
   
 
(88
)
  
   (4 ) 
Disposals and retirements
   
 
38
 
  
   309  
Transfers
   
 
–
 
  
   (1 ) 
 
 
 
At 31 December
   
 
(1,804
)
  
   (1,567 ) 
 
 
 
Carrying amounts at 31 December
   
 
822
 
  
   947