v3.26.1
BORROWINGS - Composition of borrowings (Details)
€ in Millions, £ in Millions, $ in Millions
Jun. 30, 2026
GBP (£)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
EUR (€)
Dec. 31, 2025
GBP (£)
Dec. 31, 2025
EUR (€)
Borrowings          
Current £ (1,962)     £ (836)  
Non-current (6,290)     (7,773)  
Total borrowings (8,252)     (8,609)  
Commercial paper          
Borrowings          
Current (325) $ (430)   0  
Total borrowings (325)        
Commercial paper | Euro          
Borrowings          
Nominal value | €     € 2,000    
Commercial paper | USD          
Borrowings          
Nominal value | $   $ 10,000      
Loan and overdrafts          
Borrowings          
Current (76)     (43)  
Non-current (283)     (300)  
Total borrowings (359)     (343)  
Advances          
Borrowings          
Current       (6)  
Total borrowings       (6)  
Lease liabilities          
Borrowings          
Current (52)     (48)  
Non-current (111)     (85)  
Total borrowings (163)     (133)  
Non-voting preference shares          
Borrowings          
Non-current (25)     (25)  
Total borrowings (25)     (25)  
Bonds          
Borrowings          
Current (1,509)     (739)  
Non-current (5,871)     (7,363)  
Total borrowings £ (7,380)     (8,102)  
Euro Medium Term Note Programme          
Borrowings          
Current       £ (739) € (850)