v3.25.4
Debt - Analysis of borrowings by currency (Details)
€ in Millions, £ in Millions, $ in Millions
Dec. 31, 2025
GBP (£)
Dec. 31, 2025
EUR (€)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
GBP (£)
Dec. 31, 2024
EUR (€)
Dec. 31, 2024
USD ($)
Disclosure of detailed information about borrowings            
Debt £ 7,267     £ 6,544    
Short-term bank loans, overdrafts and commercial paper            
Disclosure of detailed information about borrowings            
Debt 887     762    
Term debt            
Disclosure of detailed information about borrowings            
Debt 6,283     5,679    
Lease liabilities            
Disclosure of detailed information about borrowings            
Debt 97     103    
US dollars            
Disclosure of detailed information about borrowings            
Debt 3,507     2,713    
US dollars | Short-term bank loans, overdrafts and commercial paper            
Disclosure of detailed information about borrowings            
Debt 828     446    
US dollars | Term debt            
Disclosure of detailed information about borrowings            
Debt 2,667     2,246    
US dollars | Term debt | Euro            
Disclosure of detailed information about borrowings            
Debt denominated in another currency, swapped into given currency 0 € 0   493 € 600  
Fair value liability (asset) of derivative financial instruments against debt denominated in another currency, swapped into given currency 0     42    
US dollars | Term debt | Euro            
Disclosure of detailed information about borrowings            
Debt denominated in given currency, swapped into another currency 372   $ 500 0   $ 0
Fair value liability (asset) of derivative financial instruments against debt denominated in given currency, swapped into another currency 32     0    
US dollars | Term debt | Yen            
Disclosure of detailed information about borrowings            
Debt denominated in given currency, swapped into another currency 372   $ 500 0   $ 0
Fair value liability (asset) of derivative financial instruments against debt denominated in given currency, swapped into another currency (27)     0    
US dollars | Lease liabilities            
Disclosure of detailed information about borrowings            
Debt 12     21    
Pounds sterling            
Disclosure of detailed information about borrowings            
Debt 50     38    
Pounds sterling | Short-term bank loans, overdrafts and commercial paper            
Disclosure of detailed information about borrowings            
Debt 12     8    
Pounds sterling | Lease liabilities            
Disclosure of detailed information about borrowings            
Debt 38     30    
Euro            
Disclosure of detailed information about borrowings            
Debt 3,680     3,757    
Euro | Short-term bank loans, overdrafts and commercial paper            
Disclosure of detailed information about borrowings            
Debt 42     295    
Euro | Term debt            
Disclosure of detailed information about borrowings            
Debt 3,616     3,433    
Euro | Lease liabilities            
Disclosure of detailed information about borrowings            
Debt 22     29    
Other currencies            
Disclosure of detailed information about borrowings            
Debt 30     36    
Other currencies | Short-term bank loans, overdrafts and commercial paper            
Disclosure of detailed information about borrowings            
Debt 5     13    
Other currencies | Lease liabilities            
Disclosure of detailed information about borrowings            
Debt £ 25     £ 23