v3.25.4
Trading portfolio (Details) - GBP (£)
£ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about financial instruments [line items]    
Trading portfolio assets £ 189,743 £ 166,244
Trading Portfolio Liabilities (56,829) (56,182)
Debt securities and other eligible bills    
Disclosure of detailed information about financial instruments [line items]    
Trading portfolio assets 94,040 77,805
Trading Portfolio Liabilities (32,309) (36,324)
Equity securities    
Disclosure of detailed information about financial instruments [line items]    
Trading portfolio assets 83,243 74,859
Trading Portfolio Liabilities (24,520) (19,858)
Traded loans    
Disclosure of detailed information about financial instruments [line items]    
Trading portfolio assets 12,249 13,470
Commodities    
Disclosure of detailed information about financial instruments [line items]    
Trading portfolio assets £ 211 £ 110