v3.26.1
Fair value of financial instruments - Comparison of carrying amounts and fair values for assets and liabilities not held at fair value (Details) - GBP (£)
£ in Millions
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Financial assets      
Debt securities at amortised cost £ 56,579 £ 55,153  
Reverse repurchase agreements and other similar secured lending 12,238 17,662  
Assets included in disposal groups classified as held for sale 0 5,932  
Financial liabilities      
Repurchase agreements and other similar secured borrowing (20,013) (18,651)  
Debt securities in issue (62,773) (57,229)  
Subordinated liabilities (43,252) (45,239) £ (41,875)
Fair value      
Financial assets      
Debt securities at amortised cost 55,676 54,165  
Loans and advances at amortised cost 157,961 152,780  
Reverse repurchase agreements and other similar secured lending 12,238 17,662  
Assets included in disposal groups classified as held for sale 0 6,065  
Financial liabilities      
Deposits at amortised cost (353,900) (344,803)  
Repurchase agreements and other similar secured borrowing (20,013) (18,651)  
Debt securities in issue (62,712) (57,170)  
Subordinated liabilities (45,423) (47,511)  
Carrying amount      
Financial assets      
Debt securities at amortised cost 56,579 55,153  
Loans and advances at amortised cost 156,430 150,786  
Reverse repurchase agreements and other similar secured lending 12,238 17,662  
Assets included in disposal groups classified as held for sale 0 5,801  
Financial liabilities      
Deposits at amortised cost (353,833) (344,751)  
Repurchase agreements and other similar secured borrowing (20,013) (18,651)  
Debt securities in issue (62,773) (57,229)  
Subordinated liabilities £ (43,252) £ (45,239)