v3.25.4
Risk Management - Economic uncertainty adjustments and Other adjustments (Details) - GBP (£)
£ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of financial assets [line items]      
Financial assets £ (1,232,975) £ (1,204,773)  
Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 4,034 3,860  
Retail mortgages      
Disclosure of financial assets [line items]      
Financial assets (4,952) (4,956)  
Retail mortgages | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 33 41 £ 360
Retail credit cards      
Disclosure of financial assets [line items]      
Financial assets (20,527) (19,749)  
Retail credit cards | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 2,586 2,557 2,776
Corporate loans      
Disclosure of financial assets [line items]      
Financial assets (121,179) (116,204)  
Corporate loans | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 966 791 £ 836
Post-model adjustment | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 81    
Other adjustments | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 118 (29)  
Other adjustments | Retail mortgages | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 8 3  
Other adjustments | Retail credit cards | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 87 (23)  
Other adjustments | Corporate loans | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets 24 (6)  
Other adjustments | Debt securities | Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets £ 0 £ (7)