v3.25.4
Goodwill and intangible assets - Disclosure of the outcome the impairment review (Details) - GBP (£)
£ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of information for cash-generating units [line items]    
Goodwill £ 509 £ 539
Carrying value 1,303 1,425
Barclays Private Bank and Wealth Management    
Disclosure of information for cash-generating units [line items]    
Tangible equity 945  
Goodwill 95  
Intangible assets 0  
Carrying value 1,040  
Value in use 4,943  
Value in use exceeding carrying value 3,903 2,704
Barclays US Consumer Bank    
Disclosure of information for cash-generating units [line items]    
Tangible equity 3,055  
Goodwill 414  
Intangible assets 734  
Carrying value 4,203  
Value in use 6,879  
Value in use exceeding carrying value 2,676 353
Total    
Disclosure of information for cash-generating units [line items]    
Tangible equity 4,000  
Goodwill 509  
Intangible assets 734  
Carrying value 5,243  
Value in use 11,822  
Value in use exceeding carrying value £ 6,579 £ 3,057