v3.25.4
Legal, competition and regulatory matters (Details)
plaintiff in Thousands, $ in Millions
1 Months Ended 12 Months Ended
Jan. 31, 2024
GBP (£)
Dec. 31, 2023
lawsuit
Jan. 30, 2023
lawsuit
Dec. 31, 2025
GBP (£)
claim
lawsuit
plaintiff
Dec. 31, 2023
request
Dec. 31, 2018
GBP (£)
Dec. 31, 2008
USD ($)
Dec. 31, 2024
GBP (£)
Disclosure of contingent liabilities [line items]                
Provisions | £       £ 766,000,000       £ 736,000,000
Motor finance commission arrangements                
Disclosure of contingent liabilities [line items]                
Number of final decisions by the UK FCO | £ 2              
Provisions | £       £ 325,000,000       £ 90,000,000
Other proceedings                
Disclosure of contingent liabilities [line items]                
Number of arbitration requests received | request         2      
USD LIBOR Actions                
Disclosure of contingent liabilities [line items]                
Number of claims pending resolution | claim       1        
US residential and commercial mortgage-related activity and litigation | RMBS repurchase requests | Originated and sold to third parties by acquired subsidiary                
Disclosure of contingent liabilities [line items]                
Number of claims pending resolution       1        
Civil actions in respect of VRDO - private plaintiffs                
Disclosure of contingent liabilities [line items]                
Number of lawsuits with specified damages sought       3        
Interest Rate Swap and Credit Default Swap US Civil Actions                
Disclosure of contingent liabilities [line items]                
Number of lawsuits with specified damages sought       1        
BDC Finance LLC                
Disclosure of contingent liabilities [line items]                
Litigation settlements approved | $             $ 298  
Civil actions in respect of the US Anti-Terrorism Act                
Disclosure of contingent liabilities [line items]                
Number of lawsuits with specified damages sought       8        
Number of plaintiffs | plaintiff       4        
Civil actions in respect of the US Anti-Terrorism Act - EDNY                
Disclosure of contingent liabilities [line items]                
Number of lawsuits with specified damages sought     6          
Number of lawsuits dismissed     3          
Number of lawsuits subject to appeal     1          
Number of lawsuits consolidated into a separate lawsuit       2        
Number of separate lawsuit       1        
Number of initial lawsuit amended   1            
Number of initial lawsuits currently stayed       2        
Civil actions in respect of the US Anti-Terrorism Act - SDNY                
Disclosure of contingent liabilities [line items]                
Number of lawsuits with specified damages sought     2          
HMRC assessments concerning UK VAT                
Disclosure of contingent liabilities [line items]                
Damages sought | £           £ 181,000,000    
HMRC assessments concerning UK VAT | UK Banking Business                
Disclosure of contingent liabilities [line items]                
Damages sought | £           128,000,000    
Barclays Bank PLC | HMRC assessments concerning UK VAT                
Disclosure of contingent liabilities [line items]                
Damages sought | £           £ 53,000,000