v3.25.4
Report of Directors Financial Review Risk Report - Group ECL sensitivity results (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of financial assets [line items]    
Financial assets $ 3,117,161 $ 2,923,319
Allowance for ECL    
Disclosure of financial assets [line items]    
Financial assets (4,593) (4,618)
ECL income statement change for the period (4,900) (4,800)
Allowance for ECL | Retail Lending    
Disclosure of financial assets [line items]    
Financial assets (2,688) (2,413)
ECL income statement change for the period (2,900) (2,600)
Increase (decrease) in financial assets, sensitive portfolios 300  
Allowance for ECL | Wholesale    
Disclosure of financial assets [line items]    
Financial assets (1,905) (2,205)
ECL income statement change for the period (2,000) $ (2,200)
Increase (decrease) in financial assets, sensitive portfolios $ (300)  
Consensus central scenario    
Disclosure of financial assets [line items]    
Probability 75.00% 75.00%
Consensus central scenario | Maximum    
Disclosure of financial assets [line items]    
Probability 100.00%  
Consensus central scenario | Allowance for ECL | Retail Lending    
Disclosure of financial assets [line items]    
Financial assets $ (2,646) $ (2,351)
ECL income statement change for the period 0 (100)
Consensus central scenario | Allowance for ECL | Wholesale    
Disclosure of financial assets [line items]    
Financial assets (1,778) (2,031)
ECL income statement change for the period $ 0 $ (200)
Consensus upside scenario    
Disclosure of financial assets [line items]    
Probability 10.00% 10.00%
Consensus upside scenario | Maximum    
Disclosure of financial assets [line items]    
Probability 100.00%  
Consensus upside scenario | Allowance for ECL | Retail Lending    
Disclosure of financial assets [line items]    
Financial assets $ (2,570) $ (2,285)
ECL income statement change for the period (100) (100)
Consensus upside scenario | Allowance for ECL | Wholesale    
Disclosure of financial assets [line items]    
Financial assets (1,477) (1,612)
ECL income statement change for the period $ (300) $ (600)
Consensus downside scenario    
Disclosure of financial assets [line items]    
Probability 10.00% 10.00%
Consensus downside scenario | Maximum    
Disclosure of financial assets [line items]    
Probability 100.00%  
Consensus downside scenario | Allowance for ECL | Retail Lending    
Disclosure of financial assets [line items]    
Financial assets $ (2,735) $ (2,440)
ECL income statement change for the period 0 0
Consensus downside scenario | Allowance for ECL | Wholesale    
Disclosure of financial assets [line items]    
Financial assets (2,399) (2,877)
ECL income statement change for the period $ 600 $ 700
Downside 2 scenario    
Disclosure of financial assets [line items]    
Probability 5.00% 5.00%
Downside 2 scenario | Maximum    
Disclosure of financial assets [line items]    
Probability 100.00%  
Downside 2 scenario | Allowance for ECL | Retail Lending    
Disclosure of financial assets [line items]    
Financial assets $ (3,637) $ (3,928)
ECL income statement change for the period 900 1,500
Downside 2 scenario | Allowance for ECL | Wholesale    
Disclosure of financial assets [line items]    
Financial assets (4,485) (6,555)
ECL income statement change for the period $ 2,700 $ 4,300