v3.26.1
Report of the directors financial review risk report - The Downside scenarios (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Consensus Downside scenario allowance for ECL | UK | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (0.50%) (0.20%)
Consensus Downside scenario allowance for ECL | UK | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 6.60% 6.20%
House price index (%, start-to-trough) (4.40%) (4.10%)
Inflation rate (YoY % change, max) 4.40% 1.30%
Central bank policy rate (%, min) 4.40% 2.20%
Consensus Downside scenario allowance for ECL | US | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (0.60%) (0.80%)
Consensus Downside scenario allowance for ECL | US | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 5.30% 5.30%
House price index (%, start-to-trough) (3.10%) (3.10%)
Inflation rate (YoY % change, max) 4.70% 3.40%
Central bank policy rate (%, min) 4.20% 4.60%
Consensus Downside scenario allowance for ECL | Hong Kong | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (2.60%) (1.70%)
Consensus Downside scenario allowance for ECL | Hong Kong | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 4.70% 4.80%
House price index (%, start-to-trough) 0.10% (3.80%)
Inflation rate (YoY % change, max) 2.70% 0.10%
Central bank policy rate (%, min) 4.60% 5.00%
Consensus Downside scenario allowance for ECL | Chinese mainland | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (1.90%) (1.70%)
Consensus Downside scenario allowance for ECL | Chinese mainland | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 6.70% 6.80%
House price index (%, start-to-trough) (6.20%) (5.60%)
Inflation rate (YoY % change, max) 2.50% (2.90%)
Central bank policy rate (%, min) 3.40% 1.50%
Consensus Downside scenario allowance for ECL | France | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (0.60%) (0.40%)
Consensus Downside scenario allowance for ECL | France | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 8.80% 8.60%
House price index (%, start-to-trough) 0.20% 0.70%
Inflation rate (YoY % change, max) 3.10% 0.40%
Central bank policy rate (%, min) 2.90% 0.60%
Consensus Downside scenario allowance for ECL | UAE | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (1.50%) 0.40%
Consensus Downside scenario allowance for ECL | UAE | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 3.00% 3.20%
House price index (%, start-to-trough) (6.60%) (3.40%)
Inflation rate (YoY % change, max) 3.40% 0.50%
Central bank policy rate (%, min) 4.20% 4.60%
Consensus Downside scenario allowance for ECL | Mexico | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (1.00%) (1.00%)
Consensus Downside scenario allowance for ECL | Mexico | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 3.40% 3.80%
House price index (%, start-to-trough) 0.50% 0.60%
Inflation rate (YoY % change, max) 5.90% 4.70%
Central bank policy rate (%, min) 9.30% 9.50%
Downside 2 scenario allowance for ECL | UK | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (8.40%) (5.30%)
Downside 2 scenario allowance for ECL | UK | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 10.10% 8.90%
House price index (%, start-to-trough) (34.00%) (24.20%)
Inflation rate (YoY % change, max) 6.60% (1.90%)
Central bank policy rate (%, min) 4.70% 1.40%
Downside 2 scenario allowance for ECL | US | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (5.50%) (4.50%)
Downside 2 scenario allowance for ECL | US | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 10.60% 9.00%
House price index (%, start-to-trough) (17.40%) (17.10%)
Inflation rate (YoY % change, max) 5.20% 4.10%
Central bank policy rate (%, min) 4.50% 4.70%
Downside 2 scenario allowance for ECL | Hong Kong | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (9.90%) (9.30%)
Downside 2 scenario allowance for ECL | Hong Kong | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 7.00% 7.00%
House price index (%, start-to-trough) (11.60%) (19.60%)
Inflation rate (YoY % change, max) 3.70% (1.70%)
Central bank policy rate (%, min) 4.80% 5.00%
Downside 2 scenario allowance for ECL | Chinese mainland | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (9.30%) (6.00%)
Downside 2 scenario allowance for ECL | Chinese mainland | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 6.90% 7.00%
House price index (%, start-to-trough) (25.30%) (23.10%)
Inflation rate (YoY % change, max) 2.70% (6.50%)
Central bank policy rate (%, min) 3.50% 1.20%
Downside 2 scenario allowance for ECL | France | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (8.00%) (6.20%)
Downside 2 scenario allowance for ECL | France | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 10.50% 10.70%
House price index (%, start-to-trough) (11.30%) (5.90%)
Inflation rate (YoY % change, max) 4.20% (0.60%)
Central bank policy rate (%, min) 3.10% 0.10%
Downside 2 scenario allowance for ECL | UAE | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (10.40%) (5.70%)
Downside 2 scenario allowance for ECL | UAE | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 4.60% 3.90%
House price index (%, start-to-trough) (46.90%) (30.50%)
Inflation rate (YoY % change, max) 3.90% 0.30%
Central bank policy rate (%, min) 4.50% 4.70%
Downside 2 scenario allowance for ECL | Mexico | 2026    
Disclosure of financial assets [line items]    
GDP level (%, start-to-trough) (10.40%) (10.00%)
Downside 2 scenario allowance for ECL | Mexico | 2027    
Disclosure of financial assets [line items]    
Unemployment rate (%, max) 5.20% 5.20%
House price index (%, start-to-trough) 0.50% 0.60%
Inflation rate (YoY % change, max) 5.80% 4.80%
Central bank policy rate (%, min) 9.50% 9.90%