v3.25.4
Risk management - Retail Banking: Forborne portfolio by geographical area (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of credit risk exposure [line items]    
Forborne assets € 13,461 € 12,817
Forborne    
Disclosure of credit risk exposure [line items]    
Increase (decrease) of forborne assets € 644  
Belgium | Forborne    
Disclosure of credit risk exposure [line items]    
Increase (decrease) of forborne assets, percentage 28.50% 28.20%
Of which: non-performing    
Disclosure of credit risk exposure [line items]    
Forborne assets € 5,729 € 5,640
Of which: non-performing | Forborne    
Disclosure of credit risk exposure [line items]    
Increase (decrease) of forborne assets € 27  
Of which: non-performing | Netherlands | Forborne    
Disclosure of credit risk exposure [line items]    
Increase (decrease) of forborne assets, percentage 28.30% 22.50%
Of which: non-performing | Belgium | Forborne    
Disclosure of credit risk exposure [line items]    
Increase (decrease) of forborne assets, percentage 39.00% 39.40%
Of which: non-performing | Germany | Forborne    
Disclosure of credit risk exposure [line items]    
Increase (decrease) of forborne assets, percentage 17.30% 20.00%
Retail Banking    
Disclosure of credit risk exposure [line items]    
Forborne assets € 7,551 € 6,883
Percentage of forborne assets 1.40% 1.30%
Increase (decrease) of forborne assets € 600  
Retail Banking | Forborne    
Disclosure of credit risk exposure [line items]    
Increase (decrease) of forborne assets 667  
Retail Banking | Netherlands    
Disclosure of credit risk exposure [line items]    
Forborne assets 2,136 € 1,548
Retail Banking | Belgium    
Disclosure of credit risk exposure [line items]    
Forborne assets 2,153 1,942
Retail Banking | Germany    
Disclosure of credit risk exposure [line items]    
Forborne assets 1,304 1,379
Retail Banking | Poland    
Disclosure of credit risk exposure [line items]    
Forborne assets 793 777
Retail Banking | Spain    
Disclosure of credit risk exposure [line items]    
Forborne assets 92 159
Retail Banking | Italy    
Disclosure of credit risk exposure [line items]    
Forborne assets 104 122
Retail Banking | Türkiye    
Disclosure of credit risk exposure [line items]    
Forborne assets 22 13
Retail Banking | Romania    
Disclosure of credit risk exposure [line items]    
Forborne assets 216 173
Retail Banking | Rest of Europe    
Disclosure of credit risk exposure [line items]    
Forborne assets 91 102
Retail Banking | America    
Disclosure of credit risk exposure [line items]    
Forborne assets 5 22
Retail Banking | Asia    
Disclosure of credit risk exposure [line items]    
Forborne assets 1 1
Retail Banking | Australia    
Disclosure of credit risk exposure [line items]    
Forborne assets 635 646
Retail Banking | Africa    
Disclosure of credit risk exposure [line items]    
Forborne assets
Retail Banking | Performing Exposure    
Disclosure of credit risk exposure [line items]    
Forborne assets 4,538 3,987
Retail Banking | Performing Exposure | Netherlands    
Disclosure of credit risk exposure [line items]    
Forborne assets 1,711 1,134
Retail Banking | Performing Exposure | Belgium    
Disclosure of credit risk exposure [line items]    
Forborne assets 978 800
Retail Banking | Performing Exposure | Germany    
Disclosure of credit risk exposure [line items]    
Forborne assets 965 1,052
Retail Banking | Performing Exposure | Poland    
Disclosure of credit risk exposure [line items]    
Forborne assets 361 403
Retail Banking | Performing Exposure | Spain    
Disclosure of credit risk exposure [line items]    
Forborne assets 55 127
Retail Banking | Performing Exposure | Italy    
Disclosure of credit risk exposure [line items]    
Forborne assets 33 43
Retail Banking | Performing Exposure | Türkiye    
Disclosure of credit risk exposure [line items]    
Forborne assets 16 9
Retail Banking | Performing Exposure | Romania    
Disclosure of credit risk exposure [line items]    
Forborne assets 106 72
Retail Banking | Performing Exposure | Rest of Europe    
Disclosure of credit risk exposure [line items]    
Forborne assets 32 50
Retail Banking | Performing Exposure | America    
Disclosure of credit risk exposure [line items]    
Forborne assets 17
Retail Banking | Performing Exposure | Asia    
Disclosure of credit risk exposure [line items]    
Forborne assets
Retail Banking | Performing Exposure | Australia    
Disclosure of credit risk exposure [line items]    
Forborne assets 279 279
Retail Banking | Performing Exposure | Africa    
Disclosure of credit risk exposure [line items]    
Forborne assets
Retail Banking | Non-performing exposure    
Disclosure of credit risk exposure [line items]    
Forborne assets 3,013 2,897
Retail Banking | Non-performing exposure | Netherlands    
Disclosure of credit risk exposure [line items]    
Forborne assets 424 414
Retail Banking | Non-performing exposure | Belgium    
Disclosure of credit risk exposure [line items]    
Forborne assets 1,175 1,142
Retail Banking | Non-performing exposure | Germany    
Disclosure of credit risk exposure [line items]    
Forborne assets 338 327
Retail Banking | Non-performing exposure | Poland    
Disclosure of credit risk exposure [line items]    
Forborne assets 432 374
Retail Banking | Non-performing exposure | Spain    
Disclosure of credit risk exposure [line items]    
Forborne assets 37 31
Retail Banking | Non-performing exposure | Italy    
Disclosure of credit risk exposure [line items]    
Forborne assets 70 79
Retail Banking | Non-performing exposure | Türkiye    
Disclosure of credit risk exposure [line items]    
Forborne assets 6 4
Retail Banking | Non-performing exposure | Romania    
Disclosure of credit risk exposure [line items]    
Forborne assets 110 101
Retail Banking | Non-performing exposure | Rest of Europe    
Disclosure of credit risk exposure [line items]    
Forborne assets 59 52
Retail Banking | Non-performing exposure | America    
Disclosure of credit risk exposure [line items]    
Forborne assets 5 6
Retail Banking | Non-performing exposure | Asia    
Disclosure of credit risk exposure [line items]    
Forborne assets 1
Retail Banking | Non-performing exposure | Australia    
Disclosure of credit risk exposure [line items]    
Forborne assets 357 367
Retail Banking | Non-performing exposure | Africa    
Disclosure of credit risk exposure [line items]    
Forborne assets
Retail Banking | Of which: non-performing    
Disclosure of credit risk exposure [line items]    
Forborne assets € 3,013 € 2,897