v3.25.2
Risk management - Additional information (Details) - EUR (€)
€ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2027
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Dec. 31, 2023
Disclosure of credit risk exposure [line items]            
Global GDP increase     2.00%      
Global GDP rate assumed     2.40%      
Commercial Real Estate/ Inflation and interest rate increases     € 32 € 50    
Economic sector / portfolio based adjustments     20 38    
Mortgage portfolio adjustments     112 112    
Climate transition risk     44 29    
Unweighted ECL for all collective provisioned clients in upside scenario     2,911      
Unweighted ECL for all collective provisioned clients in baseline scenario     3,179      
Unweighted ECL for all collective provisioned clients in down scenario     3,887      
Total ECL collective assessment     € 1,474 1,328    
Qualitative indicator, days arrears, backstop     30 days      
Upside scenario            
Disclosure of credit risk exposure [line items]            
Total ECL collective assessment for performing assets     € 1,156      
Change in average threshold ratio     (0.50%)      
Downside scenario            
Disclosure of credit risk exposure [line items]            
Total ECL collective assessment for performing assets     € 2,170      
Change in average threshold ratio     1.70%      
GERMANY            
Disclosure of credit risk exposure [line items]            
Economic sector / portfolio based adjustments     € 9      
Australia            
Disclosure of credit risk exposure [line items]            
Economic sector / portfolio based adjustments     11      
Wholesale Banking            
Disclosure of credit risk exposure [line items]            
Commercial Real Estate/ Inflation and interest rate increases     18      
Climate transition risk     25      
Retail banking            
Disclosure of credit risk exposure [line items]            
Commercial Real Estate/ Inflation and interest rate increases     14      
Climate transition risk     € 19      
Eurozone            
Disclosure of credit risk exposure [line items]            
Economic growth rate     0.90%      
Poland            
Disclosure of credit risk exposure [line items]            
Economic growth rate     3.20%      
Turkey            
Disclosure of credit risk exposure [line items]            
Economic growth rate     2.90%      
RUSSIAN FEDERATION            
Disclosure of credit risk exposure [line items]            
Economic growth rate     1.60%      
CHINA            
Disclosure of credit risk exposure [line items]            
Economic growth rate     4.50%      
Australia            
Disclosure of credit risk exposure [line items]            
Economic growth rate     1.80%      
Forecast            
Disclosure of credit risk exposure [line items]            
Global output percent 2.40% 2.10% 2.00%      
Global GDP increase   2.10%        
Global GDP rate assumed   2.40%        
Forecast | UNITED STATES            
Disclosure of credit risk exposure [line items]            
Economic growth rate 2.00% 1.50% 1.40%      
Forecast | Eurozone            
Disclosure of credit risk exposure [line items]            
Economic growth rate 1.40% 1.10%        
Forecast | Poland            
Disclosure of credit risk exposure [line items]            
Economic growth rate 2.80% 3.40%        
Forecast | Turkey            
Disclosure of credit risk exposure [line items]            
Economic growth rate 3.60% 3.30%        
Forecast | RUSSIAN FEDERATION            
Disclosure of credit risk exposure [line items]            
Economic growth rate 1.40% 1.30%        
Forecast | CHINA            
Disclosure of credit risk exposure [line items]            
Economic growth rate 4.10% 4.10%        
Forecast | Australia            
Disclosure of credit risk exposure [line items]            
Economic growth rate 2.50% 2.20%        
Excluding all managment adjustments            
Disclosure of credit risk exposure [line items]            
Total model ECL     € 3,267      
Gross carrying amount | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     0 0    
Expected credit losses     € (1,093,934) (1,048,574)   € (1,025,043)
Gross carrying amount | Stage 1            
Disclosure of credit risk exposure [line items]            
Percentage of financial assets     91.70%   91.10%  
Gross carrying amount | Stage 1 | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     € 0 0    
Expected credit losses     € (1,003,405) € (954,943)   (937,633)
Gross carrying amount | Stage 2            
Disclosure of credit risk exposure [line items]            
Percentage of financial assets     7.10% 7.60%    
Changes in models     € (2,300)      
Gross carrying amount | Stage 2 | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     0 € 0    
Expected credit losses     (77,596) (79,888)   (75,454)
Gross carrying amount | Stage 2 | Not credit-impaired | Loans | Lifetime expected credit losses            
Disclosure of credit risk exposure [line items]            
Increase (decrease) through net transfers, financial assets     (10,500)      
Increase (decrease) through net level three transfers, financial assets     7,700      
Gross carrying amount | Stage 2 | Not credit-impaired | Other Commitments | Lifetime expected credit losses            
Disclosure of credit risk exposure [line items]            
Increase through other commitments     1,100      
Gross carrying amount | Stage 2 | Loans            
Disclosure of credit risk exposure [line items]            
Expected credit losses     € (77,600) € (79,900)    
Gross carrying amount | Stage 3            
Disclosure of credit risk exposure [line items]            
Percentage of financial assets     1.20% 1.30%    
Gross carrying amount | Stage 3 | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     € 0 € 0    
Expected credit losses     (12,932) (13,742)   (11,956)
Gross carrying amount | Stage 3 | Credit impaired | Loans            
Disclosure of credit risk exposure [line items]            
Decrease through derecognition and repayments financial assets     800      
Increase through write-offs and disposals, financial assets     1,500      
Gross carrying amount | Stage 3 | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     (800)      
Expected credit losses     (12,900) (13,700)    
Gross carrying amount | Stage 3 | Loans | Credit impaired | Of which: non-performing            
Disclosure of credit risk exposure [line items]            
Changes in models     (1,500)      
Provisions            
Disclosure of credit risk exposure [line items]            
Expected credit losses     5,945 6,049    
Increase (decrease) in financial assets     (612) (1,194)    
Provisions | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     35 20    
Expected credit losses     5,945 6,049   5,839
Increase (decrease) in financial assets     (612) (1,179)    
Provisions | Stage 1 | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     6 (8)    
Expected credit losses     439 409   517
Increase (decrease) in financial assets     (39) 102    
Provisions | Stage 2 | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     (17) 6    
Expected credit losses     1,247 1,130   1,435
Increase (decrease) due to sales and repayments, financial assets     (600)      
Increase (decrease) in financial assets     (137) 297    
Provisions | Stage 3 | Loans            
Disclosure of credit risk exposure [line items]            
Changes in models     47 22    
Expected credit losses     4,259 4,509   € 3,887
Financial assets, increase (decrease) in provisions     (300)      
Increase (decrease) in financial assets     € (436) € (1,578)