v3.25.4
Risk Report - Asset Quality - Financial Assets at amortized Cost (Detail: Text Values) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Financial assets at amortized cost subject to impairment [Abstract]      
YoY increase (decrease) of Stage 1 exposures € 46,000 € (11,000)  
YoY increase (decrease) of Stage 1 exposures, in percent 7.00% (2.00%)  
YoY increase (decrease) primarily driven by Stage 1   € (1,000)  
YoY increase (decrease) of Stage 2 exposures driven by Loans at Amortized Cost € (10,000) € 8,000  
YoY increase (decrease) of Stage 2 exposures driven by Loans at Amortized Cost, in percent (16.00%) 15.00%  
YoY increase (decrease) of Stage 3 exposures driven by Loans at Amortized Cost € (300) € 2,000  
YoY increase (decrease) of Stage 3 exposures driven by Loans at Amortized Cost, in percent (2.00%) 16.00%  
Allowance for credit losses against financial assets at amortized cost subject to impairment      
YoY Increase (Decrease) In Allowance For Credit Losses For Financial Assets At Amortized Cost € 358 € 513  
YoY Increase (Decrease) In Allowance For Credit Losses For Financial Assets At Amortized Cost, In Percent 6.00% 10.00%  
YoY Increase (Decrease) In State 1 Allowance For Credit Losses For Financial Assets At Amortized Cost € (16) € (9)  
YoY Increase (Decrease) In State 1 Allowance For Credit Losses For Financial Assets At Amortized Cost, In Percent (4.00%) (2.00%)  
YoY Increase (Decrease) In Stage 2 Allowance For Credit Losses For Financial Assets At Amortized Cost € 152 € 56  
YoY Increase (Decrease) In Stage 2 Allowance For Credit Losses For Financial Assets At Amortized Cost, In Percent 21.00% 8.00%  
YoY Increase (Decrease) In Stage 3 Allowance For Credit Losses For Financial Assets At Amortized Cost € 222 € 466  
YoY Increase (Decrease) In Stage 3 Allowance For Credit Losses For Financial Assets At Amortized Cost, In Percent 5.00% 11.00%  
Stage 3 coverage ratio (defined as Allowance for credit losses in Stage 3 (excluding POCI) divided by Financial assets at amortized cost in Stage 3 (excluding POCI), in percent 31.00% 29.00% 31.00%
Existing commitments to lend additional funds to debtors with Stage 3 financial assets at amortized cost € 903 € 710  
YoY Increase (Decrease) In Stage 3 Collateral And Guarantees Held Against Financial Assets As Amortized Cost € (300)    
YoY Increase (Decrease) In Stage 3 Collateral And Guarantees Held Against Financial Assets As Amortized Cost, In Percent (3.00%)    
Not recognize allowance for credit losses against Financial assets at amortized cost in Stage 3 € 1,800 € 1,600