v3.26.1
Key risk themes (Detail: Text Values) - EUR (€)
€ in Millions
 6 Months Ended 42 Months Ended
Jun. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
IFRS 9 Focus Areas Stress Tested Non Recourse CRE Portfolio [Line Items]      
Increase (decrease) in US High risk CRE portfolio, in percent   (41.00%)  
Increase (decrease) in Stress tested CRE portfolio € (922)    
Weighted Average LTV in the US office loan segment 92.00% 92.00% 88.00%
Weighted average net LTV in the US office loan segment 75.00% 75.00% 76.00%
Overview of CRE portfolio potential losses identified by stress test of CRE portfolio € 1,300    
IFRS 9 Focus Areas Stress Tested Non Recourse CRE Portfolio      
IFRS 9 Focus Areas Stress Tested Non Recourse CRE Portfolio [Line Items]      
Nonrecourse CRE Portfolio allowance for credit losses 1,300 € 1,300 € 1,100
Thereof stress-tested [1],[2] 1,129 1,129 903
Gross Carrying Amount      
IFRS 9 Focus Areas Stress Tested Non Recourse CRE Portfolio [Line Items]      
Total Stress tested Non Recourse CRE Portfolio Exposure by stages [2] € 23,366 € 23,366 € 24,288
[1] Allowance for Credit Losses and Provision for Credit Losses do not include country risk allowances/provisions.
[2] Loans at amortized cost