v3.25.4
Related parties - Transactions with associates and joint ventures (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of subsidiaries [line items]      
Assets € 1,060,329 € 1,023,856 € 980,299
Liabilities 1,004,990 970,158  
Total for all associates      
Disclosure of subsidiaries [line items]      
Assets 117 142  
Liabilities 242 263  
Off-balance sheet commitments 18 23  
Income received 21 16  
Expenses paid 0 2  
Joint ventures      
Disclosure of subsidiaries [line items]      
Assets 0 0  
Liabilities 7 10  
Off-balance sheet commitments 0 0  
Income received 0 0  
Expenses paid € 0 € 0