v3.26.1
Related parties (Details) - EUR (€)
€ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Expenses      
Finance costs € 68 € 62  
Leases 0 0  
Services received 0 0  
Purchases of stocks 0 0  
Other expenses 58 52  
Total expenses 126 114  
Income      
Finance income 212 225  
Dividends received 0 0  
Services rendered 16 15  
Sale of stocks 0 0  
Other income 782 667  
Total income 1,010 907  
Debt balances:      
Customers and commercial debtors 0   € 0
Loans and credits granted 10,829   10,413
Other collection rights 348   391
Debit balances 11,177   10,804
Credit balances:      
Suppliers and creditors granted 0   0
Loans and credits received 3,339   3,177
Other payment obligations 179   191
Credit balances 3,518   3,368
Other transactions      
Other transactions      
Financing agreements: loans and capital contributions (lender) 225 395  
Financing agreements: loans and capital contributions (borrower) 434 (267)  
Guarantees provided (8) 13  
Guarantees received 0 0  
Commitments acquired 54 20  
Dividends and other distributed profit 26 36  
Other transactions (32) (207)  
Significant shareholders      
Expenses      
Finance costs 0 0  
Leases 0 0  
Services received 0 0  
Purchases of stocks 0 0  
Other expenses 0 0  
Total expenses 0 0  
Income      
Finance income 0 0  
Dividends received 0 0  
Services rendered 0 0  
Sale of stocks 0 0  
Other income 0 0  
Total income 0 0  
Debt balances:      
Customers and commercial debtors 0   0
Loans and credits granted 0   0
Other collection rights 0   0
Debit balances 0   0
Credit balances:      
Suppliers and creditors granted 0   0
Loans and credits received 0   0
Other payment obligations 0   0
Credit balances 0   0
Significant shareholders | Other transactions      
Other transactions      
Financing agreements: loans and capital contributions (lender) 0 0  
Financing agreements: loans and capital contributions (borrower) 0 0  
Guarantees provided 0 0  
Guarantees received 0 0  
Commitments acquired 0 0  
Dividends and other distributed profit 0 0  
Other transactions 0 0  
Directors and executives      
Expenses      
Finance costs 0 0  
Leases 0 0  
Services received 0 0  
Purchases of stocks 0 0  
Other expenses 0 0  
Total expenses 0 0  
Income      
Finance income 0 0  
Dividends received 0 0  
Services rendered 0 0  
Sale of stocks 0 0  
Other income 0 0  
Total income 0 0  
Debt balances:      
Customers and commercial debtors 0   0
Loans and credits granted 20   18
Other collection rights 0   0
Debit balances 20   18
Credit balances:      
Suppliers and creditors granted 0   0
Loans and credits received 13   15
Other payment obligations 0   0
Credit balances 13   15
Directors and executives | Other transactions      
Other transactions      
Financing agreements: loans and capital contributions (lender) 2 3  
Financing agreements: loans and capital contributions (borrower) (2) (5)  
Guarantees provided 0 2  
Guarantees received 0 0  
Commitments acquired 0 0  
Dividends and other distributed profit 3 3  
Other transactions 0 0  
Group companies or entities      
Expenses      
Finance costs 67 60  
Leases 0 0  
Services received 0 0  
Purchases of stocks 0 0  
Other expenses 57 51  
Total expenses 124 111  
Income      
Finance income 209 221  
Dividends received 0 0  
Services rendered 16 15  
Sale of stocks 0 0  
Other income 781 666  
Total income 1,006 902  
Debt balances:      
Customers and commercial debtors 0   0
Loans and credits granted 10,495   10,121
Other collection rights 333   370
Debit balances 10,828   10,491
Credit balances:      
Suppliers and creditors granted 0   0
Loans and credits received 3,109   2,786
Other payment obligations 179   191
Credit balances 3,288   2,977
Group companies or entities | Other transactions      
Other transactions      
Financing agreements: loans and capital contributions (lender) 183 281  
Financing agreements: loans and capital contributions (borrower) 283 (424)  
Guarantees provided 0 7  
Guarantees received 0 0  
Commitments acquired 40 27  
Dividends and other distributed profit 0 0  
Other transactions (26) (204)  
Other related parties      
Expenses      
Finance costs 1 2  
Leases 0 0  
Services received 0 0  
Purchases of stocks 0 0  
Other expenses 1 1  
Total expenses 2 3  
Income      
Finance income 3 4  
Dividends received 0 0  
Services rendered 0 0  
Sale of stocks 0 0  
Other income 1 1  
Total income 4 5  
Debt balances:      
Customers and commercial debtors 0   0
Loans and credits granted 314   274
Other collection rights 15   21
Debit balances 329   295
Credit balances:      
Suppliers and creditors granted 0   0
Loans and credits received 217   376
Other payment obligations 0   0
Credit balances 217   € 376
Other related parties | Other transactions      
Other transactions      
Financing agreements: loans and capital contributions (lender) 40 111  
Financing agreements: loans and capital contributions (borrower) 153 162  
Guarantees provided (8) 4  
Guarantees received 0 0  
Commitments acquired 14 (7)  
Dividends and other distributed profit 23 33  
Other transactions € (6) € (3)