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Note 44 Balances of consolidated income statement arising from transactions with entities of the group (Details) - EUR (€)
€ in Millions
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Profit and loss related party transactions [Line Items]    
Interest and other income related party transactions € 15 € 10
Interest Expense Related Party Transactions 2 0
Fee And Commission Income Related Party Transactions 2 3
Fee And Commission Expense Related Party Transactions € 23 € 18