v3.26.1
Primary and secondary segments reporting - Schedule of reconciliation of consolidated profit after tax to operating profit before tax, narrative (Details)
€ in Millions, £ in Millions
8 Months Ended 12 Months Ended
Aug. 31, 2025
EUR (€)
Dec. 31, 2025
EUR (€)
Dec. 31, 2025
GBP (£)
Dec. 31, 2024
EUR (€)
Dec. 31, 2023
EUR (€)
Dec. 19, 2024
Disclosure of operating segments [line items]            
Expense of restructuring activities   € 620.0   € 835.0 € 385.0  
Impairment and reversal of impairment on financial assets, net   12,596.0   12,183.0 12,260.0  
Gross profit   58,311.0   58,043.0 53,951.0  
Tax expense (income) € 635.0 4,723.0   4,844.0 3,880.0  
Profit/(loss) attributable to non-controlling interests   1,399.0   1,170.0 1,107.0  
Gains on disposals of investments   17.0   360.0 285.0  
Merchant Platform in Germany and Superdigital in Latin America            
Disclosure of operating segments [line items]            
Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation       (243.0)    
Brazil And Openbank Segment            
Disclosure of operating segments [line items]            
Gains on disposals of investments         270.0  
United Kingdom | Financial Conduct Authority (FCA) Review of The Vehicle Finance Market | Other provisions            
Disclosure of operating segments [line items]            
Increase in existing provisions   214.0 £ 183 353.0    
Other adjustments            
Disclosure of operating segments [line items]            
Impairment and reversal of impairment on financial assets, net   (467.0)   (352.0) (474.0)  
Gross profit   0.0   0.0 0.0  
Tax expense (income)   210.0   0.0 213.0  
Profit/(loss) attributable to non-controlling interests   26.0   0.0 26.0  
Other adjustments | Brazil            
Disclosure of operating segments [line items]            
Impairment and reversal of impairment on financial assets, net   467.0   352.0 (474.0)  
Loan loss provisions, net of taxes and minority interest   231.0   € 174.0 235.0  
Tax expense (income)         (213.0)  
Profit/(loss) attributable to non-controlling interests         € (26.0)  
Caceis (Notes 3 and 12)            
Disclosure of operating segments [line items]            
Gains (losses) on noncurrent assets held for sale not classified as discontinued operations   € 231.0        
Proportion of ownership interest in associate, sold (in percentage)           30.50%