v3.25.4
Note 45 Depreciation And Amortisation Expense (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Depreciation [Line Items]      
Depreciation and amortisation expense € 1,521 € 1,533 € 1,403
Tangible assets [Member]      
Depreciation [Line Items]      
Depreciation and amortisation expense 946 972 867
For own use depreciable assets [Member]      
Depreciation [Line Items]      
Depreciation and amortisation expense 607 623 547
Right of use assets [Member]      
Depreciation [Line Items]      
Depreciation and amortisation expense 335 343 317
Investment property [member]      
Depreciation [Line Items]      
Depreciation and amortisation expense 4 5 3
Intanbile assets [Member]      
Depreciation [Line Items]      
Depreciation and amortisation expense € 575 € 561 € 536