v3.25.4
Note 21 Non current assets and disposal groups classified as held for sale changes in the year (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale € 828 € 923  
Non-current assets or disposal groups classified as held for sale 709 828 € 923
Cost [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale 1,473 1,928 2,078
Additions 147 283 192
Contributions from merger transactions 0 0 0
Retirements sales and other decreases (404) (784) (357)
Transfers other movements and exchage differences (3) 46 15
Disposals by companies held for sale 0 0 0
Non-current assets or disposal groups classified as held for sale 1,213 1,473 1,928
Impairment [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale 645 1,005 1,057
Additions 36 83 42
Contributions from merger transactions 0 0 0
Retirements sales and other decreases (202) (443) (111)
Transfers other movements and exchage differences 24 0 17
Disposals by companies held for sale 0 0 0
Additions transfer to discontinued operations 0 0 0
Non-current assets or disposal groups classified as held for sale 504 645 1,005
Foreclosed assets [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale 610 644  
Non-current assets or disposal groups classified as held for sale 524 610 644
Foreclosed assets [Member] | Cost [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale 847 943 1,070
Additions 145 250 190
Contributions from merger transactions 0 0 0
Retirements sales and other decreases (226) (338) (323)
Transfers other movements and exchage differences (23) (8) 6
Disposals by companies held for sale 0 0 0
Non-current assets or disposal groups classified as held for sale 743 847 943
Foreclosed assets [Member] | Impairment [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale 237 299 356
Additions 11 24 16
Contributions from merger transactions 0 0
Retirements sales and other decreases (62) (91) (89)
Transfers other movements and exchage differences 33 5 16
Disposals by companies held for sale 0 0
Additions transfer to discontinued operations 0 0
Non-current assets or disposal groups classified as held for sale 219 237 299
Property, plant and equipment [member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale [1] 163 236  
Non-current assets or disposal groups classified as held for sale [1] 130 163 236
Property, plant and equipment [member] | Cost [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale [1] 572 943 970
Additions [1] 2 18 2
Contributions from merger transactions [1] 0 0
Retirements sales and other decreases [1] (178) (446) (34)
Transfers other movements and exchage differences [1] 19 57 5
Disposals by companies held for sale [1] 0 0
Non-current assets or disposal groups classified as held for sale [1] 415 572 943
Property, plant and equipment [member] | Impairment [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale [1] 409 706 701
Additions [1] 25 59 27
Contributions from merger transactions [1] 0 0
Retirements sales and other decreases [1] (140) (352) (22)
Transfers other movements and exchage differences [1] (9) (5) 1
Disposals by companies held for sale [1] 0 0
Additions transfer to discontinued operations [1] 0 0
Non-current assets or disposal groups classified as held for sale [1] 285 409 706
Companies held for sale [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale 55 43  
Non-current assets or disposal groups classified as held for sale 55 55 43
Companies held for sale [Member] | Cost [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale 55 43 39
Additions 0 15 0
Contributions from merger transactions 0 0 0
Retirements sales and other decreases 0 0 0
Transfers other movements and exchage differences 1 (3) 4
Disposals by companies held for sale 0 0
Non-current assets or disposal groups classified as held for sale 55 55 43
Companies held for sale [Member] | Impairment [Member]      
Non current assets and disposal groups classified as held for sale changes in the year [Line Items]      
Non-current assets or disposal groups classified as held for sale 0 0 0
Additions 0 0 0
Contributions from merger transactions 0 0 0
Retirements sales and other decreases 0 0 0
Transfers other movements and exchage differences 0 0 0
Disposals by companies held for sale 0 0 0
Additions transfer to discontinued operations 0 0 0
Non-current assets or disposal groups classified as held for sale € 0 € 0 € 0
[1] (1) Net of accumulated amortization until assets were reclassified as “Non-current assets and disposal groups classified as held for sale”