v3.25.4
Note 17 Tangible Assets Breakdown By Type Of Asset (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets € 17,567 € 16,432 € 15,089
Cost of tangible assets 17,724 17,567 16,432
Accrued depreciation 7,547 6,896 6,066
Accrued depreciation 7,999 7,547 6,896
Impairment of tangible assets 260 283 286
Impairment of tangible assets 243 260 283
Tangible assets 9,759 9,253 8,737
Tangible assets 9,482 9,759 9,253
Additions tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 1,282 1,914 1,795
Accrued depreciation changes in the year 946 972 867
Impairment of tangible assets changes in the year (5) (29) 16
Retirements tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (602) (566) (349)
Accrued depreciation changes in the year (369) (161) (111)
Impairment of tangible assets changes in the year 0 0 0
Acquisition of subsidiaries in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Disposal of entities in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Transfers of tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (75) (5) (22)
Accrued depreciation changes in the year (14) 5 (11)
Impairment of tangible assets changes in the year 7 (5) 0
Exchange difference and other tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (447) (208) (79)
Accrued depreciation changes in the year (112) (165) 85
Impairment of tangible assets changes in the year (19) 13 (18)
Additions transfer to discontinued operations tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Land and buildings [member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets 6,475 6,405 6,255
Cost of tangible assets 6,377 6,475 6,405
Accrued depreciation 1,262 1,226 1,064
Accrued depreciation 1,317 1,262 1,226
Impairment of tangible assets 118 166 154
Impairment of tangible assets 122 118 166
Tangible assets 5,094 5,013 5,036
Tangible assets 4,938 5,094 5,013
Land and buildings [member] | Additions tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 62 295 270
Accrued depreciation changes in the year 106 123 121
Impairment of tangible assets changes in the year 2 (65) 15
Land and buildings [member] | Retirements tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (78) (38) (19)
Accrued depreciation changes in the year (30) (25) (9)
Impairment of tangible assets changes in the year 0 0 0
Land and buildings [member] | Acquisition of subsidiaries in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Land and buildings [member] | Disposal of entities in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Land and buildings [member] | Transfers of tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 5 5 12
Accrued depreciation changes in the year (11) (4) (2)
Impairment of tangible assets changes in the year 7 0 0
Land and buildings [member] | Exchange difference and other tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (87) (192) (113)
Accrued depreciation changes in the year (10) (56) 52
Impairment of tangible assets changes in the year (5) 16 (3)
Land and buildings [member] | Additions transfer to discontinued operations tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Work in progress [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets 155 199 93
Cost of tangible assets 83 155 199
Accrued depreciation 0 0 0
Accrued depreciation 0 0 0
Impairment of tangible assets 0 0 0
Impairment of tangible assets 0 0 0
Tangible assets 155 199 93
Tangible assets 83 155 199
Work in progress [Member] | Additions tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 101 110 190
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Work in progress [Member] | Retirements tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (1) (1) (4)
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Work in progress [Member] | Acquisition of subsidiaries in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Work in progress [Member] | Disposal of entities in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Work in progress [Member] | Transfers of tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (162) (136) (72)
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Work in progress [Member] | Exchange difference and other tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (9) (17) (8)
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Work in progress [Member] | Additions transfer to discontinued operations tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Furniture, fixtures and vehicles [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets 6,848 6,424 5,833
Cost of tangible assets 7,029 6,848 6,424
Accrued depreciation 4,850 4,606 4,204
Accrued depreciation 4,962 4,850 4,606
Impairment of tangible assets 0 0 0
Impairment of tangible assets 0 0 0
Tangible assets 1,999 1,817 1,629
Tangible assets 2,067 1,999 1,817
Furniture, fixtures and vehicles [Member] | Additions tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 520 513 549
Accrued depreciation changes in the year 501 501 426
Impairment of tangible assets changes in the year 6 2 1
Furniture, fixtures and vehicles [Member] | Retirements tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (334) (89) (117)
Accrued depreciation changes in the year (306) (87) (73)
Impairment of tangible assets changes in the year 0 0 0
Furniture, fixtures and vehicles [Member] | Acquisition of subsidiaries in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Furniture, fixtures and vehicles [Member] | Disposal of entities in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Furniture, fixtures and vehicles [Member] | Transfers of tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 84 145 41
Accrued depreciation changes in the year (9) 10 (7)
Impairment of tangible assets changes in the year 0 0 0
Furniture, fixtures and vehicles [Member] | Exchange difference and other tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (89) (145) 118
Accrued depreciation changes in the year (74) (181) 57
Impairment of tangible assets changes in the year (6) (2) (1)
Furniture, fixtures and vehicles [Member] | Additions transfer to discontinued operations tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Right of use assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets 2,439 2,212 1,871
Cost of tangible assets 2,683 2,439 2,212
Accrued depreciation 1,164 906 653
Accrued depreciation 1,379 1,164 906
Impairment of tangible assets 22 40 65
Impairment of tangible assets 25 22 40
Tangible assets 1,253 1,266 1,153
Tangible assets 1,279 1,253 1,266
Right of use assets [Member] | Additions tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 437 574 499
Accrued depreciation changes in the year 317 324 296
Impairment of tangible assets changes in the year 4 (18) (14)
Right of use assets [Member] | Retirements tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (178) (332) (195)
Accrued depreciation changes in the year (30) (42) (26)
Impairment of tangible assets changes in the year 0 0 0
Right of use assets [Member] | Acquisition of subsidiaries in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Right of use assets [Member] | Disposal of entities in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Right of use assets [Member] | Transfers of tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 1 (44) (18)
Accrued depreciation changes in the year 2 22 (5)
Impairment of tangible assets changes in the year 0 0 0
Right of use assets [Member] | Exchange difference and other tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (17) 29 55
Accrued depreciation changes in the year (74) (46) (12)
Impairment of tangible assets changes in the year (1) 0 (11)
Right of use assets [Member] | Additions transfer to discontinued operations tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Right to use investment properties [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets 251 238 214
Cost of tangible assets 251 251 238
Accrued depreciation 91 93 70
Accrued depreciation 106 91 93
Impairment of tangible assets 81 61 50
Impairment of tangible assets 71 81 61
Tangible assets 79 84 94
Tangible assets 74 79 84
Right to use investment properties [Member] | Additions tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 5 2 10
Accrued depreciation changes in the year 18 19 21
Impairment of tangible assets changes in the year (10) 20 12
Right to use investment properties [Member] | Retirements tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (4) (32) 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Right to use investment properties [Member] | Acquisition of subsidiaries in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Right to use investment properties [Member] | Disposal of entities in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Right to use investment properties [Member] | Transfers of tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (1) 44 15
Accrued depreciation changes in the year (2) (22) 3
Impairment of tangible assets changes in the year 0 0 0
Right to use investment properties [Member] | Exchange difference and other tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Right to use investment properties [Member] | Additions transfer to discontinued operations tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Investment property [member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets 241 156 242
Cost of tangible assets 216 241 156
Accrued depreciation 27 17 23
Accrued depreciation 28 27 17
Impairment of tangible assets 39 15 17
Impairment of tangible assets 26 39 15
Tangible assets 174 124 201
Tangible assets 161 174 124
Investment property [member] | Additions tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 1 52 39
Accrued depreciation changes in the year 4 5 3
Impairment of tangible assets changes in the year (8) 31 2
Investment property [member] | Retirements tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (6) (10) (10)
Accrued depreciation changes in the year (2) (1) (1)
Impairment of tangible assets changes in the year 0 0 0
Investment property [member] | Acquisition of subsidiaries in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Investment property [member] | Disposal of entities in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Investment property [member] | Transfers of tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (2) (20) 0
Accrued depreciation changes in the year 1 (1) 1
Impairment of tangible assets changes in the year 0 (5) 0
Investment property [member] | Exchange difference and other tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (18) 63 (115)
Accrued depreciation changes in the year (2) 8 (9)
Impairment of tangible assets changes in the year (6) (2) (3)
Investment property [member] | Additions transfer to discontinued operations tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Tangible assets leased out under an operating lease [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets 1,158 800 582
Cost of tangible assets 1,085 1,158 800
Accrued depreciation 153 49 52
Accrued depreciation 206 153 49
Impairment of tangible assets 0 0 0
Impairment of tangible assets 0 0 0
Tangible assets 1,004 751 530
Tangible assets 879 1,004 751
Tangible assets leased out under an operating lease [Member] | Additions tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 157 369 238
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 1 1 0
Tangible assets leased out under an operating lease [Member] | Retirements tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (2) (63) (4)
Accrued depreciation changes in the year (1) (6) (1)
Impairment of tangible assets changes in the year 0 0 0
Tangible assets leased out under an operating lease [Member] | Acquisition of subsidiaries in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Tangible assets leased out under an operating lease [Member] | Disposal of entities in the year [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year 0 0 0
Tangible assets leased out under an operating lease [Member] | Transfers of tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year 0 0 0
Accrued depreciation changes in the year 5 0 0
Impairment of tangible assets changes in the year 0 0 0
Tangible assets leased out under an operating lease [Member] | Exchange difference and other tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Cost of tangible assets changes in the year (227) 53 (16)
Accrued depreciation changes in the year 48 111 (3)
Impairment of tangible assets changes in the year (1) (1) 0
Tangible assets leased out under an operating lease [Member] | Additions transfer to discontinued operations tangible assets [Member]      
Disclosure of Tangible assets breakdown by type of asset [Line Items]      
Accrued depreciation changes in the year 0 0 0
Impairment of tangible assets changes in the year € 0 € 0 € 0