v3.26.1
Note 5 Main margins and profit by operating segments (Details) - EUR (€)
€ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
income by operating segment [Line Items]    
Interest income (expense) € (15,164) € (12,607)
Gross profit 21,159 18,034
Profit (loss) before tax 9,581 8,424
Profit (loss), attributable to owners of parent [1] 6,051 5,447
SPAIN    
income by operating segment [Line Items]    
Interest income (expense) (3,346) (3,215)
Gross profit 5,147 4,990
Profit (loss) before tax 3,080 3,080
Profit (loss), attributable to owners of parent [1] 2,172 2,124
MEXICO    
income by operating segment [Line Items]    
Interest income (expense) (6,409) (5,511)
Gross profit 8,565 7,349
Profit (loss) before tax 4,195 3,573
Profit (loss), attributable to owners of parent [1] 2,979 2,571
TURKEY    
income by operating segment [Line Items]    
Interest income (expense) (2,152) (1,307)
Gross profit 3,372 2,409
Profit (loss) before tax 1,288 932
Profit (loss), attributable to owners of parent [1] 532 412
South America [Member]    
income by operating segment [Line Items]    
Interest income (expense) (2,952) (2,387)
Gross profit 3,308 2,719
Profit (loss) before tax 1,189 970
Profit (loss), attributable to owners of parent [1] 556 417
Rest of business [Member]    
income by operating segment [Line Items]    
Interest income (expense) (507) (369)
Gross profit 1,197 827
Profit (loss) before tax 652 410
Profit (loss), attributable to owners of parent [1] 508 314
Corporate Center And Adjustments [Member]    
income by operating segment [Line Items]    
Interest income (expense) 202 (182)
Gross profit (430) (260)
Profit (loss) before tax (822) (541)
Profit (loss), attributable to owners of parent [1] € (696) € (390)
[1]
(1) In the first quarter of 2026 certain immaterial balance sheet amounts related to specific activities undertaken by the business units were reallocated between the operating segments and the Corporate Center. As a result, certain immaterial income and expenses were reallocated, in particular, between Spain, Mexico, South America and Rest of Business and the Corporate Center. In order to make the period-on-period comparison homogeneous, the figures for year 2025 have been revised, which has not affected the consolidated financial information of the Group.