v3.25.2
Additional disclosure requirements - Condensed Cash Flow Statements (Details) - EUR (€)
€ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
1. Cash flows from operating activities      
Consolidated profit € 7,463 € 6,592  
Adjustments to profit 17,400 13,925  
Net increase/decrease in operating assets (33,806) (82,440)  
Net increase/decrease in operating liabilities 12,664 3,232  
Reimbursements/payments of income tax (1,117) (1,481)  
CASH FLOWS FROM OPERATING ACTIVITIES 2,604 (60,172)  
2. Cash flows from investing activities      
Investments (-) (4,247) (6,034)  
Divestments (+) 3,684 3,733  
CASH FLOWS FROM INVESTING ACTIVITIES (563) (2,301)  
3. Cash flows from financing activities      
Issuance of own equity instruments 0 0  
Disposal of own equity instruments 542 471  
Acquisition of own equity instruments (2,021) (2,159)  
Dividends paid (1,643) (1,485)  
CASH FLOWS FROM FINANCING ACTIVITIES (8,058) (4,173)  
Effect of exchange rate changes on cash and cash equivalents (8,185) 2,538  
NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS (14,202) (64,108)  
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 192,208    
CASH AND CASH EQUIVALENTS AT END OF PERIOD 175,555 156,234 € 192,208
Banco Santander S.A. | Reportable legal entities      
1. Cash flows from operating activities      
Consolidated profit 5,591 5,402  
Adjustments to profit 1,254 (2,740)  
Net increase/decrease in operating assets (15,128) (45,848)  
Net increase/decrease in operating liabilities 3,812 (11,864)  
Reimbursements/payments of income tax 926 1,063  
CASH FLOWS FROM OPERATING ACTIVITIES (3,545) (53,987)  
2. Cash flows from investing activities      
Investments (-) (1,334) (1,850)  
Divestments (+) 4,186 4,285  
CASH FLOWS FROM INVESTING ACTIVITIES 2,852 2,435  
3. Cash flows from financing activities      
Issuance of own equity instruments 0 0  
Disposal of own equity instruments 316 302  
Acquisition of own equity instruments (1,903) (2,032)  
Issuance of debt securities 305 3,908  
Redemption of debt securities (3,802) (2,994)  
Dividends paid (1,643) (1,485)  
Issuance/Redemption of equity instruments 0 0  
Other collections/payments related to financing activities (144) (151)  
CASH FLOWS FROM FINANCING ACTIVITIES (6,871) (2,452)  
Effect of exchange rate changes on cash and cash equivalents (4,070) 1,156  
NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS (11,634) (52,848)  
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 97,457 125,020 125,020
CASH AND CASH EQUIVALENTS AT END OF PERIOD € 85,823 € 72,172 € 97,457