v3.26.1
Loans and advances to central banks and credit institutions - Schedule of loans and advances to banks and credit institutions (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of financial assets [line items]      
Financial assets held for trading € 252,318 € 230,253 € 176,921
Non-trading financial assets mandatorily at fair value through profit or loss 7,761 6,130 5,910
Financial assets at fair value through other comprehensive income 74,612 89,898 83,308
Financial assets at amortised cost 1,202,689 1,203,707 1,191,403
Total financial assets 300,026 283,497 243,203
Gross carrying amount | Reverse repurchase agreements      
Disclosure of financial assets [line items]      
Total financial assets 73,980 59,648 44,184
Gross carrying amount | Impaired assets      
Disclosure of financial assets [line items]      
Total financial assets 31,577 33,731 34,094
Accumulated impairment      
Disclosure of financial assets [line items]      
Total financial assets (520) (349) (286)
Central banks      
Disclosure of financial assets [line items]      
Financial assets held for trading 14,632 12,966 17,717
Non-trading financial assets mandatorily at fair value through profit or loss 0 0 0
Financial assets designated at fair value through profit or loss 0 0 0
Financial assets at fair value through other comprehensive income 0 0 0
Financial assets at amortised cost 15,986 16,179 20,082
Total financial assets 30,618 29,145 37,799
Central banks | Gross carrying amount | Time deposits      
Disclosure of financial assets [line items]      
Total financial assets 15,986 16,179 17,747
Central banks | Gross carrying amount | Reverse repurchase agreements      
Disclosure of financial assets [line items]      
Total financial assets 14,632 12,966 20,052
Central banks | Gross carrying amount | Impaired assets      
Disclosure of financial assets [line items]      
Total financial assets 0 0 0
Central banks | Gross carrying amount | Valuation adjustments for impairment      
Disclosure of financial assets [line items]      
Total financial assets 0 0 0
Credit institutions      
Disclosure of financial assets [line items]      
Financial assets held for trading 25,967 27,314 14,061
Non-trading financial assets mandatorily at fair value through profit or loss 0 0 0
Financial assets designated at fair value through profit or loss 413 408 459
Financial assets at fair value through other comprehensive income 1,120 363 313
Financial assets at amortised cost 61,513 55,537 57,917
Total financial assets 89,013 83,622 72,750
Credit institutions | Gross carrying amount | Time deposits      
Disclosure of financial assets [line items]      
Total financial assets 10,665 9,036 8,560
Credit institutions | Gross carrying amount | Reverse repurchase agreements      
Disclosure of financial assets [line items]      
Total financial assets 52,365 48,932 35,846
Credit institutions | Gross carrying amount | Non- loans advances      
Disclosure of financial assets [line items]      
Total financial assets 25,987 25,659 28,353
Credit institutions | Gross carrying amount | Impaired assets      
Disclosure of financial assets [line items]      
Total financial assets 0 0 0
Credit institutions | Accumulated impairment | Valuation adjustments for impairment      
Disclosure of financial assets [line items]      
Total financial assets (4) (5) (9)
Central banks and credit institutions      
Disclosure of financial assets [line items]      
Total financial assets 119,631 112,767 110,549
Central banks and credit institutions | Euro      
Disclosure of financial assets [line items]      
Total financial assets 43,697 43,347 34,229
Central banks and credit institutions | Pound sterling      
Disclosure of financial assets [line items]      
Total financial assets 5,147 2,424 3,539
Central banks and credit institutions | US dollar      
Disclosure of financial assets [line items]      
Total financial assets 23,320 22,539 17,602
Central banks and credit institutions | Brazilian real      
Disclosure of financial assets [line items]      
Total financial assets 43,577 39,379 47,151
Central banks and credit institutions | Other currencies      
Disclosure of financial assets [line items]      
Total financial assets € 3,890 € 5,078 € 8,028