v3.25.4
Fair Value of Financial Instruments not carried at Fair Value (Detail) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Financial liabilities:      
Deposits € 695,000 € 668,000 € 625,000
Carrying amount | Total Levels of Fair Value Hierarchy      
Financial assets:      
Cash and central bank balances [1] 164,659 147,494  
Interbank balances (w/o central banks) [1] 6,962 6,160  
Central bank funds sold and securities purchased under resale agreements [1] 37,509 40,803  
Securities borrowed [1] 6 44  
Loans [1] 478,214 483,897  
Other financial assets [1] 158,129 92,572  
Financial liabilities:      
Deposits [1] 694,580 667,700  
Central bank funds purchased and securities sold under repurchase agreements [1] 4,177 3,740  
Securities loaned [1] 2 2  
Other short-term borrowings [1] 18,204 9,895  
Other financial liabilities [1] 123,451 79,371  
Long-term debt [1] 114,754 114,899  
Trust preferred securities [1] 283 287  
Fair value | Total Levels of Fair Value Hierarchy      
Financial assets:      
Cash and central bank balances [1] 164,659 147,494  
Interbank balances (w/o central banks) [1] 6,962 6,160  
Central bank funds sold and securities purchased under resale agreements [1] 37,535 40,923  
Securities borrowed [1] 6 44  
Loans [1] 466,128 470,058  
Other financial assets [1] 157,433 91,214  
Financial liabilities:      
Deposits [1] 694,445 667,609  
Central bank funds purchased and securities sold under repurchase agreements [1] 4,173 3,727  
Securities loaned [1] 2 2  
Other short-term borrowings [1] 18,211 9,903  
Other financial liabilities [1] 123,451 79,371  
Long-term debt [1] 115,463 114,496  
Trust preferred securities [1] 297 273  
Fair value | Quoted
prices in
active market
(Level 1)      
Financial assets:      
Cash and central bank balances [1] 164,659 147,494  
Interbank balances (w/o central banks) [1] 0 0  
Central bank funds sold and securities purchased under resale agreements [1] 0 0  
Securities borrowed [1] 0 0  
Loans [1] 0 0  
Other financial assets [1] 29,214 12,063  
Financial liabilities:      
Deposits [1] 1 2  
Central bank funds purchased and securities sold under repurchase agreements [1] 0 0  
Securities loaned [1] 0 0  
Other short-term borrowings [1] 0 0  
Other financial liabilities [1] 2,381 2,237  
Long-term debt [1] 0 0  
Trust preferred securities [1] 0 0  
Fair value | Valuation
technique
observable
parameters
(Level 2)      
Financial assets:      
Cash and central bank balances [1] 0 0  
Interbank balances (w/o central banks) [1] 6,962 6,160  
Central bank funds sold and securities purchased under resale agreements [1] 37,535 40,923  
Securities borrowed [1] 6 44  
Loans [1] 13,175 13,338  
Other financial assets [1] 127,730 78,482  
Financial liabilities:      
Deposits [1] 694,445 667,607  
Central bank funds purchased and securities sold under repurchase agreements [1] 4,173 3,727  
Securities loaned [1] 2 2  
Other short-term borrowings [1] 18,211 9,903  
Other financial liabilities [1] 121,070 77,134  
Long-term debt [1] 113,663 112,033  
Trust preferred securities [1] 297 273  
Fair value | Valuation
technique
unobservable
parameters
(Level 3)      
Financial assets:      
Cash and central bank balances [1] 0 0  
Interbank balances (w/o central banks) [1] 0 0  
Central bank funds sold and securities purchased under resale agreements [1] 0 0  
Securities borrowed [1] 0 0  
Loans [1] 452,954 456,720  
Other financial assets [1] 490 669  
Financial liabilities:      
Deposits [1] 0 0  
Central bank funds purchased and securities sold under repurchase agreements [1] 0 0  
Securities loaned [1] 0 0  
Other short-term borrowings [1] 0 0  
Other financial liabilities [1] 0 0  
Long-term debt [1] 1,800 2,463  
Trust preferred securities [1] € 0 € 0  
[1] Amounts are generally presented on a gross basis, in line with the Group’s accounting policy regarding offsetting of financial instruments as described in “Note 01 –
Material accounting policies and critical accounting estimates”