v3.25.4
Note 8 Fair value of financial instruments at amortized cost by levels (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Fair value of financial instruments at amortized cost by levels [Line Items]        
Cash and cash equivalents € 58,837 € 51,145 € 75,416 € 79,756
Financial assets at amortised cost 568,893 502,400 451,732  
Debt instruments held at amortised cost 73,379 59,014 49,462  
Loans and advances at amortised cost 495,513 443,386 402,270  
Financial liabilities at amortised cost 658,599 584,339 557,589  
Deposits at amortised cost 556,498 496,720 473,835  
Debt instruments issued at amortised cost 81,842 69,867 68,707  
Other financial liabilities 20,258 17,753 15,046  
Carrying amount presented as fair value [Member]        
Fair value of financial instruments at amortized cost by levels [Line Items]        
Cash and cash equivalents 58,837 [1] 51,145 [2] 75,416 [3]  
Financial assets at amortised cost 40,224 [1] 32,615 [2] 34,826 [3]  
Debt instruments held at amortised cost 0 [1] 0 [2] 0 [3]  
Loans and advances at amortised cost 40,224 [1] 32,615 [2] 34,826 [3]  
Financial liabilities at amortised cost 416,378 [1] 378,530 [2] 358,657 [3]  
Deposits at amortised cost 396,119 [1] 360,777 [2] 343,611 [3]  
Debt instruments issued at amortised cost 0 [1] 0 [2] 0 [3]  
Other financial liabilities 20,258 [1] 17,753 [2] 15,046 [3]  
Level 1 Of Fair Value Hierarchy [Member]        
Fair value of financial instruments at amortized cost by levels [Line Items]        
Cash and cash equivalents 0 0 0  
Financial assets at amortised cost 65,255 50,771 41,950  
Debt instruments held at amortised cost 65,255 50,771 41,950  
Loans and advances at amortised cost 0 0 0  
Financial liabilities at amortised cost 42,578 47,323 42,742  
Deposits at amortised cost 0 0 1,269  
Debt instruments issued at amortised cost 42,578 47,323 41,472  
Other financial liabilities 0 0 0  
Level 2 Of Fair Value Hierarchy [Member]        
Fair value of financial instruments at amortized cost by levels [Line Items]        
Cash and cash equivalents 0 0 0  
Financial assets at amortised cost 25,873 24,157 10,533  
Debt instruments held at amortised cost 6,526 6,589 6,244  
Loans and advances at amortised cost 19,347 17,568 4,290  
Financial liabilities at amortised cost 86,123 58,016 86,390  
Deposits at amortised cost 49,084 37,647 62,049  
Debt instruments issued at amortised cost 37,039 20,369 24,341  
Other financial liabilities 0 0 0  
Level 3 Of Fair Value Hierarchy [Member]        
Fair value of financial instruments at amortized cost by levels [Line Items]        
Cash and cash equivalents 0 0 0  
Financial assets at amortised cost 437,577 394,496 359,062  
Debt instruments held at amortised cost 1,322 921 759  
Loans and advances at amortised cost 436,255 393,575 358,303  
Financial liabilities at amortised cost 115,369 101,025 68,127  
Deposits at amortised cost 112,053 98,038 64,601  
Debt instruments issued at amortised cost 3,316 2,986 3,526  
Other financial liabilities 0 0 0  
Aggregate of fair values [member]        
Fair value of financial instruments at amortized cost by levels [Line Items]        
Cash and cash equivalents 58,837 51,145 75,416  
Financial assets at amortised cost 568,929 502,039 446,371  
Debt instruments held at amortised cost 73,103 58,281 48,952  
Loans and advances at amortised cost 495,826 443,759 397,418  
Financial liabilities at amortised cost 660,447 584,894 555,915  
Deposits at amortised cost 557,256 496,461 471,530  
Debt instruments issued at amortised cost 82,932 70,679 69,339  
Other financial liabilities € 20,258 € 17,753 € 15,046  
[1]
(1) Financial instruments whose book value is presented as an approximation to their fair value, mainly short-term financial instruments.
[2]
(1) Financial instruments whose book value is presented as an approximation to their fair value, mainly short-term financial instruments.
[3]
(1) Financial instruments whose book value is presented as an approximation to their fair value, mainly short-term financial instruments.