v3.25.2
Fair value of assets and liabilities - Methods applied in determining fair values of financial assets and liabilities (carried at amortised cost) (Details) - EUR (€)
€ in Millions
Jun. 30, 2025
Dec. 31, 2024
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Loans and advances to banks € 50,080 € 21,770
Loans and advances to customers 693,285 683,611
Deposits from banks 20,891 16,723
Customer deposits 738,028 691,661
Debt securities in issue 151,016 142,367
Subordinated loans 16,566 17,878
Financial liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Deposits from banks 20,687 16,499
Customer deposits 738,021 691,287
Debt securities in issue 151,613 142,905
Subordinated loans 16,926 18,357
Financial liabilities 927,248 869,048
Financial liabilities | Level 1    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Deposits from banks
Customer deposits
Debt securities in issue 78,330 79,254
Subordinated loans 16,575 17,968
Financial liabilities 94,906 97,221
Financial liabilities | Level 2    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Deposits from banks 9,828 8,208
Customer deposits 82,524 61,916
Debt securities in issue 71,301 61,651
Subordinated loans 350 389
Financial liabilities 164,003 132,164
Financial liabilities | Level 3    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Deposits from banks 3,894 3,943
Customer deposits 43,890 46,984
Debt securities in issue 1,982 2,000
Subordinated loans
Financial liabilities 49,766 52,927
Financial liabilities | Carrying Amount    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Deposits from banks 20,891 16,723
Customer deposits 738,028 691,661
Debt securities in issue 151,016 142,367
Subordinated loans 16,566 17,878
Financial liabilities 926,501 868,630
Financial liabilities | Carrying amount presented as fair value    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Deposits from banks 6,966 4,348
Customer deposits 611,607 582,387
Debt securities in issue
Subordinated loans
Financial liabilities 618,573 586,735
Financial Assets    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Loans and advances to banks 50,044 21,766
Loans and advances to customers 677,357 667,410
Securities at amortised cost 52,349 48,303
Financial assets 779,750 737,479
Financial Assets | Level 1    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Loans and advances to banks
Loans and advances to customers
Securities at amortised cost 44,609 42,871
Financial assets 44,609 42,871
Financial Assets | Level 2    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Loans and advances to banks 42,891 15,614
Loans and advances to customers 12,328 18,626
Securities at amortised cost 4,803 2,908
Financial assets 60,022 37,149
Financial Assets | Level 3    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Loans and advances to banks 3,206 2,957
Loans and advances to customers 644,638 630,493
Securities at amortised cost 2,938 2,523
Financial assets 650,782 635,973
Financial Assets | Carrying Amount    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Loans and advances to banks 50,080 21,770
Loans and advances to customers 693,285 683,611
Securities at amortised cost 53,805 50,273
Financial assets 797,169 755,655
Financial Assets | Carrying amount presented as fair value    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Loans and advances to banks 3,947 3,195
Loans and advances to customers 20,391 18,291
Securities at amortised cost
Financial assets € 24,338 € 21,486