v3.26.1
Debt securities - Schedule of debt instruments by issuer rating (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Debt Instruments      
Financial assets € 300,026 € 283,497 € 243,203
Financial assets (as a percent)   100.00% 100.00%
Debt securities      
Debt Instruments      
Financial assets € 300,026 € 283,497 € 243,203
Financial assets (as a percent) 100.00% 100.00% 100.00%
Private fixed income      
Debt Instruments      
Financial assets € 63,816 € 61,831 € 57,150
Public fixed income      
Debt Instruments      
Financial assets 236,210 221,666 186,053
AAA | Debt securities      
Debt Instruments      
Financial assets € 25,272 € 23,329 € 23,039
Financial assets (as a percent) 8.42% 8.23% 9.47%
AAA | Private fixed income      
Debt Instruments      
Financial assets € 15,952 € 16,889 € 15,152
AAA | Public fixed income      
Debt Instruments      
Financial assets 9,320 6,440 7,887
AA | Debt securities      
Debt Instruments      
Financial assets € 62,049 € 64,226 € 51,846
Financial assets (as a percent) 20.68% 22.65% 21.32%
AA | Private fixed income      
Debt Instruments      
Financial assets € 19,598 € 16,972 € 15,142
AA | Public fixed income      
Debt Instruments      
Financial assets 42,451 47,254 36,704
A | Debt securities      
Debt Instruments      
Financial assets € 108,743 € 97,870 € 79,287
Financial assets (as a percent) 36.24% 34.53% 32.60%
A | Private fixed income      
Debt Instruments      
Financial assets € 13,206 € 10,056 € 11,175
A | Public fixed income      
Debt Instruments      
Financial assets 95,537 87,814 68,112
BBB | Debt securities      
Debt Instruments      
Financial assets € 56,938 € 53,383 € 46,922
Financial assets (as a percent) 18.98% 18.83% 19.29%
BBB | Private fixed income      
Debt Instruments      
Financial assets € 6,872 € 8,900 € 7,749
BBB | Public fixed income      
Debt Instruments      
Financial assets 50,066 44,483 39,173
Below BBB | Debt securities      
Debt Instruments      
Financial assets € 43,888 € 41,218 € 38,831
Financial assets (as a percent) 14.63% 14.54% 15.97%
Below BBB | Private fixed income      
Debt Instruments      
Financial assets € 5,052 € 5,543 € 4,654
Below BBB | Public fixed income      
Debt Instruments      
Financial assets 38,836 35,675 34,177
Unrated | Debt securities      
Debt Instruments      
Financial assets € 3,136 € 3,471 € 3,278
Financial assets (as a percent) 1.05% 1.22% 1.35%
Unrated | Private fixed income      
Debt Instruments      
Financial assets € 3,136 € 3,471 € 3,278
Unrated | Public fixed income      
Debt Instruments      
Financial assets € 0 € 0 € 0