Basis of preparation/impact of changes in accounting principles (Detail: Text Values) € in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2026
EUR (€)
|
Jun. 30, 2025
EUR (€)
|
Jun. 30, 2026
EUR (€)
|
Jun. 30, 2025
EUR (€)
|
|
| Application of the EU carve out version of IAS 39 [Abstract] | ||||
| Positive (negative) impact to profit before tax | € (688) | € (535) | € 166 | € (144) |
| Positive (negative) impact to profit after tax | € (496) | € (383) | € 119 | € (103) |
| Positive (negative) impact on CET capital ratio (in bps) | (0.0053) | (0.0075) | ||