Loans to Group Companies - Summary of Loans to Group Companies (Detail) - Aegon Ltd. [member] - EUR (€) € in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure of Loans to Subsidiaries Joint Ventures and Associates [Line items] | ||
| Beginning balance | € 330 | € 780 |
| Additions / (redemptions) | (279) | (490) |
| Net exchange differences | (38) | 40 |
| Ending balance | 13 | 330 |
| Current | 13 | 83 |
| Non-current | € 0 | € 246 |