Proposal for Profit Appropriation - Additional Information (Detail) - Aegon Ltd. [member] - € / shares |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Disclosure of proposal profit appropriation [Line Items] | ||
| Interim dividend per share | € 0.19 | |
| Declaration Of Dividend Per Share Interim And Final [member] | ||
| Disclosure of proposal profit appropriation [Line Items] | ||
| Aggregate dividend interim and final per share | € 0.4 | |
| Common shares [member] | Dividend Distributed [member] | ||
| Disclosure of proposal profit appropriation [Line Items] | ||
| Dividends proposed as distributions to owners per share | € 0.21 | |
| Common share B [member] | Dividend Distributed [member] | ||
| Disclosure of proposal profit appropriation [Line Items] | ||
| Dividends proposed as distributions to owners per share | € 0.00525 |