v3.26.1
Non-current assets - Disclosure of Non Current Assets (Detail) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Non Current Assets [Line Items]      
Lease assets € 137 € 162 € 150
Reimbursement rights 28 9  
Aegon Ltd. [member]      
Disclosure Of Non Current Assets [Line Items]      
Lease assets 19 26  
Reimbursement rights 16 5  
Property, Plant & Equipment 18 9  
Non-current assets € 53 € 40