Other Current Assets - Additional Information (Detail) - Aegon Ltd. [member] - EUR (€) € in Millions	Dec. 31, 2025	Dec. 31, 2024
Disclosure of other assets [Line Items]
Other current assets include derivatives	€ 9	€ 32
Fair value [member]
Disclosure of other assets [Line Items]
Other current assets include derivatives	€ 4	€ 26

The amount of current assets that the entity does not separately disclose in the same statement or note. [Refer: Current assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_OtherCurrentAssets
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant