Financing Net Investment Result - Summary of Financing Net Investment Result (Detail) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Statement 1 [Line Items]
Interest charges	€ (182)	€ (182)
Other financing income		5
On December 31	(182)	(178)
Net fair value change of derivatives		(129)
Net foreign currency gains and (losses)	2	(1)
Total	6,929	(10,656)
Aegon Ltd. [member]
Statement 1 [Line Items]
Net fair value change of derivatives	19	(30)
Net foreign currency gains and (losses)	1	0
Total	€ 21	€ (30)

The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]]

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