Number of employees	12 Months Ended
Dec. 31, 2018
Text block [abstract]
Number of employees	19 Number of employees There were no employees employed by Aegon N.V. in 2018 (2017: nil).

The entire disclosure of information about number of employees.

No definition available.

Name:	aeg_DisclosureOfInformationAboutNumberOfEmployeesExplanatory
Namespace Prefix:	aeg_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration