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Investments in Joint Ventures and Associates - Additional information (Detail) - EUR (€) € in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Jan. 01, 2018 | [1] | Dec. 31, 2017
Disclosure of joint ventures [Line Items] |  |  |  |  |
Disposals | € 1 | € 211 |  |  |
Investments in joint ventures | 1,983 | 1,745 | [1] | € 1,712 | € 1,712
Carrying value of joint ventures investment net of provision |  | 1,729 |  |  |
Negative carrying value of joint ventures investment reclassified to Provisions |  | 16 |  |  |
Amvest [member] |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Disposals |  | 211 |  |  |
Investments in joint ventures | € 1,159 | € 1,001 |  |  |
[1] | Amounts have been restated to reflect voluntary changes in accounting policies related to liability adequacy testing that was adopted by Aegon effective January 1, 2019. Refer to note 2.1.2 Voluntary changes in accounting policies for details about this change.

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- Definition Carrying value of iInvestments in joint ventures reclassified to provisions. + References No definition available. + Details
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- Definition Investments in joint ventures disposals. + References No definition available. + Details
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- Definition Investments in joint ventures net of carrying values reclassified to provisions. + References No definition available. + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of investments in joint ventures in an entity's separate financial statements. [Refer: Joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2019-01-01 -Paragraph 10 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2019-en-r&anchor=para_10&doctype=Standard -URIDate 2019-03-27 + Details
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- Details
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