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Long-Term Borrowings - Additional Information (Detail) - Aegon N.V [member] - EUR (€) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disclosure of long-term borrowings [Line Items] |  |
Long-term borrowing, market value | € 1,728 | € 1,649
Bottom of range [member] |  |
Disclosure of long-term borrowings [Line Items] |  |
Borrowing maturity | 4 years |
Long-term borrowing, interest rate | 1.00% |
Top of range [member] |  |
Disclosure of long-term borrowings [Line Items] |  |
Borrowing maturity | 19 years |
Long-term borrowing, interest rate | 6.625% |

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- Definition Disclosure of long-term borrowings. + References No definition available. + Details
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- Definition Long term debt fair value1 + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The maturity of borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_7&doctype=Standard -URIDate 2019-03-27 + Details
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- Details
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- Details
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- Details
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