XML 412 R259.htm IDEA: XBRL DOCUMENT
v3.20.1

Other Assets and Receivables - Additional Information (Detail) - EUR (€) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of other assets and receivables [Line Items] |  |  |
Carrying value under historical cost model | € 489,000,000 | € 498,000,000 | € 530,000,000
Percentage of general account real estate held for own use | 51.00% | 57.00% |
Property, plant and equipment, pledged as security | € 0 |  |
Property, plant and equipment, restrictions on title | 0 |  |
Accrued income | 1,442,000,000 | € 1,421,000,000 |
Historical cost model [member] |  |  |
Disclosure of other assets and receivables [Line Items] |  |  |
Carrying value under historical cost model | € 231,000,000 | € 301,000,000 |
Independent external appraisers [member] |  |  |
Disclosure of other assets and receivables [Line Items] |  |  |
Percentage of appraisals for real estate held for own use | 99.00% | 99.00% |
Equipment 1 [member] |  |  |
Disclosure of other assets and receivables [Line Items] |  |  |
Carrying value under historical cost model | € 281,000,000 | € 235,000,000 | € 223,000,000
Bottom of range [member] | Buildings [member] |  |  |
Disclosure of other assets and receivables [Line Items] |  |  |
Useful lives and depreciated period | P40Y |  |
Bottom of range [member] | Equipment 1 [member] |  |  |
Disclosure of other assets and receivables [Line Items] |  |  |
Property, plant and equipment, pledged as security | € 0 |  |
Property, plant and equipment, restrictions on title | € 0 |  |
Useful lives and depreciated period | P3Y |  |
Top of range [member] | Buildings [member] |  |  |
Disclosure of other assets and receivables [Line Items] |  |  |
Useful lives and depreciated period | P50Y |  |
Top of range [member] | Equipment 1 [member] |  |  |
Disclosure of other assets and receivables [Line Items] |  |  |
Property, plant and equipment, pledged as security | € 0 |  |
Property, plant and equipment, restrictions on title | € 0 |  |
Useful lives and depreciated period | P5Y |  |

X
- Definition Disclosure of other assets and receivables. + References No definition available. + Details
Name: | aeg_DisclosureOfOtherAssetsAndReceivablesLineItems
Namespace Prefix: | aeg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of appraisals for property plant and equipment. + References No definition available. + Details
Name: | aeg_PercentageOfAppraisalsForPropertyPlantAndEquipment
Namespace Prefix: | aeg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of property plant and equipment revaluation. + References No definition available. + Details
Name: | aeg_PercentageOfPropertyPlantAndEquipmentRevaluation
Namespace Prefix: | aeg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Useful lives and depreciated period. + References No definition available. + Details
Name: | aeg_UsefulLivesAndDepreciatedPeriod
Namespace Prefix: | aeg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of current accrued income. [Refer: Accrued income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_CurrentAccruedIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2019-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2019-en-r&anchor=para_73_e&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_a&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_PropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of property, plant and equipment pledged as security for liabilities. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2019-01-01 -Paragraph 74 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2019-en-r&anchor=para_74_a&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of property, plant and equipment subject to restrictions on title. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2019-01-01 -Paragraph 74 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2019-en-r&anchor=para_74_a&doctype=Standard -URIDate 2019-03-27 + Details
Name: | ifrs-full_PropertyPlantAndEquipmentRestrictionsOnTitle
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_MeasurementAxis=ifrs-full_CostApproachMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MeasurementAxis=aeg_IndependentExternalAppraisersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=aeg_Equipment1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_BuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |