Defined benefit contribution paid.

No definition available.

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Period Type:	duration

- Definition

Defined benefit plan target asset allocation percentage.

+ References

No definition available.

+ Details

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- Definition

Defined benefit plan target liability allocation percentage.

+ References

No definition available.

+ Details

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- Definition

Defined benefit plans deficit

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Defined benefit unfunded plans.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Number of pension plans.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Remaining average duration of defined benefits obligation.

+ 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 members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of employer contributions to retirement benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 26
-IssueDate 2022-03-24
-Paragraph 35
-Subparagraph b
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2022-en-r&anchor=para_35_b_i&doctype=Standard
-URIDate 2022-03-24

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 140
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_140_a&doctype=Standard
-URIDate 2022-03-24

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 57
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_57_a&doctype=Standard
-URIDate 2022-03-24

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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- Details

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- Details

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- Details

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- Details

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Defined Benefit Plans - Additional Information (Detail) € in Millions	1 Months Ended	12 Months Ended
	Aug. 31, 2021 EUR (€)	Dec. 31, 2022 EUR (€) yr Plans	Dec. 31, 2021 EUR (€) yr	Dec. 31, 2020 EUR (€)
Disclosure of defined benefit plans [Line Items]
Plan benefit liability		€ 409	€ 3,824	€ 4,593
Defined benefit plan deficit		€ (15)	€ 112
Aegon United Kingdom [member]
Disclosure of defined benefit plans [Line Items]
Remaining average duration of defined benefits obligation \| yr		15.3	21
Defined benefit plan deficit		€ 87	€ 119
Contributions were paid into scheme		€ 38	€ 73
Percentage of investment assets allocation in primary equities			17.00%
Percentage of investment liability allocation in fixed interest and inflation-linked bonds and related derivatives		83.00%
Transamerica Corporation [member]
Disclosure of defined benefit plans [Line Items]
Defined benefit plans deficit		€ (102)	€ (7)
Employer contribution to pension plan	€ 91
Number of benefit plans \| Plans		2
Remaining average duration of defined benefits obligation \| yr		9.8	12.9
Transamerica Corporation [member] \| United States [member] \| Supplemental pension and retirement plan [member]
Disclosure of defined benefit plans [Line Items]
Defined benefit plans unfunded		€ 197	€ 235
Transamerica Corporation [member] \| United States [member] \| Post employment healthcare benefits [member]
Disclosure of defined benefit plans [Line Items]
Plan benefit liability		€ 184	€ 220