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Equity - Share of equity method investments additional information (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of equity [Line Items] |  |  |
Share of associates, joint ventures and other reserves includes non-distributable profits from associates and joint ventures | € 815 | € 797 | € 738
Legal and statutory reserves |  |  |
Disclosure of equity [Line Items] |  |  |
Increase (decrease) in equity | (998) |  |
Share of associates, joint ventures and other reserves |  |  |
Disclosure of equity [Line Items] |  |  |
Transfer to/from retained earnings | (892) | 26 | (21)
Software and other intangible assets |  |  |
Disclosure of equity [Line Items] |  |  |
Legal reserve | 628 | 540 | 573
Stichting Regio Bank and Stichting Vakbondsspaarbank SPN |  |  |
Disclosure of equity [Line Items] |  |  |
Legal and statutory reserves | € 1,602 | € 2,264 | € 2,103

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- Definition The increase (decrease) in equity. [Refer: Equity] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d&doctype=Standard -URIDate 2023-03-23 + 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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- Definition A component of equity representing reserves created based on legal requirements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition Legal Reserve + References No definition available. + Details
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- Definition Share Of Associates, Joing Venture And Other Reserves Including Non-Distributable Profits From Associates and Joint Ventures + References No definition available. + Details
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- Details
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- Details
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- Details
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