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Loans and advances to customers - Summary of loans and advances to customers (Details) - EUR (€) € in Millions | Jun. 30, 2024 | Dec. 31, 2023
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Disclosure of detailed information about financial instruments [line items] |  |
Loans and advances to customers before provisions | € 668,588 | € 652,933
Loans and advances to customers | 662,687 | 647,313
Loans and advances to customers |  |
Disclosure of detailed information about financial instruments [line items] |  |
Loan loss provisions | (5,901) | (5,621)
Loans to public authorities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Loans and advances to customers before provisions | 17,475 | 14,384
Residential mortgages |  |
Disclosure of detailed information about financial instruments [line items] |  |
Loans and advances to customers before provisions | 339,358 | 329,506
Other personal lending |  |
Disclosure of detailed information about financial instruments [line items] |  |
Loans and advances to customers before provisions | 35,360 | 36,571
Corporate Lending |  |
Disclosure of detailed information about financial instruments [line items] |  |
Loans and advances to customers before provisions | € 276,394 | € 272,472

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- Definition The amount of loans and advances the entity has made to customers. + 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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