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Related Parties - Summary of Balances and Transactions (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of transactions between related parties [line items] |  |  |
Payables and other liabilities | € 433 | € 236 |
Associates And Joint Ventures In Which BBVA And Caixabank Hold Interest |  |  |
Disclosure of transactions between related parties [line items] |  |  |
Receivables and other assets | 5 | 9 |
Payables and other liabilities | 80 | 10 |
Revenue from operations | 13 | 16 | € 12
Expenses from operations | 2 | 0 | 0
Financial cost | € 1 | € 1 | € 1

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- Definition The amount of revenue arising from the rendering of services in related party transactions. [Refer: Revenue; Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2024-01-01 -Paragraph 21 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2024-en-r&anchor=para_21_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of payables due to related parties. [Refer: Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 78 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of receivables due from related parties. [Refer: Total for all related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 78 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Details
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