Note 07 - Gain and Losses on derecognition of Financial Assets at Amortized Cost (Detail) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Gain and Losses on derecognition of Financial Assets at Amortized Cost [Abstract]
Gains	€ 5	€ 11	€ 15
Losses	(101)	(13)	(15)
Net gains (losses) from derecognition of securities measured at amortized cost	€ 96	€ 2	€ 1

No definition available.

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- Definition

The gain (loss) arising from the derecognition of financial assets measured at amortised cost. [Refer: Financial assets at amortised cost]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 82
-Subparagraph aa
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_82_aa&doctype=Standard
-URIDate 2023-03-23

+ Details

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- Definition

The gain, recognised in the statement of comprehensive income, that arises from the derecognition of financial assets measured at amortised cost. [Refer: Financial assets at amortised cost]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 20A
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_20A&doctype=Standard
-URIDate 2023-03-23

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- Definition

The loss recognised in the statement of comprehensive income arising from the derecognition of financial assets measured at amortised cost. [Refer: Financial assets at amortised cost]

+ References

+ Details

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