Note 32 - Common Shares - Dividends (Detail) - EUR (€) € / shares in Units, € in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Dividends
Cash dividends declared	€ 611,352,454	€ 413,000,000	€ 0
Cash dividends declared per common share (in EUR per share)	€ 0.30	€ 0.20	€ 0.00

The amount of dividends proposed or declared after the reporting period but before financial statements are authorised for issue. Such dividends are not recognised as a liability at the end of the reporting period because no obligation exists at that time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 10
-IssueDate 2022-03-24
-Paragraph 13
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=10&code=ifrs-tx-2022-en-r&anchor=para_13&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 137
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_137_a&doctype=Standard
-URIDate 2022-03-24

Name:	ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration