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Note 27	12 Months Ended
Note 27	Dec. 31, 2022
Share premium [Abstract]
Disclosure of Share Premium [Text Block]	Share premium As of December 31, 2022, the balance under this heading in the consolidated balance sheets was €20,856 million. As of December 31, 2021 and 2020, the balance under this heading was €23,599 and €23,992 million, respectively (see Note 4). The amended Spanish Corporation Act expressly permits the use of the share premium balance to increase capital and establishes no specific restrictions as to its use (see Note 26).