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Note 43 Gains (losses) from non current assets and disposal groups classified as held for sale not qualifying as discontinued operations (Details) - EUR (€)
€ in Millions
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Disclosure of Profit or loss from non-current assets and disposal groups classified as held for sale not qualifying as discontinued operations [Line Items]    
Net Gains Loss On Sales Of Real State € 27 € 53
Impairment Of Non Current Assets Held For Sale 2 (173)
Gains losses on sale of investments classified as non current assets held for sale 0 0
Profit or loss from non current assets and disposal groups classified as held for sale not qualifying as discontinued operations € 29 € (120)