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Note 29 - Treasury Shares Shares Owned By Third Parties But Managed (Details) - EUR (€) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Shares Owned By Third Parties But Managed By The Group Abstract |  |  |
Number Of Shares Owned By Third Parties | 18,266,509 | 23,807,398 | 25,306,229
Par Value Per Share | € 0.49 | € 0.49 | € 0.49
Percentage Share Capital | 0.27% | 0.36% | 0.38%

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