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Note 25 Equity impact (Details) - EUR (€)
€ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Equity impact [Line Items]      
Total impact on equity debit credit € (206) € 191 € 329
Defined benefit plans equity impact [Member]      
Equity impact [Line Items]      
Total impact on equity debit credit 52 161 254
Post employment medical benefits equity impact [Member]      
Equity impact [Line Items]      
Total impact on equity debit credit € (257) € 30 € 74