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Income (expense) from investments (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income (expense) from investments      
Dividends € 247 € 231 € 205
Net gain (loss) on disposals 19 22 163
Other net income (expense) 15 910 (33)
Other gain (loss) from investments € 281 € 1,163 € 335