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Other financial assets - Financing receivables net of allowance for doubtful accounts (Details) - Accumulated impairment - Financing receivables held for operating and non operating purpose - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Other financial assets    
Financial assets at beginning of period € 379 € 430
Additions 7 11
Deductions (7) (88)
Currency translation differences (26) 7
Other changes (1) 19
Financial assets at end of period € 352 € 379