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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, 2019
Dec. 31, 2018
Other financial assets    
Financial assets at beginning of period € 430 € 730
Additions 11 279
Deductions (88) (596)
Currency translation differences 7 17
Other changes 19  
Financial assets at end of period € 379 € 430