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Note 42 Other operating expense (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of other operating expense [Line Items]      
Change in inventories € 151 € 124 € 107
Contribution To Guaranteed Banks Deposits Funds 829 800 746
Hiperinflation Adjustments other operating expense 585 348 538
Other operating expense 475 390 551
Miscellaneous other operating expense € 2,041 € 1,662 € 1,943