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Personnel expenses (Tables)
12 Months Ended
Dec. 31, 2021
Classes of employee benefits expense [abstract]  
Summary of personnel expenses
202120202019
(in € millions, except
employee data)
Wages and salaries860 694 541 
Social costs85 265 111 
Contributions to retirement plans40 32 26 
Share-based compensation223 176 122 
Other employee benefits124 97 88 
Total1,332 1,264 888 
Average full-time employees6,6175,5844,405