XML 289 R273.htm IDEA: XBRL DOCUMENT v3.22.0.1
Note 52 Other services rendered (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Other services rendered [Line Items]      
Firms belonging to the kpmg worldwide organization € 0.2 € 0.4 € 0.3