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Note 52 Fees for audits conducted and other related services (Details) - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Fees for audits conducted and other related services [Line Items]      
Audits of the companies audited by firms belonging to the kpmg worldwide organization and other reports related with the audit [1],[2] € 24.4 € 27.7 € 28.1
Other reports required pursuant to applicable legislation and tax regulations issued by the national supervisory bodies of the countries in which the group operates reviewed by firms belonging to kpmg [1] 1.5 1.3 1.5
Fees for audits conducted by other firms [1] € 0.2 € 0.2 € 0.0
[1] (*) Regardless of the billed year.
[2] (**) Including fees pertaining to annual legal audits (€21.0, €23.6 and €24.1 million as of December 31, 2021, 2020 and 2019, respectively).