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Costs - Payroll and related costs (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Costs      
Wages and salaries € 2,311 € 2,182 € 2,193
Social security contributions 465 455 458
Cost related to employee benefit plans 174 165 102
Other costs 194 204 239
Payroll and related costs gross 3,144 3,006 2,992
Capitalized direct costs associated with self-constructed assets - tangible assets (120) (111) (118)
Capitalized direct costs associated with self-constructed assets - intangible assets (9) (7) (11)
Payroll and related costs € 3,015 € 2,888 € 2,863