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Income from operations - Employee benefit expenses (Detail) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income from operations [Line Items]      
Wages and salaries € 5,594 € 5,014 € 5,085
Share-based compensation costs 104 115 119
Post-employment benefits costs 439 396 418
Social security contributions 590 529 556
Voluntary social security contributions 225 192 111
Employee benefits expense € 6,952 € 6,246 € 6,289