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Share-based compensation - Summary of Expense Recognized in Consolidated Statement of Operations for Employee Share Based Payments (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Share Based Payments [Line Items]      
Cost of revenue € 7,077 € 5,865 € 5,042
Research and development 912 837 615
Sales and marketing 1,135 1,029 826
General and administrative 450 442 354
Share-based compensation 223 176 122
Employee Share-based Payments      
Disclosure Of Share Based Payments [Line Items]      
Cost of revenue 9 8 4
Research and development 119 84 61
Sales and marketing 41 34 27
General and administrative 54 50 30
Share-based compensation € 223 € 176 € 122