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Goodwill and intangible assets - Additional Information (Details)
€ in Millions
 12 Months Ended
Dec. 31, 2021
EUR (€)
segment
Dec. 31, 2020
EUR (€)
Dec. 31, 2019
EUR (€)
Disclosure Of Goodwill And Indefinite Lived Assets [Line Items]      
Number of operating segments | segment 2    
Percentage of weightings 50.00%    
Research and Development      
Disclosure Of Goodwill And Indefinite Lived Assets [Line Items]      
Amortization expense | € € 25 € 18 € 14
Income Approach | Premium      
Disclosure Of Goodwill And Indefinite Lived Assets [Line Items]      
Discount rate 7.50%    
Income Approach | Ad-Supported      
Disclosure Of Goodwill And Indefinite Lived Assets [Line Items]      
Discount rate 9.50%    
Market Approach | Bottom of Range      
Disclosure Of Goodwill And Indefinite Lived Assets [Line Items]      
Revenue multiple used to estimate enterprise value 3.0    
Market Approach | Top of Range      
Disclosure Of Goodwill And Indefinite Lived Assets [Line Items]      
Revenue multiple used to estimate enterprise value 7.0