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Intangible assets - Schedule off goodwill allocation to group of CGUs (Details) - Cash generating unit - EUR (€)
€ in Millions
Dec. 31, 2023
Dec. 31, 2022
Disclosure of detailed information about intangible assets [line items]    
Goodwill € 469 € 464
Retail Netherlands    
Disclosure of detailed information about intangible assets [line items]    
Discount rate 8.80%  
Terminal growth rate 2.20%  
Goodwill € 30 30
Retail Germany    
Disclosure of detailed information about intangible assets [line items]    
Discount rate 8.68%  
Terminal growth rate 2.00%  
Goodwill € 349 349
Retail Poland    
Disclosure of detailed information about intangible assets [line items]    
Discount rate 10.44%  
Terminal growth rate 2.40%  
Goodwill € 75 69
Retail Romania    
Disclosure of detailed information about intangible assets [line items]    
Discount rate 12.72%  
Terminal growth rate 2.60%  
Goodwill € 15 € 15