Disclosure Of Earnings Per Share [Text Block]
| Concept | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|
| Disclosure of earnings per share [text block] | 
                                                Retraitement du résultat net par action de l’exercice clos le 31décembre 2023
                                                
                                             | — | 
| Earnings per share [text block] | — | — | 
| Earnings per share [abstract] | ||
| Earnings per share [line items] | ||
| Basic earnings per share [abstract] | ||
| Basic earnings (loss) per share from continuing operations | 
                                                33.00
                                                
                                             | 
                                                40.00
                                                
                                             | 
| Basic earnings (loss) per share from discontinued operations | 
                                                25.00
                                                
                                             | 
                                                40.00
                                                
                                             | 
| Basic earnings (loss) per share | 
                                                58.00
                                                
                                             | 
                                                80.00
                                                
                                             | 
| Diluted earnings per share [abstract] | ||
| Diluted earnings (loss) per share from continuing operations | 
                                                33.00
                                                
                                             | 
                                                40.00
                                                
                                             | 
| Diluted earnings (loss) per share from discontinued operations | 
                                                25.00
                                                
                                             | 
                                                40.00
                                                
                                             | 
| Diluted earnings (loss) per share | 
                                                58.00
                                                
                                             | 
                                                80.00
                                                
                                             | 
| Weighted average ordinary shares used in calculating basic and diluted earnings per share [abstract] | ||
| Weighted average number of ordinary shares used in calculating basic earnings per share | 
                                                490 293 903
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                355 431 742
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Adjustments to reconcile profit (loss) to numerator used in calculating earnings per share [abstract] | ||
| Profit (loss), attributable to owners of parent | 
                                                282,000,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                285,000,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Disclosure of depositary receipts [text block] | — | — | 
| Disclosure of depositary receipts [abstract] | ||
| Disclosure of depositary receipts [line items] |