Statement Of Changes In Equity [Abstract]
| Concept | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — | — | 
                                                145,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                716,707,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                1,352,066,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1,775,304,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                188,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                238,444,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                16,949,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1,326,734,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                315,746,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                146,239,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1,565,178,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                42,404,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                145,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                2,278,087,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                271,260,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                1,873,598,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                188,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                5,305,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                228,856,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                145,751,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                315,746,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                1,913,063,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                903,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                495,951,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1,844,765,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                621,651,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                146,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                10,772,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1,417,112,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                133,569,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                315,746,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                873,604,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                873,604,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                80,884,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                792,720,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1,809,834,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                1,656,495,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                153,339,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1,656,495,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Other comprehensive income | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                11,156,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                11,644,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                506,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                11,662,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                488,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                16,849,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                18,408,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                758,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                1,559,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                5,468,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
                                                12,182,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Comprehensive income | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                884,760,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                11,644,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                873,604,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                80,378,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                804,382,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                488,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1,826,683,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                1,674,903,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                758,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                151,780,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1,656,495,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                5,468,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
                                                12,182,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Issue of equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                42,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                42,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                42,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Increase (decrease) through other changes, equity | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                716,707,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                717,249,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                542,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                106,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                717,143,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                15,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                14,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                1,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                12,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                3,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                1,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                47,419,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                98,294,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                50,875,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                47,668,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                249,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                45,010,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                27,900,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                72,910,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                936,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                28,836,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Increase (decrease) through share-based payment transactions, equity | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1,000,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                1,000,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                1,000,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | 
                                                1,007,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                1,007,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                1,007,000
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        EUR
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — |