Consolidated Statement Of Changes In Equity
| Concept | As at 2024-12-31 | 2024-07-01 to 2024-12-31 | As at 2024-06-30 | 2023-07-01 to 2023-12-31 | 
|---|---|---|---|---|
| Consolidated statement of changes in equity | ||||
| Statement of changes in equity | ||||
| Net assets | 
                                                20,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                20,723,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Changes during period | ||||
| Profit (loss) attributable to owners of parent | — | 
                                                835,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                739,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |