Notes - Segment Information
| Concept | As at 2024-09-30 | 2024-04-01 to 2024-09-30 | As at 2024-03-31 | 2023-04-01 to 2023-09-30 | 
|---|---|---|---|---|
| Notes - Segment information | ||||
| Segment information | ||||
| Revenue | ||||
| Revenue | — | 
                                                935,621,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                767,138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share of profit (loss) of investments accounted for using equity method | — | 
                                                1,448,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) before tax | — | 
                                                89,042,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                56,318,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                3,462,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,569,603,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Investments accounted for using equity method | 
                                                18,141,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — |