Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||
| Segment information | ||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                2,550,192,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,618,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,458,324,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,210,558,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,837,582,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,162,380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,378,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,162,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,535,992,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,238,583,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,450,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                521,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                126,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                674,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,074,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                589,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                762,326,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |