Notes - Segment Information, Etc.
| Concept | 2023-10-01 to 2024-09-30 | 2023-10-01 to 2024-09-30 | 2023-10-01 to 2024-09-30 | 2023-10-01 to 2024-09-30 | 2023-10-01 to 2024-09-30 | 2022-10-01 to 2023-09-30 | 2022-10-01 to 2023-09-30 | 2022-10-01 to 2023-09-30 | 2022-10-01 to 2023-09-30 | 2022-10-01 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 | 
                                                25,727,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,727,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                86,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,640,166,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,113,010,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,044,775,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,113,010,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,724,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,724,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,724,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                813,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                813,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -813,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |