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 | 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 | 2023-04-01 to 2023-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||
| Segment information | ||||||||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                665,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,304,510,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,700,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,726,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,792,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,530,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,732,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,571,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                550,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,026,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,873,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |