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 | 
                                                3,226,215,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,645,772,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,871,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,871,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,774,304,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,718,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,055,460,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,774,304,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -15,747,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                598,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |