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 | 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 | 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 | 
                                                2,904,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,470,489,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                508,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,818,720,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                897,339,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,818,720,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                456,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                978,686,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,299,833,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,416,472,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,193,162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,193,162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                166,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                177,796,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,514,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -177,796,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                915,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                206,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -207,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                207,910,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |