Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||
| Segment information | ||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||
| Sales | ||||||||
| Revenues from external customers | 
                                                1,366,522,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,764,208,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,312,879,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,443,610,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,475,433,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,986,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,493,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,017,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |