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 | 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 | 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 | 
                                                10,254,053,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,073,037,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,172,055,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,646,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,073,037,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,070,067,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,196,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,144,302,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,728,865,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,070,067,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,055,101,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,056,410,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,260,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,056,410,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                988,375,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                986,044,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -988,375,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,331,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |