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 | 
                                                105,540,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,716,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                269,923,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                269,923,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                147,666,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,736,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                111,175,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                217,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                217,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,667,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                3,397,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                963,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,072,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,711,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,072,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,561,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,410,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,410,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                722,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |