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 | 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 | 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 | 
                                                7,078,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                777,923,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,121,104,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,891,979,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,372,855,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,121,104,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,950,897,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,992,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,893,791,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,950,897,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                765,381,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,299,631,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                964,997,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,234,478,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                269,469,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,234,478,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,162,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                267,020,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,162,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                895,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |