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 | 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 | 
                                                50,624,704,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,828,393,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,624,704,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,796,310,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,623,725,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,623,725,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,927,307,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,696,417,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                685,728,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,815,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                677,913,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -685,728,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                792,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -792,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                792,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |