Notes - Segment Information, Etc.
| Concept | 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 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||
| Segment information | ||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                1,844,015,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,341,621,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,935,681,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,121,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,121,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,800,881,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,270,387,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,607,403,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,678,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,678,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                380,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                941,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,321,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,321,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                151,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                151,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -151,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |