Notes - Segment Information, Etc.
| Concept | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 
|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||
| Segment information | ||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | ||||||
| Sales | ||||||
| Revenues from external customers | 
                                                21,113,728,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,628,431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                485,297,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,294,790,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,807,066,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                487,723,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                378,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                378,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |