Notes - Segment Information, Etc.
| Concept | 2023-06-01 to 2023-08-31 | 2023-06-01 to 2023-08-31 | 2023-06-01 to 2023-08-31 | 2023-06-01 to 2023-08-31 | 2023-06-01 to 2023-08-31 | 2022-06-01 to 2022-08-31 | 2022-06-01 to 2022-08-31 | 2022-06-01 to 2022-08-31 | 2022-06-01 to 2022-08-31 | 2022-06-01 to 2022-08-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                5,506,948,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,506,948,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,132,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                374,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,652,940,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,652,940,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,652,940,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |