Notes - Segment Information, Etc.
| Concept | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||
| Segment information | ||||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||||
| Sales | ||||||||||||||
| Revenues from external customers | 
                                                4,455,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,455,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                562,884,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,250,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,641,467,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,455,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,624,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,601,224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,495,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                528,184,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,624,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,624,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |