Notes - Segment Information, Etc.
| Concept | 2023-07-01 to 2024-03-31 | 2023-07-01 to 2024-03-31 | 2023-07-01 to 2024-03-31 | 2023-07-01 to 2024-03-31 | 2023-07-01 to 2024-03-31 | 2023-07-01 to 2024-03-31 | 2022-07-01 to 2023-03-31 | 2022-07-01 to 2023-03-31 | 2022-07-01 to 2023-03-31 | 2022-07-01 to 2023-03-31 | 2022-07-01 to 2023-03-31 | 2022-07-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                5,897,794,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,897,794,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,544,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,100,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,327,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,543,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,543,506,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,133,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,032,619,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,479,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,059,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -109,059,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,059,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |