Notes - Segment Information, Etc.
| Concept | 2023-03-21 to 2024-03-20 | 2023-03-21 to 2024-03-20 | 2023-03-21 to 2024-03-20 | 2023-03-21 to 2024-03-20 | 2023-03-21 to 2024-03-20 | 2023-03-21 to 2024-03-20 | 2022-03-21 to 2023-03-20 | 2022-03-21 to 2023-03-20 | 2022-03-21 to 2023-03-20 | 2022-03-21 to 2023-03-20 | 2022-03-21 to 2023-03-20 | 2022-03-21 to 2023-03-20 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||
| Segment information | ||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,822,418,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,623,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,623,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                649,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,151,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,612,347,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,107,283,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,107,283,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                632,828,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                862,107,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                -634,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                489,816,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                634,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,290,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                116,976,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                420,836,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                533,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,518,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -533,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |