Notes - Segment Information, Etc.
| Concept | 2023-07-01 to 2024-06-30 | 2023-07-01 to 2024-06-30 | 2023-07-01 to 2024-06-30 | 2023-07-01 to 2024-06-30 | 2023-07-01 to 2024-06-30 | 2023-07-01 to 2024-06-30 | 2022-04-01 to 2023-06-30 | 2022-04-01 to 2023-06-30 | 2022-04-01 to 2023-06-30 | 2022-04-01 to 2023-06-30 | 2022-04-01 to 2023-06-30 | 2022-04-01 to 2023-06-30 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                1,233,909,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,709,151,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,329,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,146,157,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,709,151,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,615,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,867,407,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,066,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,867,407,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,185,015,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                677,802,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,050,165,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,727,968,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,727,968,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,636,376,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,155,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                519,056,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,155,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||
| Depreciation | 
                                                49,151,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                965,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                801,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,839,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                903,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,305,842,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,195,064,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,361,555,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                20,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,603,389,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,109,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                125,609,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                347,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,255,396,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                315,926,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,524,238,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,125,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,535,824,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,391,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,585,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |