Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||
| Segment information | ||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                1,858,509,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,219,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,078,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,078,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,564,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,592,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,157,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,157,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                66,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -78,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                80,122,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,849,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -83,849,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |