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, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                3,169,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                815,151,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,633,542,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,695,461,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,953,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,516,609,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,005,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,312,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,633,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                798,064,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                223,468,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,405,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                746,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                519,280,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,246,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                437,447,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                189,108,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                666,399,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |