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 | 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 | 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 | 
                                                173,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,115,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                493,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                787,291,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,816,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,844,903,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,664,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                670,879,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                178,213,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                394,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                99,469,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,983,624,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,990,549,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,916,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,974,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,240,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,363,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,619,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,204,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,104,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |