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 | 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 | 
                                                14,093,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,556,058,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                399,472,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,463,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,674,209,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,093,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,023,029,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,450,222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                390,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,250,811,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,114,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,114,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                669,858,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                135,718,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                534,127,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -669,858,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                134,162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                482,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -616,284,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                616,284,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |