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 | 
                                                72,196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,844,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,352,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                67,363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                67,363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,192,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                998,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                194,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,192,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                987,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,082,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,082,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |