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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||
| Segment information | ||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                8,814,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,951,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,705,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,693,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,060,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,896,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,445,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,085,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,866,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,898,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,184,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                3,322,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                628,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                225,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,538,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                809,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                213,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                514,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,171,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                898,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,171,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                373,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |