Notes - Segment Information, Etc.
| Concept | 2024-03-01 to 2024-08-31 | 2024-03-01 to 2024-08-31 | 2024-03-01 to 2024-08-31 | 2024-03-01 to 2024-08-31 | 2024-03-01 to 2024-08-31 | 2024-03-01 to 2024-08-31 | 2024-03-01 to 2024-08-31 | 2024-03-01 to 2024-08-31 | 2023-03-01 to 2023-08-31 | 2023-03-01 to 2023-08-31 | 2023-03-01 to 2023-08-31 | 2023-03-01 to 2023-08-31 | 2023-03-01 to 2023-08-31 | 2023-03-01 to 2023-08-31 | 2023-03-01 to 2023-08-31 | 2023-03-01 to 2023-08-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||||
| Segment information | ||||||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||||||
| Sales | ||||||||||||||||
| Revenues from external customers | 
                                                653,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                163,681,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                163,027,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                163,681,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                113,853,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,974,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,198,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                599,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                139,642,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                139,042,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                139,642,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,872,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,463,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,707,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                119,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,872,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,155,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,573,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,872,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,792,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,649,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,792,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,086,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,549,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |