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 | 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 | 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 | 
                                                20,729,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,030,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,112,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,030,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,484,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,318,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,687,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,222,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,211,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,818,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,338,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -66,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -72,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |