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, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||||||||
| Sales | ||||||||||||||||
| Revenues from external customers | 
                                                10,119,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,223,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                89,771,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                58,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,084,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,858,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,958,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,267,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,060,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,060,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,976,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,083,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                747,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                769,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -769,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                731,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                748,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -748,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                733,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |