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 | 
                                                79,972,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,668,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,817,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,482,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                96,574,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                96,941,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -366,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,517,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,141,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,301,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,793,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,714,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -78,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,833,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,491,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                349,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,900,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                557,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                185,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,457,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,457,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,517,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,933,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,933,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                415,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |