Notes - Segment Information, Etc.
| Concept | 2023-11-01 to 2024-10-31 | 2023-11-01 to 2024-10-31 | 2023-11-01 to 2024-10-31 | 2023-11-01 to 2024-10-31 | 2023-11-01 to 2024-10-31 | 2023-11-01 to 2024-10-31 | 2022-11-01 to 2023-10-31 | 2022-11-01 to 2023-10-31 | 2022-11-01 to 2023-10-31 | 2022-11-01 to 2023-10-31 | 2022-11-01 to 2023-10-31 | 2022-11-01 to 2023-10-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                173,957,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                234,950,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,866,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                234,950,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,567,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                211,405,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                211,405,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                163,861,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,975,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                246,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -246,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                246,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||
| Depreciation | 
                                                4,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,532,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,476,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,345,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,532,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,815,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,620,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                3,485,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,154,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,386,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,282,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,154,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,424,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,185,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,185,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,404,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,356,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |