Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                193,398,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,697,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                182,701,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                193,398,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                184,661,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                184,661,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                173,859,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,801,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                585,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                576,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -585,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                567,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -567,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                558,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||
| Depreciation | 
                                                10,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,704,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,542,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                541,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,463,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                527,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,991,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,221,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,242,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                13,595,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,354,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,805,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                210,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,737,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,665,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,922,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |