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 | 
                                                8,735,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                75,299,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                860,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,330,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,435,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,022,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                809,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,348,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                75,579,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,399,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                2,660,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                207,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,418,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,550,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,893,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                173,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,179,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,112,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||
| Depreciation | 
                                                610,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,129,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,796,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,905,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,404,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                454,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                884,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,086,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,012,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,187,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                712,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |