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 | 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 | 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 | 
                                                222,584,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,206,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,584,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,584,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                201,791,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,518,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                201,791,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                81,201,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                201,791,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,072,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||
| Depreciation | 
                                                13,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,811,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                593,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,795,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,935,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,734,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,375,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                498,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,873,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,013,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,375,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,607,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                26,519,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,632,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,519,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,079,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,846,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,598,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,040,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,393,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,864,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                903,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,296,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,752,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,393,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,776,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |