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 | 
                                                22,041,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                80,143,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,459,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,800,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                80,236,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,842,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,141,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,955,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                80,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,931,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,222,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,135,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||
| Depreciation | 
                                                1,065,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,429,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                622,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,728,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,012,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                997,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,475,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,480,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,159,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                901,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,332,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,547,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,259,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,332,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                624,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,718,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,352,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,722,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,023,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |