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 | 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 | 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 | 
                                                237,724,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,775,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                238,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                585,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                150,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                238,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,033,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                221,693,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                559,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,252,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                133,556,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,998,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,252,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                4,899,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,818,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,918,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,775,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,111,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -13,818,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,823,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,124,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,947,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,813,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                996,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,947,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||||
| Depreciation | 
                                                7,399,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,393,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,494,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,614,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,965,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,391,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                470,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,614,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                106,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                393,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,939,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,567,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,257,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,546,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                17,922,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,722,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,021,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                99,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,374,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,381,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,825,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,086,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                61,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,639,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,695,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,790,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,118,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,056,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |