Notes - Segment Information, Etc.
| Concept | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                126,168,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,540,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,887,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                126,168,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,817,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,923,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                118,590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,313,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                118,590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,853,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,062,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,601,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,602,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -45,602,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,637,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -42,637,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,622,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||
| Depreciation | 
                                                5,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,788,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                419,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                264,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                617,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,520,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                532,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,520,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                229,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,399,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                12,184,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,842,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                274,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,184,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                229,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,291,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                686,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,291,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                322,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                647,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,634,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |