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 | 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 and profit (loss) for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                3,304,474,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,861,558,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,228,263,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                328,820,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,532,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,139,019,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                80,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,219,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,091,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,047,200,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,806,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -52,806,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,989,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                813,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,989,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,802,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |