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 | 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 | 
                                                4,133,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,378,370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,172,897,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,306,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,684,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,977,116,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,546,932,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,899,877,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,077,238,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,524,048,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                674,724,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                396,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                218,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                892,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,289,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                945,449,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                145,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                330,676,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                614,773,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,091,002,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |