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 | 
                                                449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,378,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,271,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,649,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,099,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                49,582,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                586,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,977,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,605,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                256,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                258,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                234,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                236,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |