Notes - Segment Information, Etc.
| Concept | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2024-01-01 to 2024-06-30 | 2023-01-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | 2023-01-01 to 2023-06-30 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||
| Segment information | ||||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||||
| Sales | ||||||||||||||
| Revenues from external customers | 
                                                5,695,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,393,588,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                698,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,393,588,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,961,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,734,332,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                785,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,989,543,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,843,167,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,843,167,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,057,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,067,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                396,076,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                597,718,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                201,642,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -597,718,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                281,660,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                114,416,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,199,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                155,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -584,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                584,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                505,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                350,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |