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 | 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, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                9,467,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,549,565,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,467,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                162,668,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                755,031,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,032,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                177,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,198,721,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                656,428,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,032,594,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                2,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,134,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,252,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,316,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,212,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,104,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,316,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |