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 | 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 | 
                                                17,214,390,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,214,390,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,036,340,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,178,049,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,231,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,596,222,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,634,963,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,231,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,341,190,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                935,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                405,753,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,341,190,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,317,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                387,624,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                929,788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,317,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |