Notes - Segment Information, Etc.
| Concept | 2024-01-01 to 2024-03-31 | 2024-01-01 to 2024-03-31 | 2024-01-01 to 2024-03-31 | 2024-01-01 to 2024-03-31 | 2024-01-01 to 2024-03-31 | 2024-01-01 to 2024-03-31 | 2024-01-01 to 2024-03-31 | 2023-01-01 to 2023-03-31 | 2023-01-01 to 2023-03-31 | 2023-01-01 to 2023-03-31 | 2023-01-01 to 2023-03-31 | 2023-01-01 to 2023-03-31 | 2023-01-01 to 2023-03-31 | 2023-01-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,392,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,749,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,240,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,066,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,050,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,749,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,613,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,318,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,341,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,417,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,535,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,613,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                -1,525,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                116,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,065,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,525,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                555,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                259,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,073,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,890,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,890,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |