Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||
| Segment information | ||||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||||
| Sales | ||||||||||||||
| Revenues from external customers | 
                                                231,888,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,504,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                229,486,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,402,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                210,981,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                231,888,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,415,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,613,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                192,758,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                192,758,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                173,802,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                350,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                869,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,533,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                518,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,402,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,402,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                775,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                349,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,642,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,417,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,417,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                426,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |