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 | 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 | 
                                                33,999,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                225,424,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                225,424,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,899,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                146,525,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                143,939,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,050,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                221,986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                221,986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,996,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                715,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,626,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,944,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -31,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,077,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,035,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -27,916,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,916,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,803,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |