Notes - Segment Information, Etc.
| Concept | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2025-02-28 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | As at 2024-02-29 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||
| Amortization and unamortized balance of goodwill for each reportable segment | ||||||||||||||
| Amortization and unamortized balance of goodwill for each reportable segment | ||||||||||||||
| Goodwill | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                195,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                188,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,909,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,104,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,131,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                217,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                914,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |