Notes - Segment Information, Etc.
| Concept | 
                                    
                                        As at 2023-03-31  | 
                            
                                
                                    
                                        As at 2023-03-31  | 
                            
                                
                                    
                                        As at 2023-03-31  | 
                            
                                
                                    
                                        As at 2023-03-31  | 
                            
                                
                                    
                                        As at 2023-03-31  | 
                            
                                
                                    
                                        As at 2023-03-31  | 
                            
                        
|---|---|---|---|---|---|---|
| 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
                                                    
                                                
                                             
                                        
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                                                        JPY
                                                    
                                                
                                             
                                        
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                                                        JPY
                                                    
                                                
                                             
                                        
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                                                        JPY
                                                    
                                                
                                             
                                        
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                                                        JPY
                                                    
                                                
                                             
                                        
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                                                        JPY
                                                    
                                                
                                             
                                        
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