Shareholdings
| Concept | As at 2025-03-31 | 
|---|---|
| Shareholdings | |
| Reporting company | |
| Investment shares held for purposes other than pure investment | |
| Shares not listed | |
| Number of issues | 
                                                15
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Carrying amount | 
                                                5,008,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shares other than those not listed | |
| Number of issues | 
                                                10
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Carrying amount | 
                                                7,185,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |