Shareholdings
| Concept | As at 2025-03-31 | As at 2024-03-31 | 
|---|---|---|
| Shareholdings | ||
| Reporting company | ||
| Details of deemed holdings of shares held for purposes other than pure investment | ||
| Issue | 
                                                トヨタ自動車株式会社
                                                
                                             | — | 
| Number of shares | 
                                                405,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                450,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Carrying amount | 
                                                1,076,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,718,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Purpose of shareholding, overview of business alliance, quantitative effects of shareholding and reason for increase in number of shares | 
                                                退職給付信託株式であり、当該株式に係る議決権行使の指図権を有しているものであります。
                                                
                                             | — | 
| Whether issuer of aforementioned shares holds reporting company's shares | 
                                                無
                                                
                                             | — |