Shareholdings
| Concept | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Shareholdings | ||||||||||
| Reporting company | ||||||||||
| Details of specified investment shares held for purposes other than pure investment | ||||||||||
| Number of shares | — | — | — | 
                                                636,168
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
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| Number of shares (Not disclosed as below threshold) | 
                                                *
                                                
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                                                *
                                                
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                                                *
                                                
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| Carrying amount | — | — | — | 
                                                6,088,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
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| Carrying amount (Not disclosed as below threshold) | 
                                                *
                                                
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                                                *
                                                
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                                                *
                                                
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                                                *
                                                
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                                                *
                                                
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                                                *
                                                
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                                                *
                                                
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