Semi-Annual Consolidated Statement Of Changes In Equity
| Concept | As at 2024-09-30 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 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 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                6,887,940,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,758,565,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,748,565,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,379,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -11,379,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,747,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,046,065,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,800,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -8,007,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,504,951,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                6,512,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,007,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,502,958,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,214,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -10,526,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -10,526,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,213,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,511,696,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,224,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | — | — | — | — | — | 
                                                -120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | 
                                                -3,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -3,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -3,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                2,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                2,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                245,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                245,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                242,235,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -3,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                245,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                291,281,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                288,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                288,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                288,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,519,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — |