Statement Of Changes In Equity
| Concept | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 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 | As at 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 | 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 | 2023-04-01 to 2024-03-31 | As at 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 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 | 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 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                1,085,378,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,110,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,034,579,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                900,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                124,488,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                40,363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,666,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -56,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,102,203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,746,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,157,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                63,636,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,146,053,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,636,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                64,187,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                900,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -56,151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,097,653,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,553,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,957,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                40,363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,167,563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                187,563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -186,002,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,323,305,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,205,401,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,636,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,521,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,636,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -57,229,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,194,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,716,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,147,392,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | — | — | — | — | — | — | — | — | 
                                                -68,272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -68,272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -68,272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -68,272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -56,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -56,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -56,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -56,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | 
                                                5,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                5,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                6,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                6,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disposal of treasury shares | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                4,616,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                2,559,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                4,616,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,056,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,559,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,659,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,659,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,108,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | — | — | — | — | 
                                                -290,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -4,395,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,685,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                10,836,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                10,272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -564,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -290,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -63,074,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -63,074,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -60,674,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,559,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,395,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -65,360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -159,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,559,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                10,836,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -49,738,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -48,109,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -423,305,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -37,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,077,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -564,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                373,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — |