Statement Of Changes In Equity
| Concept | 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 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 | 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 | 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 | 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 | 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 | 2023-04-01 to 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 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 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 | 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 | 2022-04-01 to 2023-03-31 | As at 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 | 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 | 2022-04-01 to 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 | 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 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 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 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 | 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 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | — | 
                                                80,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                348,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                29,674,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -635,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,685,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,084,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,084,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,084,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                28,418,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,039,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -635,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,407,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,896,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,463,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                30,758,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                4,165,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                645,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,878,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,506,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                12,232,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                645,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,990,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                31,512,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                645,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -634,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -634,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,224,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,867,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -634,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,045,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                430,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                430,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                430,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,465,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,950,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -634,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,939,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,332,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,635,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                267,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,328,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,035,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -1,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) | — | — | 
                                                -97,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -97,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -97,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -97,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                3,153,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | 
                                                11,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,957,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,731,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,743,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -253,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                871,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                844,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                832,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | 
                                                11,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                416,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,957,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,731,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                416,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,159,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,832,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,832,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,832,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -253,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                871,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,047,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                2,896,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                832,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |