Statement Of Members' Equity
| Concept | 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 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of members' equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of members' equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                4,176,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,218,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -12,107,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -805,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -26,316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                4,156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,962,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -26,680,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -805,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,176,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,077,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,530,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,851,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,950,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -5,926,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                69,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                442,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                15,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                78,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,777,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,107,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,386,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                69,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -847,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -847,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -115,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                129,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,609,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,797,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,707,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                1,707,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -849,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -18,486,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,656,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,694,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,625,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -18,849,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -849,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,165,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,489,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,656,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                755,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,761,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                106,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | 
                                                -26,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -26,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -26,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -26,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -14,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                18,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                18,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                18,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                15,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | 
                                                1,089,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,379,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,264,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,379,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,604,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -89,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,469,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -87,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -514,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                2,469,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                22,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                82,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -871,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,581,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -8,393,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -14,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,415,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                1,089,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -26,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -15,717,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -26,717,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -24,337,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,264,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                41,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,379,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,604,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -89,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -26,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,469,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -87,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -15,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -16,232,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                41,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,469,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,930,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,189,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,187,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                18,928,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                82,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -871,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,581,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,012,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                6,795,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -14,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,415,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |