Statement Of Members' Equity
| Concept | 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 | 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 | 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 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | As at 2022-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of members' equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of members' equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                43,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                447,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                22,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                353,052,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,832,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -21,351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                108,054,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,630,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,630,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,870,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                206,103,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                301,098,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                108,054,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                244,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -21,351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                221,465,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                22,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                515,176,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                507,902,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,783,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -86,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                360,726,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                43,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,492,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,311,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,810,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -98,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                22,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                22,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                90,810,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                221,340,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                11,311,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                471,937,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                350,295,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,547,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                205,977,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                244,172,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -18,094,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -18,094,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                42,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                245,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                482,718,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,832,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                338,940,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                262,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                22,832,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,489,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,325,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,325,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,549,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                205,937,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                364,601,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                232,052,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,489,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                244,131,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                221,299,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                453,602,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,460,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -62,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -26,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                460,130,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                357,233,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | 
                                                30,494,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                30,494,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                30,494,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                30,494,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                52,616,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,908,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,908,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                3,908,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,908,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                40,766,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | 
                                                202,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -42,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -3,680,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                11,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -3,680,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,708,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -3,680,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,677,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -3,506,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                220,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                3,986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                69,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                4,253,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,998,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                202,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                17,243,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                35,965,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -42,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,112,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                10,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                11,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                125,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,257,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,680,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,708,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -3,680,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,243,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,677,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,096,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                125,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,458,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -3,257,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                125,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                220,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,678,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -18,292,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                18,335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                29,948,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -6,678,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                69,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -14,306,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                22,588,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,998,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,986,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,654,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,654,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |