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 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of members' equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of members' equity | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                413,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                155,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                18,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,288,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                52,441,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,735,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -63,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,808,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -10,668,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                18,167,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                57,665,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,808,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,696,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -63,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                18,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,824,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,769,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,099,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                52,441,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                866,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -3,402,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,800,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                18,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                18,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,800,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,954,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,914,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                52,385,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,458,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,161,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,690,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -105,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -105,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                412,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,621,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,735,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,385,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,858,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                850,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -206,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,735,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,046,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                914,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,317,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,550,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,130,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,942,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,046,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,108,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,372,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,468,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                421,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,233,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                314,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,130,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | 
                                                1,364,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,364,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,364,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                1,364,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,223,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                2,169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                3,281,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | 
                                                45,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -4,697,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -6,210,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -4,652,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                16,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                619,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -205,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -64,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -15,057,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -14,775,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -14,851,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                45,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -145,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,697,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,210,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,797,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                41,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                619,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -205,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -64,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,744,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -3,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -5,389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -4,744,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -18,611,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -14,775,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,417,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -14,851,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -80,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -80,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,417,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |