Statement Of Members' Equity
| Concept | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of members' equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of members' equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                -56,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,121,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -923,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -923,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                77,906,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                63,927,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                199,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                85,543,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                28,988,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                657,236,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                13,979,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                209,117,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                485,136,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                277,812,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,333,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                202,784,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,715,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                486,851,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                199,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                561,467,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,647,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                63,371,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -992,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,333,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                199,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                267,739,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                192,733,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                475,043,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,927,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,906,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                199,066,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,166,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                635,527,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                13,979,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                199,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                551,096,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,059,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                85,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                477,929,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                57,931,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,792,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,847,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,932,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                591,484,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                182,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,333,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                199,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                199,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                176,008,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -706,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,979,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                518,620,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                463,111,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,285,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,927,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,906,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                459,264,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                234,319,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | 
                                                19,855,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                19,855,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,275,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                19,855,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,855,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                72,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                47,188,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                47,188,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                47,188,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                47,188,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | 
                                                1,750,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                9,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,338,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                9,822,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                936,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                5,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -285,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,374,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                11,567,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                6,127,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | — | 
                                                1,750,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,092,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                9,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                41,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                8,921,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,709,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,371,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,822,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                936,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,072,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                257,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                5,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -285,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,374,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                44,043,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,724,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -944,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,127,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                32,475,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -961,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,724,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,420,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,779,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                14,818,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -944,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |