Statement Of Members' Equity
| Concept | 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 | 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 | 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 | 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 | As at 2024-12-31 | As at 2024-12-31 | As at 2024-12-31 | 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 | As at 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 | 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 | 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 | 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 | 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 | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,904,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                493,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                830,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -9,613,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                31,499,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                31,499,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                137,442,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                193,761,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,921,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                8,904,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                202,716,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,280,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                830,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                113,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                197,743,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,499,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,499,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,800,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                140,609,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                548,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                34,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                206,091,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                18,280,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,938,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,938,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                830,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                140,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -9,133,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                112,925,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,415,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                602,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,499,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,499,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                197,354,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,280,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                13,260,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                13,260,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                13,260,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                13,260,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                7,528,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                7,528,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                7,528,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,528,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                606,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                606,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                606,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
                                                -73,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                1,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                606,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,981,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -813,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,375,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                606,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,167,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,112,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -73,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                109,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                333,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                55,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,675,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -54,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |