Semi-Annual Consolidated Statement Of Changes In Equity
| Concept | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,992,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,797,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -90,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                17,808,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,168,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -212,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                26,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                5,368,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                49,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,112,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                13,298,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,055,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -212,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,797,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,623,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,996,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,634,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,333,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                23,177,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                5,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                7,441,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                171,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,146,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                7,789,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,789,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,056,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,789,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                23,506,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                177,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,103,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -224,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,854,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,086,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,159,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,992,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,909,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                5,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,198,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,856,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                303,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,856,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,627,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,583,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,780,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,546,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,772,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                828,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -215,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,049,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,731,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,780,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,502,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Issuance of new shares | — | — | — | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Dividends of surplus | — | — | — | 
                                                -611,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -611,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -611,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -611,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -611,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -611,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) attributable to owners of parent | — | — | — | — | — | 
                                                999,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                999,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                999,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                332,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                332,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                332,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | 
                                                138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                133,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -145,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,186,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -145,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,192,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -144,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -128,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,330,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,318,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                793,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -125,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                669,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -171,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                206,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                133,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -183,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -328,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,186,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -199,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -145,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,192,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -144,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -128,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                388,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,537,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -199,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                472,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                490,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                243,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                282,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -47,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,318,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -194,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                1,036,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -125,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                669,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -171,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |