Semi-Annual Consolidated Statement Of Changes In Equity
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 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 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net assets | 
                                                -570,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,303,557,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,995,287,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                33,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,031,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,854,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                26,904,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                9,679,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,124,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,898,281,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -745,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,866,521,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,679,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,358,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,270,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                14,922,912,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                757,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,087,636,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,164,937,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,085,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                29,900,257,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,995,287,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                46,215,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                9,679,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                24,157,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -420,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,174,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,463,155,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,463,155,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,644,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,358,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                549,815,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                17,215,849,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,624,977,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,303,557,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -420,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,270,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                9,679,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,160,635,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,252,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,861,426,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,216,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                26,620,156,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                460,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,828,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,808,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                341,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,136,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,679,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,679,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,466,992,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,270,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,828,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,751,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,619,329,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,596,709,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,306,771,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,303,557,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -420,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -420,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                147,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,359,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,790,856,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,766,184,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Changes during period | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Dividends of surplus | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -2,081,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Profit (loss) attributable to owners of parent | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                4,924,848,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                4,924,848,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,924,848,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                5,531,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                5,531,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                5,531,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Net changes in items other than shareholders' equity | — | — | — | 
                                                2,387,325,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,036,855,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                532,132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                16,639,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                649,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                532,132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                3,053,494,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                532,132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                -100,973,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                634,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,353,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                634,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,401,199,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                634,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,047,725,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                4,300,226,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Total changes during period | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,387,325,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,036,855,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                532,132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -325,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,639,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                208,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,539,959,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,747,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                649,529,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,280,101,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,871,461,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                5,924,955,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,871,786,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,748,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                532,132,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -100,973,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,157,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,501,387,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                208,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,366,144,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,000,827,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,353,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                634,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,401,199,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                634,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,366,144,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,047,725,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,449,665,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,801,613,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                51,722,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |