Key Financial Data Of Group
| Concept | As at 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 | As at 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 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2024-03-31 | 2022-04-01 to 2023-03-31 | As at 2023-03-31 | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2021-04-01 to 2022-03-31 | 2021-04-01 to 2022-03-31 | As at 2022-03-31 | As at 2022-03-31 | As at 2021-03-31 | 2020-04-01 to 2021-03-31 | 2020-04-01 to 2021-03-31 | As at 2021-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Key financial data of group | ||||||||||||||||||||||||||
| Business results of group | ||||||||||||||||||||||||||
| Operating revenue | — | — | — | — | — | — | — | — | 
                                                41,979,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,062,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                17,493,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                43,862,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                35,459,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Ordinary profit (loss) | — | — | — | — | — | — | — | — | 
                                                5,977,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,572,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                16,991,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                34,482,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                26,584,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net assets | — | — | — | — | 
                                                1,102,203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                1,167,563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,205,401,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,243,055,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,252,676,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Total assets | — | — | — | — | 
                                                2,025,160,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                1,896,300,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,634,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,695,782,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,741,422,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets per share | — | — | — | — | 
                                                913.43
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                968.06
                                                
                                             | — | 
                                                999.66
                                                
                                             | — | — | — | — | — | 
                                                1,031.28
                                                
                                             | — | — | — | 
                                                1,040.34
                                                
                                             | 
| Basic earnings (loss) per share | — | — | — | — | — | — | — | — | 
                                                4.32
                                                
                                             | — | 
                                                5.34
                                                
                                             | — | — | — | 
                                                11.04
                                                
                                             | — | — | — | 
                                                27.21
                                                
                                             | — | — | — | — | 
                                                21.87
                                                
                                             | — | — | 
| Diluted earnings per share | — | — | — | — | — | — | — | — | 
                                                4.31
                                                
                                             | — | 
                                                5.34
                                                
                                             | — | — | — | 
                                                11.02
                                                
                                             | — | — | — | 
                                                27.14
                                                
                                             | — | — | — | — | 
                                                21.80
                                                
                                             | — | — | 
| Equity-to-asset ratio | — | — | — | — | 
                                                0.543
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                0.615
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                0.736
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | — | 
                                                0.731
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                0.717
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Rate of return on equity | — | — | — | — | — | — | — | — | 
                                                0.005
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                0.005
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                0.011
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                0.026
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | 
                                                0.021
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | 
| Price-earnings ratio | — | — | — | — | — | — | — | — | 
                                                658.4
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                631.1
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                202.3
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                91.9
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | 
                                                100.1
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | 
| Number of employees | 
                                                34,173
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                1,198
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                72,593
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                1,198
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                6,450
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                6,472
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                4,129
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                21,369
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | 
                                                72,254
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                821
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                811
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                73,878
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                75,474
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                815
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                73,275
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | 
                                                633
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Average number of temporary employees | 
                                                5,077
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                96
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                9,309
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                96
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                936
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                607
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                584
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                2,105
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | 
                                                9,436
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                75
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                69
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                9,635
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                9,564
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                56
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                9,731
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | 
                                                25
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
| Revenues | — | — | — | 
                                                3,195,828,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                2,960,916,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                2,859,041,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,525,773,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,192,519,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) before tax | — | — | — | 
                                                340,594,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                317,288,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                282,224,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                260,446,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                235,870,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net income (loss) attributable to owners of parent | — | — | — | 
                                                260,951,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                243,509,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                219,422,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                211,180,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                181,205,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income, attributable to owners of parent | — | — | — | 
                                                250,379,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                523,308,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                307,249,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                340,009,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                292,469,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Equity attributable to owners of parent | — | — | 
                                                3,348,480,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                3,169,247,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,763,145,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,502,657,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,204,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Equity including portion attributable to non-controlling interest | — | — | 
                                                3,352,682,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                3,173,315,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,787,860,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                2,524,940,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,222,157,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Total assets | — | — | 
                                                5,249,908,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                4,783,460,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                4,134,311,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,955,280,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,549,203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Equity attributable to owners of parent per share | — | — | 
                                                2,779.50
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                2,632.12
                                                
                                             | — | — | — | 
                                                2,296.32
                                                
                                             | — | — | — | 
                                                2,081.43
                                                
                                             | — | 
                                                1,838.05
                                                
                                             | — | — | — | 
| Basic earnings (loss) per share | — | — | — | 
                                                216.67
                                                
                                             | — | — | — | — | — | — | — | 
                                                202.29
                                                
                                             | — | — | — | — | — | 
                                                182.40
                                                
                                             | — | 
                                                175.78
                                                
                                             | — | — | — | — | 
                                                151.09
                                                
                                             | — | 
| Diluted earnings (loss) per share | — | — | — | 
                                                216.46
                                                
                                             | — | — | — | — | — | — | — | 
                                                202.05
                                                
                                             | — | — | — | — | — | 
                                                182.14
                                                
                                             | — | 
                                                175.37
                                                
                                             | — | — | — | — | 
                                                150.58
                                                
                                             | — | 
| Equity-to-asset ratio | — | — | 
                                                0.638
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                0.663
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                0.668
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
                                                0.633
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                0.621
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | 
| Price-earnings ratio | — | — | — | 
                                                13.1
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                16.7
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | — | 
                                                12.2
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                14.2
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | 
                                                14.5
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Rate of return on equity | — | — | — | 
                                                0.080
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                0.082
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | — | 
                                                0.083
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
                                                0.090
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | — | — | — | 
                                                0.087
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | — | 
| Cash flows from (used in) operating activities | — | — | — | 
                                                428,162,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                407,941,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                210,452,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                323,934,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                420,861,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from (used in) investing activities | — | — | — | 
                                                -541,953,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -527,416,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -323,225,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -153,542,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -279,381,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from (used in) financing activities | — | — | — | 
                                                108,883,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                -462,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -123,695,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -105,184,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -163,093,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | — | — | 
                                                172,111,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                179,715,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                268,608,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                486,328,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                394,795,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — |