Statement Of Cash Flows
| Concept | As at 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2021-04-01 to 2022-03-31 | As at 2022-03-31 | 2021-04-01 to 2022-03-31 | As at 2021-03-31 | 
|---|---|---|---|---|---|---|---|
| Statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | — | 
                                                15,770,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,955,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                27,016,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | 
                                                9,113,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,531,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Impairment losses | — | — | 
                                                438,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,814,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in allowance for loan losses | — | — | 
                                                -1,941,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,807,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest income | — | — | 
                                                -171,124,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -158,462,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest expenses | — | — | 
                                                22,210,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,412,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Loss (gain) related to securities | — | — | 
                                                45,446,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,122,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Foreign exchange losses (gains) | — | — | 
                                                -63,146,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -81,124,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net decrease (increase) in loans and bills discounted | — | — | 
                                                -698,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -99,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in deposits | — | — | 
                                                311,549,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                602,083,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest received | — | — | 
                                                172,506,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                159,240,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest paid | — | — | 
                                                -20,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | — | — | 
                                                -3,351,387,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,252,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Income taxes paid | — | — | 
                                                -16,709,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,893,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -7,023,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,498,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | — | — | 
                                                -3,368,097,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,232,138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from operating activities | |||||||
| Cash flows from operating activities | |||||||
| Cash flows from investing activities | |||||||
| Purchase of securities | — | — | 
                                                -785,895,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,136,395,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of securities | — | — | 
                                                1,323,150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                444,060,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of property, plant and equipment | — | — | 
                                                -3,640,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,824,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of property, plant and equipment | — | — | 
                                                426,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                672,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | — | — | 
                                                922,430,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -358,507,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -303,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -162,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from facilities maintenance and investing activities | |||||||
| Cash flows from financing activities | |||||||
| Purchase of treasury shares | — | — | 
                                                -5,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,520,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Dividends paid | — | — | 
                                                -11,881,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | — | — | 
                                                -16,669,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -31,846,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | — | 
                                                16,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -220,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | — | 
                                                -2,462,319,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                841,563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | 
                                                4,802,328,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                7,264,647,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                6,423,084,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |