Quarterly Statement Of Cash Flows
| Concept | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|---|
| Quarterly statement of cash flows | |||||||
| Statement of cash flows | |||||||
| Cash flows from operating activities | |||||||
| Profit (loss) before income taxes | 
                                                31,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                81,790,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                61,860,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                32,839,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | 
                                                9,355,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Impairment losses | — | — | 
                                                873,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                906,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Foreign exchange losses (gains) | — | — | 
                                                12,156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -91,169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                1,078,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,793,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | — | — | 
                                                -955,440,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -20,498,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Income taxes paid | — | — | 
                                                -25,964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,691,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | — | — | 
                                                -981,405,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,189,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of property, plant and equipment | — | — | 
                                                -4,370,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,766,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of property, plant and equipment | — | — | 
                                                318,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -248,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | — | — | 
                                                -195,558,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -323,694,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from financing activities | |||||||
| Purchase of treasury shares | — | — | 
                                                -20,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -20,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Dividends paid | — | — | 
                                                -13,094,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,085,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | — | — | 
                                                -32,974,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -31,950,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | — | 
                                                -1,209,938,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -380,835,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | — | 
                                                3,211,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,421,493,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,802,328,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |