Semi-Annual Consolidated Statement Of Cash Flows
| Concept | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | As at 2023-03-31 | 
|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | — | 
                                                -144,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                308,027,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -15,843,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,654,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -160,043,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                296,372,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -14,671,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,269,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                26,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                134,864,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -481,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Purchase of treasury shares | — | 
                                                -13,596,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,226,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -12,085,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,868,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -23,976,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,089,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                -2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -49,157,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -196,136,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                1,119,510,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,168,668,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,364,804,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |