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 | — | 
                                                -244,960,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                299,863,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -10,828,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,444,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                -255,788,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                294,419,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -2,084,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,545,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                1,030,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                336,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of shares of subsidiaries resulting in change in scope of consolidation | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -127,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                186,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -90,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Purchase of treasury shares | — | 
                                                -1,517,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,728,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -8,358,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,892,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -9,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -10,509,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of shares of subsidiaries not resulting in change in scope of consolidation | — | 
                                                -7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -78,666,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                193,739,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                2,145,045,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,223,711,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,029,972,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |