Semi-Annual Consolidated Statement Of Cash Flows
| Concept | 2023-07-01 to 2024-06-30 | As at 2024-06-30 | As at 2023-06-30 | 2022-07-01 to 2023-06-30 | As at 2022-06-30 | 
|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | 
                                                2,989,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,609,479,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | 
                                                15,641,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                20,525,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | 
                                                -131,178,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -130,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | 
                                                2,485,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,720,531,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | 
                                                -836,806,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,674,612,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from sale of property, plant and equipment | 
                                                18,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                156,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | 
                                                -15,888,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -18,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | 
                                                -693,447,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,555,326,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | |||||
| Proceeds from issuance of bonds | 
                                                394,874,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from long-term borrowings | 
                                                360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,990,422,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Redemption of bonds | 
                                                -40,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Repayments of long-term borrowings | 
                                                -975,679,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -968,364,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of treasury shares | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -97,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid | 
                                                -295,894,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -243,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | 
                                                -1,376,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -236,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | 
                                                369,574,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                96,950,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                785,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                25,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | — | 
                                                5,571,574,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,786,128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,760,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |