Quarterly Statement Of Cash Flows
| Concept | As at 2024-08-31 | 2024-03-01 to 2024-08-31 | As at 2024-02-29 | 2023-03-01 to 2023-08-31 | As at 2023-08-31 | As at 2023-02-28 | 
|---|---|---|---|---|---|---|
| Quarterly statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Subtotal | — | 
                                                2,859,412,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,276,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                13,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -3,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -6,619,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -1,055,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -532,752,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                1,813,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,753,392,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | ||||||
| Purchase of securities | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -7,996,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of property, plant and equipment | — | 
                                                -941,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -802,587,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -20,342,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -30,020,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -1,493,739,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,227,780,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | ||||||
| Repayments of long-term borrowings | — | 
                                                -64,264,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -34,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -1,275,522,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,275,821,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -15,869,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -118,472,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -1,497,948,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -1,661,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                230,772,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                178,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -947,093,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -957,458,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                14,760,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                15,707,366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                16,720,665,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,678,123,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |