Semi-Annual Consolidated Statement Of Cash Flows
| Concept | 2021-08-01 to 2022-07-31 | As at 2022-07-31 | 2020-08-01 to 2021-07-31 | As at 2021-07-31 | As at 2020-07-31 | 
|---|---|---|---|---|---|
| Semi-annual consolidated statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | 
                                                736,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | 
                                                -1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | 
                                                -378,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -229,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | 
                                                380,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | 
                                                -125,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -36,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -29,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | 
                                                -138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                162,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | 
                                                -296,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                121,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Repayments of long-term borrowings | 
                                                -195,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -179,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | 
                                                -242,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -169,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | 
                                                -438,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -349,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | 
                                                21,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -15,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | 
                                                -332,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                720,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | — | 
                                                2,313,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,646,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,925,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |