Semi-Annual Consolidated Statement Of Comprehensive Income
| Concept | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of comprehensive income | ||||||||
| Statement of comprehensive income | ||||||||
| Profit (loss) | 
                                                -777,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -180,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -777,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -777,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -349,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -349,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -349,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                339,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||
| Valuation difference on available-for-sale securities | — | 
                                                119,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -211,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | — | 
                                                -75,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans, net of tax | — | 
                                                263,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -62,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | — | 
                                                307,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                -123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income | — | 
                                                126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                216,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to | ||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                216,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to non-controlling interests | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |