Year To Quarter End Consolidated Statement Of Comprehensive Income
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 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 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Year to quarter end consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                -326,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -326,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -326,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                132,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -326,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -347,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -452,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -347,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -347,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -347,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | — | — | 
                                                -94,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                167,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Deferred gains or losses on hedges | — | — | — | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Remeasurements of defined benefit plans, net of tax | — | — | — | 
                                                -20,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other comprehensive income | — | — | — | 
                                                -114,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                158,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income | — | — | — | 
                                                18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -293,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | 
                                                18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -294,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income attributable to non-controlling interests | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — |