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 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                7,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,257,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,508,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | — | — | 
                                                -724,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,411,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Foreign currency translation adjustment | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Remeasurements of defined benefit plans, net of tax | — | — | — | 
                                                -1,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,673,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other comprehensive income | — | — | — | 
                                                -1,761,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,086,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income | — | — | — | 
                                                5,496,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,594,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | 
                                                5,494,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                7,592,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Comprehensive income attributable to non-controlling interests | — | — | — | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — |