Consolidated Statement Of Comprehensive Income
| Concept | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2023-06-01 to 2024-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 2022-06-01 to 2023-05-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                1,435,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,435,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,435,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,435,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | — | — | 
                                                262,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                57,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Foreign currency translation adjustment | — | — | — | 
                                                -4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Remeasurements of defined benefit plans, net of tax | — | — | — | 
                                                185,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -67,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Other comprehensive income | — | — | — | 
                                                443,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -10,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Comprehensive income | — | — | — | 
                                                3,476,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,041,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | 
                                                3,475,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,041,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
| Comprehensive income attributable to non-controlling interests | — | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — |