Semi-Annual Consolidated Statement Of Comprehensive Income
| Concept | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Semi-annual consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                13,505,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,526,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,505,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,505,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,505,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,812,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Valuation difference on available-for-sale securities | — | 
                                                757,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Foreign currency translation adjustment | — | 
                                                2,556,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,419,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Remeasurements of defined benefit plans, net of tax | — | 
                                                74,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | 
                                                3,387,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1,909,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income | — | 
                                                17,913,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                12,721,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                17,913,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                12,721,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |