Year To Quarter End Consolidated Statement Of Comprehensive Income
| Concept | 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 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Year to quarter end consolidated statement of comprehensive income | ||||||||||
| Statement of comprehensive income | ||||||||||
| Profit (loss) | 
                                                4,258,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,258,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,258,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,258,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,937,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||
| Remeasurements of defined benefit plans, net of tax | — | — | 
                                                -29,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                57,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | — | 
                                                -29,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                57,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income | — | — | 
                                                25,134,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                19,995,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||
| Comprehensive income attributable to owners of parent | — | — | 
                                                25,134,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                19,995,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |