Notes - Goodwill And Intangible Assets
| Concept | As at 2024-12-31 | As at 2023-12-31 | 
|---|---|---|
| Notes - Goodwill and intangible assets | ||
| Components of goodwill and intangible assets | ||
| Acquisition cost | ||
| Goodwill | 
                                                22,293,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,743,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                57,668,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,693,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                19,189,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,306,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated amortization and impairment | ||
| Goodwill | 
                                                -12,147,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,270,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                -40,586,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -35,635,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                -8,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,892,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Carrying amount | ||
| Goodwill | 
                                                10,146,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,472,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                17,082,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,057,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                10,757,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,413,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill and intangible assets | 
                                                53,796,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,381,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |