Notes - Goodwill And Intangible Assets
| Concept | As at 2024-03-31 | As at 2023-03-31 | 
|---|---|---|
| Notes - Goodwill and intangible assets | ||
| Components of goodwill and intangible assets | ||
| Acquisition cost | ||
| Goodwill | 
                                                53,699,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,537,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                1,484,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                661,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                306,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill and intangible assets | 
                                                68,950,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,118,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated amortization and impairment | ||
| Goodwill | 
                                                -919,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -845,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                -1,419,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,303,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                -113,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -66,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill and intangible assets | 
                                                -2,712,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,406,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Carrying amount | ||
| Goodwill | 
                                                52,780,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,692,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                65,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                549,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                239,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill and intangible assets | 
                                                66,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,712,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |