Notes - Goodwill And Intangible Assets
| Concept | As at 2025-03-31 | As at 2024-03-31 | 
|---|---|---|
| Notes - Goodwill and intangible assets | ||
| Components of goodwill and intangible assets | ||
| Acquisition cost | ||
| Goodwill | 
                                                249,775,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                286,070,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                305,062,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                309,815,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                135,243,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                143,424,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill and intangible assets | 
                                                1,137,665,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,202,417,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated amortization and impairment | ||
| Goodwill | 
                                                -175,574,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -29,385,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                -224,964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -212,725,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                -101,124,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -104,370,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill and intangible assets | 
                                                -631,213,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -454,406,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Carrying amount | ||
| Goodwill | 
                                                74,201,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                256,685,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                80,098,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                34,119,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,054,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill and intangible assets | 
                                                506,452,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                748,011,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |