Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||
| Segment information | ||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                14,373,285,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,104,665,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,104,665,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,731,379,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,628,035,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,313,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,628,035,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,314,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                109,427,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                166,354,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,926,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -166,354,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,457,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                102,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -117,457,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,085,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |