Notes - Segment Information, Etc.
| Concept | 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 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||
| Segment information | ||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                195,969,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,585,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                198,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                198,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                177,829,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,395,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                175,434,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                177,829,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                46,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -455,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                408,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                455,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                407,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                180,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |