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 | 
                                                3,784,945,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,533,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,318,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,318,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,129,976,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,178,953,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,951,023,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,129,976,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                38,811,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                70,888,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -109,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,930,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,610,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -83,930,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                320,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |