Notes - Segment Information, Etc.
| Concept | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 2022-04-01 to 2022-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||
| Segment information | ||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                7,689,642,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,467,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,157,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,157,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,237,026,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,088,176,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,325,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,325,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                40,796,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                216,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                256,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -256,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -217,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                162,645,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                217,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |