Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 2024-04-01 to 2024-09-30 | 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 | 2023-04-01 to 2023-09-30 | 2023-04-01 to 2023-09-30 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||
| Segment information | ||||||||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||||
| Sales | ||||||||||||
| Revenues from external customers | 
                                                9,024,447,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                199,779,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,570,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,570,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                346,557,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                171,526,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                441,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,106,109,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,106,109,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,492,924,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                52,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,153,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                295,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -295,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                237,584,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                206,007,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                266,559,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -266,559,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,290,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |