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 | 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 and profit (loss) for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                23,168,171,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,161,862,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,330,034,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,330,034,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,011,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,243,483,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,254,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,254,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                36,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                99,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,204,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,360,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -48,564,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,564,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |