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 | 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 | 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 | 
                                                292,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,599,006,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,891,020,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,377,885,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,410,472,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,217,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,891,020,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,728,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,807,712,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,180,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,807,712,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,545,612,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,496,279,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,389,281,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                294,358,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,513,354,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,396,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -35,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,362,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |