Notes - Segment Information, Etc.
| Concept | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2023-06-01 to 2024-02-29 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 2022-06-01 to 2023-02-28 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                1,810,749,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,119,335,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,159,431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,278,767,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,278,767,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,570,393,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,778,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,811,831,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,739,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,739,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,927,562,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,774,328,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,756,720,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,396,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -68,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -60,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |