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 | 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 | 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 | 
                                                1,506,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,767,741,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,839,709,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,114,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,114,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,118,496,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,827,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,769,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,715,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,715,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                194,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                131,808,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                488,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -814,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                814,251,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -743,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                167,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                130,522,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                446,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                743,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |