Notes - Segment Information, Etc.
| Concept | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||
| Segment information | ||||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||||
| Sales | ||||||||||||||
| Revenues from external customers | 
                                                41,359,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,871,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,615,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                511,640,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,871,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,744,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,981,657,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,302,830,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,875,442,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                427,387,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,893,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,302,830,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                152,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -152,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                152,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -116,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                116,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                116,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |