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 | 
                                                4,435,492,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,107,391,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,527,679,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,693,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,635,071,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,911,783,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,066,628,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,021,030,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                977,137,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,009,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,994,065,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,807,706,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                813,641,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,986,736,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |