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 | 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 | 
                                                19,787,230,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                984,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,787,230,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,519,470,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                283,742,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,195,426,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,230,665,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                860,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                104,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,195,426,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                461,817,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                453,237,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -461,817,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -423,709,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                423,709,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                414,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,700,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |