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 | 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 | 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 | 
                                                25,235,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                159,510,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,479,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                159,510,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,030,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,870,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,895,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                174,973,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,284,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                174,973,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,068,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,177,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,279,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                141,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -141,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                141,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |