Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 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 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||||
| Segment information | ||||||||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||||||||
| Sales | ||||||||||||||||
| Revenues from external customers | 
                                                31,951,348,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,289,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,277,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,189,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,241,643,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,289,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,084,390,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,377,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,566,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                287,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,664,983,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,576,068,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,664,983,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,235,184,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                3,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                340,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,418,798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,759,303,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                333,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,759,303,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                427,432,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                421,289,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,398,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,826,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,826,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,623,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |