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 | 
                                                123,728,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,050,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,129,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,026,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,805,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,324,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,129,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                106,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                170,870,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,122,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,386,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                192,992,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                192,992,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,174,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,543,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,562,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,593,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,593,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,507,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,544,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,544,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |