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 | 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 | 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 | 
                                                174,412,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                601,322,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                531,867,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                179,225,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,588,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                114,650,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                808,997,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                178,225,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,588,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,387,240,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                699,296,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                490,553,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                116,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                186,593,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,387,240,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                567,042,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                173,142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                154,560,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                6,012,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,934,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                524,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,497,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                89,984,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                339,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                112,444,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -112,444,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                128,888,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,002,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                349,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -128,888,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                106,631,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,289,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                230,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,625,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |