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 | 
                                                2,668,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,778,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,469,326,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,922,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,529,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,529,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,529,656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,464,049,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,533,254,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,443,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,883,932,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,533,254,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,778,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,691,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,533,254,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,509,543,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                140,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                286,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,392,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                474,915,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                474,915,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -474,915,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                462,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                273,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -462,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                462,692,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |