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 | 
                                                173,913,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,170,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                182,058,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,488,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,349,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -343,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                182,401,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                148,394,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,154,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,131,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                120,376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                144,662,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,629,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,966,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -870,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                148,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,061,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,500,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                379,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,562,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,562,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                633,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                346,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,262,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,661,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,311,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,649,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -13,311,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |