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 | 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 | 
                                                2,846,930,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,929,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,862,934,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,865,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,221,250,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,495,623,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,607,724,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,285,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,103,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,078,627,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,172,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                914,281,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,823,943,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,131,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,709,431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                808,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,337,805,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,625,284,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,478,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,465,294,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |