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 | 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 | 
                                                7,891,236,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,080,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,646,120,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,299,879,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,153,002,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                243,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,091,906,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                235,654,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,909,964,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,914,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,858,536,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,621,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                204,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                84,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                84,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                84,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |