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, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                29,822,124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,336,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,302,401,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,685,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,458,215,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,287,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,210,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,195,978,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,695,637,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,001,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                125,267,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                251,791,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,257,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,785,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                106,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,216,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,108,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                212,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                73,932,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||
| Depreciation | 
                                                167,540,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                103,049,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                345,356,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,760,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,006,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                126,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,258,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                259,625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,088,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |