Notes - Segment Information, Etc.
| Concept | 2019-04-01 to 2020-03-31 | 2019-04-01 to 2020-03-31 | 2019-04-01 to 2020-03-31 | 2019-04-01 to 2020-03-31 | 2019-04-01 to 2020-03-31 | 2018-04-01 to 2019-03-31 | 2018-04-01 to 2019-03-31 | 2018-04-01 to 2019-03-31 | 2018-04-01 to 2019-03-31 | 2018-04-01 to 2019-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||
| Segment information | ||||||||||
| Disclosure of sales and profit (loss) for each reportable segment | ||||||||||
| Sales | ||||||||||
| Revenues from external customers | 
                                                20,070,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,698,179,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,430,451,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,870,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,671,296,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,122,765,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,020,042,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,440,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,376,196,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,080,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,483,395,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,135,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                518,440,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,778,336,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                765,365,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,776,810,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,157,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                513,024,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                854,082,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,401,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |