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, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||||||
| Sales | ||||||||||||||
| Revenues from external customers | 
                                                10,334,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                106,403,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                975,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,346,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                107,378,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,601,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,953,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,711,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,752,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                96,760,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                992,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,944,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,382,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,429,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                498,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,638,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,927,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,409,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,711,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,108,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,783,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,281,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                502,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,461,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||
| Depreciation | 
                                                87,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,682,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                262,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                856,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,945,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                678,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                626,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,871,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,603,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                267,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                852,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |