Notes - Segment Information, Etc.
| Concept | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2023-04-01 to 2023-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 2022-04-01 to 2022-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                1,509,211,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,031,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,909,451,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,484,271,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,768,986,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                658,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,109,105,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,562,455,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,033,059,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,052,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,052,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,019,541,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,961,322,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,961,322,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                577,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,631,881,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,598,185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,476,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,543,556,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,820,302,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,928,117,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,942,703,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,518,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,442,635,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |