Notes - Segment Information, Etc.
| Concept | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 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 | 
                                                21,141,163,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                101,587,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,242,751,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,360,942,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,632,864,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,377,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,242,751,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,770,206,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,368,326,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                101,657,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,716,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,174,025,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,174,025,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,072,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,140,640,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,846,967,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                182,946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                117,400,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,665,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -215,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                215,444,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                414,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,202,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -349,406,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,139,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                349,406,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                321,203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                293,241,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,407,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||||||
| Depreciation | 
                                                786,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                901,593,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                509,297,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                111,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                115,021,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                786,572,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                146,221,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,912,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                107,784,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                757,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                858,011,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                757,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                547,410,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                2,860,998,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,109,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                299,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,177,860,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                246,643,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                248,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,860,998,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                137,396,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,744,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                158,824,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,028,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,028,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,028,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,072,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,800,118,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |