Notes - Segment Information, Etc.
| Concept | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                24,310,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                482,834,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                185,078,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                599,433,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,310,486,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,718,462,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,324,678,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,698,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,092,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,698,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,196,715,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                186,917,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                609,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                613,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,192,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                59,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,868,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -93,868,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,643,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,715,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                107,405,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,947,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,780,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -107,405,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,688,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||||
| Depreciation | 
                                                762,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,393,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,138,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,831,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                762,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                599,731,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                112,909,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                735,496,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                109,543,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                735,496,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                576,788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,396,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,441,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,327,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Equity in earnings (losses) of affiliates | 
                                                55,798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,798,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,591,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                1,100,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,100,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                965,532,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                123,761,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,935,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                257,017,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,935,901,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,624,715,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,730,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,207,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,230,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |