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 | 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 | 
                                                94,461,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,310,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,650,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,461,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,472,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,027,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,562,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,921,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,921,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,898,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,232,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,227,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                734,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,434,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,016,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,016,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,838,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,248,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,248,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                548,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||
| Depreciation | 
                                                4,881,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,584,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,116,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                579,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,301,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                495,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,105,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,035,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,167,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,758,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,068,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,722,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                6,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,066,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                880,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                59,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,261,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                225,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,088,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                828,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                81,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,177,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,259,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,280,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,387,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,681,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |