Notes - Segment Information, Etc.
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Notes - Segment information, etc. | ||||||||||||||||||
| Segment information | ||||||||||||||||||
| Disclosure of sales, profit (loss), asset, liability, and other items for each reportable segment | ||||||||||||||||||
| Sales | ||||||||||||||||||
| Revenues from external customers | 
                                                190,984,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,284,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                807,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                342,906,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                806,148,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,052,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                807,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                194,972,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                176,182,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                187,182,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                761,123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,178,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                762,302,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                322,902,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                762,302,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                74,856,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                72,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                218,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                408,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,275,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,147,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,467,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                225,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,467,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||||||
| Depreciation | 
                                                12,265,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,455,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,644,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,905,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,301,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,317,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,675,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,326,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,562,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,300,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,648,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,841,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,505,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,388,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,664,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,397,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments in entities accounted for using equity method | 
                                                2,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,742,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,814,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,814,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,814,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                11,563,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,764,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,628,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,487,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,514,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,176,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,250,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,282,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,451,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                49,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,062,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                73,401,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                49,339,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,073,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |