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 | 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 | 
                                                79,875,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,250,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                86,362,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                486,802,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                270,315,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                486,802,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                468,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                468,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                96,476,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                80,999,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                244,620,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                -12,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,907,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                514,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -21,241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                410,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,608,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -6,520,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,939,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||
| Depreciation | 
                                                3,914,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,023,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,319,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,171,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,820,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,531,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,041,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,572,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,817,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,916,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,409,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments in entities accounted for using equity method | 
                                                4,872,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,133,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,690,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,685,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                211,629,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                176,939,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,222,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                173,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                206,932,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,843,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,679,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                4,006,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,236,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,932,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                55,275,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,101,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,658,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,383,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,053,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,009,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,062,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,558,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,932,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,795,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,768,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |