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 | 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 | 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 | 
                                                4,887,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                248,495,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                314,125,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                76,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,136,684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                295,757,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                156,085,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,300,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,095,384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,136,684,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                929,798,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,979,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,429,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                140,750,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                265,341,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                197,058,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                965,778,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,456,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                243,761,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                965,778,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                408,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                773,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                304,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                254,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,223,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                409,440,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                424,663,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -424,663,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                355,366,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,949,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                544,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                285,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                274,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                106,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -367,316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                354,134,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                367,316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||||||||||
| Depreciation | 
                                                6,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,375,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,887,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,509,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,518,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,730,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                842,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,666,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,509,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,622,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                815,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,265,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,956,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,822,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,021,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,341,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |