Notes - Segment Information, Etc.
| Concept | 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 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 
                                                80,826,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                216,549,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                179,273,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,722,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,720,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,276,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                98,446,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                224,272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                172,198,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                214,368,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,645,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,968,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,230,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                209,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,261,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                217,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,554,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Transactions with other segments | 
                                                1,903,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,665,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,650,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,796,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,461,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                746,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,461,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,487,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,183,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,256,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,659,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,827,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,487,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,220,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other items | ||||||||||||||||||
| Depreciation | 
                                                3,352,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,174,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,007,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,327,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                441,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                711,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                167,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,654,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,616,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,864,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                711,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,102,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,475,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,735,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                416,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,152,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Increase in property, plant and equipment and intangible assets | 
                                                3,737,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,160,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,963,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,273,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,844,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                268,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                196,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,226,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,005,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,725,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,790,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                177,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,586,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,890,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                722,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,612,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                164,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |