Semi-Annual Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Semi-annual balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                101,540,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                105,182,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                6,930,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,296,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -88,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -90,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                165,493,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                169,661,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                94,595,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,576,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                53,590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,963,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                4,964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,475,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                2,107,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,973,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                130,104,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                126,319,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                164,843,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                148,195,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                34,847,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,984,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -108,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -108,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                261,547,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                241,744,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                427,040,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                411,406,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                600,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                240,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                5,515,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,628,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                14,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,875,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                58,168,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,927,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Non-current liabilities | 
                                                39,833,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,248,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                10,644,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,779,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                23,820,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,166,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                98,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,175,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Provision for retirement benefits for directors (and other officers) | 
                                                228,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                228,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                1,542,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Net assets | ||
| Share capital | 
                                                11,707,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,707,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | ||
| Capital surplus | 
                                                22,774,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,760,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | ||
| Retained earnings | 
                                                175,304,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                169,065,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -11,582,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,594,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                198,203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                191,937,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                31,620,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,644,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | 
                                                -7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Revaluation reserve for land | 
                                                11,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                47,699,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,512,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                329,038,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                316,230,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                427,040,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                411,406,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |