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 | 
                                                50,096,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,324,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease receivables | 
                                                41,530,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,132,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                64,983,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,997,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                3,897,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,453,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -73,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -84,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                227,866,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                231,269,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - other | 
                                                135,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                510,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                112,966,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                111,293,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                3,623,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,102,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                31,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,954,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                4,473,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,951,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                4,788,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,603,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                4,730,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,546,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                57,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                40,622,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,944,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                59,927,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                58,243,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term loans receivable | 
                                                7,933,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                8,746,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,541,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,624,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,317,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                177,682,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                174,141,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                405,549,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                405,411,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Accounts payable - trade | 
                                                113,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                162,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                3,715,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,099,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                3,487,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                69,395,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,198,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Unearned revenue | 
                                                24,826,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,946,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                8,651,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,818,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Non-current liabilities | 
                                                57,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                73,229,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Bonds payable | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                39,064,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,016,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                2,381,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,326,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                7,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,032,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                126,833,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                133,428,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Provision for bonuses | 
                                                599,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                1,850,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,416,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Net assets | ||
| Share capital | 
                                                10,172,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,129,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | ||
| Capital surplus | 
                                                132,040,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                131,958,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | ||
| Retained earnings | 
                                                132,615,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                126,015,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -7,924,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,924,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                266,904,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                260,178,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                2,026,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,963,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | 
                                                272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                516,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                9,622,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,043,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                278,715,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                271,982,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                405,549,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                405,411,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |