Consolidated Balance Sheet
| Concept | As at 2024-11-15 | As at 2024-05-15 | 
|---|---|---|
| Consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                64,457,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                58,688,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                49,394,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,504,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                86,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                17,488,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,116,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                279,528,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                273,482,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                129,474,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                131,621,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                16,223,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,797,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets, net | 
                                                12,360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,466,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                3,699,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                81,005,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                83,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Own-used assets | ||
| Leased assets | — | — | 
| Other | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Goodwill | 
                                                20,607,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,944,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other intangible assets | ||
| Other | 
                                                2,035,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,564,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                29,066,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,337,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Software | 
                                                6,423,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,828,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                115,854,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                115,110,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investment securities | 
                                                35,026,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,181,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Guarantee deposits | 
                                                70,360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                70,215,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                5,739,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,458,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                4,777,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,304,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -49,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -49,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Non-current assets | 
                                                274,394,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                276,069,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                553,923,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                549,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | ||
| Non-current liabilities | 
                                                61,074,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                62,891,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                22,100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,075,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                16,338,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,327,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                2,613,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,014,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                7,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,270,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                5,690,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,235,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                185,987,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                181,362,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                18,546,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,415,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                247,061,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                244,254,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                259,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                257,205,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                11,621,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,535,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                21,536,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,449,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                231,447,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                229,535,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -5,318,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,314,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                22,746,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,358,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                22,624,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,150,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                873,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,017,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                23,954,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,715,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                306,861,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                305,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                553,923,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                549,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Income taxes payable | 
                                                6,420,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,794,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                1,561,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current portion of long-term borrowings | 
                                                6,575,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,766,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                12,952,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses for directors (and other officers) | 
                                                299,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                665,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Other | 
                                                4,139,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,025,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Valuation and translation adjustments | ||
| Remeasurements of defined benefit plans | 
                                                122,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                207,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |