Quarterly Balance Sheet
| Concept | As at 2023-12-31 | As at 2023-03-31 | 
|---|---|---|
| Quarterly balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                2,856,470,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,358,051,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Inventories | 
                                                6,425,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,921,179,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                548,773,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -3,036,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,582,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                14,460,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,094,831,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                7,027,651,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,512,954,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Land | 
                                                4,102,409,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,825,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                675,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                488,478,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                162,245,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                198,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | 
                                                2,401,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,102,285,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Allowance for doubtful accounts | 
                                                -503,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -821,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                9,591,238,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,813,907,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                24,051,844,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,908,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Notes and accounts payable - trade | 
                                                1,419,405,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,406,219,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                210,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                280,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                203,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                382,224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                757,831,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                658,061,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                3,144,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,067,501,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Bonds payable | 
                                                30,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                2,091,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                581,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                360,035,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                217,446,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                3,718,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,970,586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                6,862,828,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,038,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                768,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                768,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                595,769,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                590,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                15,415,657,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,298,707,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -507,870,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -511,524,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                16,272,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,146,264,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                81,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,328,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                592,745,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                411,382,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                42,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                17,189,015,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,870,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                24,051,844,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,908,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |