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 | 
                                                1,109,855,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                853,402,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                5,074,031,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,352,161,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                49,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                186,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                3,394,105,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,114,347,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                226,433,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                301,814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                15,401,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,244,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                13,415,795,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,533,523,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Construction in progress | 
                                                4,493,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,569,190,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                4,258,261,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,189,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                1,988,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,059,016,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation and impairment | 
                                                -2,269,342,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,130,918,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                49,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | 
                                                1,163,114,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,236,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Other | 
                                                1,163,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,236,973,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -370,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -700,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                14,628,810,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,824,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                30,030,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,069,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,600,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                104,342,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,837,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,719,807,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,714,284,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                8,598,085,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,634,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                1,645,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,110,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                223,704,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                229,522,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                4,461,064,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,864,099,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                13,059,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,498,386,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                1,572,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,572,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                1,008,755,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,008,755,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                14,260,127,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,890,308,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -39,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -39,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                16,801,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,431,550,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                41,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,760,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                169,736,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                139,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                16,971,106,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,570,631,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                30,030,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,069,018,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |