Semi-Annual Balance Sheet
| Concept | As at 2023-09-30 | As at 2023-03-31 | 
|---|---|---|
| Semi-annual balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                17,527,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,667,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                887,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,071,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                55,151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                59,201,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                6,432,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,321,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                688,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                791,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                12,509,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,305,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                13,854,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,627,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,353,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,331,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                20,974,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,740,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                76,126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,941,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                2,330,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,300,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                693,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                812,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,655,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,657,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                36,202,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                41,642,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Non-current liabilities | 
                                                2,663,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,918,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,290,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                635,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                38,866,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,561,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Net assets | ||
| Share capital | 
                                                3,857,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,857,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | ||
| Capital surplus | 
                                                3,798,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,777,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | ||
| Retained earnings | 
                                                25,739,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,830,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -660,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -672,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                32,734,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,792,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                4,887,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                4,525,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,588,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                37,260,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,380,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                76,126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,941,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |