Semi-Annual Consolidated Balance Sheet
| Concept | As at 2023-09-30 | As at 2023-03-31 | 
|---|---|---|
| Semi-annual consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                17,446,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,505,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                2,900,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                3,366,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,948,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                59,644,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,759,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                10,649,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,796,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Intangible assets | ||
| Intangible assets | 
                                                3,615,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,465,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                18,011,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,117,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                14,120,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,385,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                3,907,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,748,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                32,275,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,378,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                91,920,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                2,980,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,438,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                1,466,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                736,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                6,999,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,445,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                20,036,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,650,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                7,345,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,185,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                5,579,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                338,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                13,262,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,954,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                33,299,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,604,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                1,143,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Share capital | 
                                                1,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | 
                                                1,848,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,847,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                53,522,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                49,619,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -3,287,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,350,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                53,281,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                49,315,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                4,455,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                677,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                405,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans | 
                                                206,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                222,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                5,339,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,218,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                58,621,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,533,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                91,920,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |