Semi-Annual Consolidated Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Semi-annual consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                26,424,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                5,734,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,691,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -51,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                100,921,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,031,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                60,607,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,428,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                27,737,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,882,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                13,374,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,371,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                2,628,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,642,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                16,867,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,532,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Goodwill | 
                                                12,358,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,955,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                9,756,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,471,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                22,115,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,426,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                20,502,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                14,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                11,637,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,277,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                103,225,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                104,056,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                204,147,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                195,087,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                5,300,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                450,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                737,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,072,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                8,374,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,786,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                93,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                84,858,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                43,328,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,108,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                2,683,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,587,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                7,171,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                53,261,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                146,261,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                136,735,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for retirement benefits for directors (and other officers) | 
                                                77,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                4,412,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,086,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses for directors (and other officers) | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Share capital | 
                                                3,953,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,953,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | 
                                                9,228,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,228,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                46,602,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,020,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -1,946,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,898,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                57,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                58,303,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Remeasurements of defined benefit plans | 
                                                48,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                48,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                48,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                57,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                58,351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                204,147,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                195,087,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |