Consolidated Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                65,448,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,186,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Notes receivable - trade | 
                                                72,214,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,134,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                180,051,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                257,372,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Contract assets | 
                                                99,997,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,622,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                87,231,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                77,539,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                54,725,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,772,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                103,114,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                96,823,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                60,537,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,958,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -10,221,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -10,337,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                713,098,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                763,072,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                519,341,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                508,064,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                161,848,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                171,145,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investment securities | 
                                                107,192,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                118,427,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                31,394,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,745,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -2,397,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,429,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                331,479,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                311,456,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                26,013,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,462,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Retirement benefit asset | 
                                                25,659,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,401,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred assets | 
                                                77,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred assets | ||
| Assets | 
                                                1,232,518,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,271,174,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Notes and accounts payable - trade | 
                                                172,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                207,408,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                12,558,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                40,259,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                17,900,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,676,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Commercial papers | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for product warranties | 
                                                2,601,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,724,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                104,980,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                114,265,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                397,514,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                475,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                30,183,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Bonds payable | 
                                                30,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                65,646,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,803,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for retirement benefits for directors (and other officers) | 
                                                82,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                29,104,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                35,376,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                155,016,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                134,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                552,530,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                609,701,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                534,031,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                509,278,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                47,586,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                47,586,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                45,955,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,954,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                447,897,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                423,135,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -7,408,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,397,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                87,070,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,237,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                50,159,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,717,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | 
                                                -104,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                36,480,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,772,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                58,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                58,956,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                679,987,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                661,472,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                1,232,518,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,271,174,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Valuation and translation adjustments | ||
| Remeasurements of defined benefit plans | 
                                                535,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                782,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |