Quarterly Consolidated Balance Sheet
| Concept | As at 2023-09-30 | As at 2023-03-31 | 
|---|---|---|
| Quarterly consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                43,117,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,575,005,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,750,781,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,958,614,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -1,473,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                47,697,155,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,998,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                561,409,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                586,505,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Other | — | — | 
| Other, net | 
                                                198,680,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                217,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                208,648,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                298,324,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                11,512,830,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,881,257,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                8,989,178,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,861,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                182,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                656,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,332,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,355,610,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                12,282,888,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,766,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                59,980,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,765,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Income taxes payable | 
                                                2,105,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,682,440,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,011,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,634,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                6,958,836,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,678,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                5,600,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                5,768,792,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                366,403,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                12,727,629,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,044,524,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                4,045,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,045,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                3,894,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,908,630,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                50,767,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,052,399,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -11,963,059,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,963,063,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                46,743,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,043,518,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                466,447,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                357,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                -8,157,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,940,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                458,290,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                387,641,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                12,714,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                37,434,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                274,974,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                47,252,413,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                54,720,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                59,980,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,765,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |