| Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 |
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Cash and deposits | - | 546 | 940 | 1,893 | 1,371 | 1,910 |
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Accounts receivable - trade | - | 161 | 149 | 197 | 271 | 395 |
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Work in process | - | 67 | 115 | 66 | 60 | 69 |
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Raw materials and supplies | - | 182 | 167 | 183 | 516 | 516 |
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Other | - | 2 | 4 | 3 | 3 | 219 |
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Advance payments to suppliers | - | 55 | 56 | 74 | 115 | - |
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Current assets | - | 1,052 | 1,459 | 2,469 | 2,388 | 3,109 |
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Prepaid expenses | - | 39 | 29 | 54 | 39 | - |
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Consumption taxes refund receivable | - | - | - | - | 12 | - |
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Other | - | 2 | 4 | 3 | 3 | 219 |
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Current assets | - | 1,052 | 1,459 | 2,469 | 2,388 | 3,109 |
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Buildings and structures | - | - | - | - | 73 | 77 |
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Accumulated depreciation | - | -27 | -31 | -36 | -39 | - |
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Accumulated depreciation | - | - | - | - | - | -42 |
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Buildings and structures, net | - | - | - | - | 33 | 35 |
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Tools, furniture and fixtures | - | 107 | 111 | 114 | 137 | 251 |
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Accumulated depreciation | - | -71 | -86 | -97 | -106 | - |
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Accumulated depreciation | - | - | - | - | - | -151 |
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Tools, furniture and fixtures, net | - | 36 | 25 | 17 | 32 | 100 |
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Property, plant and equipment | - | 71 | 58 | 46 | 65 | 135 |
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Software | - | 70 | 109 | 96 | 68 | 123 |
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Goodwill | - | - | - | - | - | 56 |
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Software in progress | - | 15 | 10 | 1 | 30 | - |
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Software | - | 70 | 109 | 96 | 68 | 123 |
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Other | - | 2 | 2 | 2 | 2 | 2 |
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Intangible assets | - | 87 | 122 | 99 | 100 | 182 |
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Investment securities | - | 2 | 2 | 2 | 2 | 163 |
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Shares of subsidiaries and associates | - | 26 | - | - | - | - |
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Long-term prepaid expenses | - | 4 | 3 | 3 | 2 | 3 |
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Long-term prepaid expenses | - | 4 | 3 | 3 | 2 | 3 |
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Deferred tax assets | - | 60 | 65 | 76 | 79 | 73 |
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Deferred tax assets | - | 60 | 65 | 76 | 79 | 73 |
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Insurance funds | - | 71 | 82 | 93 | 100 | 49 |
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Insurance funds | - | 71 | 82 | 93 | 100 | 49 |
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Leasehold deposits | - | 62 | 59 | 56 | 54 | 51 |
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Leasehold deposits | - | 62 | 59 | 56 | 54 | 51 |
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Other | - | 1 | 13 | 6 | 6 | 12 |
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Distressed receivables | - | - | - | - | 1 | - |
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Investments and other assets | - | 225 | 224 | 235 | 242 | 351 |
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Other | - | 1 | 13 | 6 | 6 | 12 |
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Allowance for doubtful accounts | - | - | - | - | -1 | - |
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Investments and other assets | - | 225 | 224 | 235 | 242 | 351 |
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Non-current assets | - | 383 | 404 | 380 | 408 | 668 |
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Assets | - | 1,436 | 1,863 | 2,849 | 2,795 | 3,777 |
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Accounts payable - trade | - | 42 | 35 | 39 | 71 | 106 |
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Short-term borrowings | - | - | - | - | - | 100 |
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Current portion of long-term borrowings | - | 8 | 80 | 80 | 55 | 88 |
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Accounts payable - other | - | 88 | 38 | 57 | 51 | 93 |
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Accrued expenses | - | 122 | 100 | 88 | 88 | 115 |
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Income taxes payable | - | 51 | 38 | 48 | 38 | 56 |
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Contract liabilities | - | - | - | - | 877 | 1,022 |
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Provision for bonuses | - | - | - | - | - | 34 |
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Provision for director's performance-linked incentive compensation | - | - | - | - | - | 17 |
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Provision for employee's performance-linked incentive compensation | - | - | - | - | - | 2 |
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Deposits received | - | 18 | 13 | 11 | 11 | 16 |
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Other | - | 27 | 53 | 42 | 0 | 79 |
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Current liabilities | - | 962 | 1,101 | 1,190 | 1,190 | 1,729 |
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Long-term borrowings | - | - | 135 | 55 | - | 211 |
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Provision for retirement benefits | - | 29 | 37 | 40 | 44 | - |
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Retirement benefit liability | - | - | - | - | - | 50 |
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Provision for retirement benefits for directors (and other officers) | - | 108 | 117 | 129 | 141 | - |
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Non-current liabilities | - | 137 | 289 | 223 | 184 | 261 |
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Non-current liabilities | - | 137 | 289 | 223 | 184 | 261 |
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Liabilities | - | 1,099 | 1,390 | 1,414 | 1,375 | 1,991 |
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Share capital | - | 50 | 50 | 50 | 56 | 61 |
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Legal capital surplus | - | - | - | 0 | 6 | - |
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Other capital surplus | - | 1 | 7 | 761 | 746 | - |
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Capital surplus | - | 1 | 7 | 761 | 752 | 736 |
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Capital surplus | - | 1 | 7 | 761 | 752 | 736 |
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Retained earnings brought forward | - | 314 | 440 | 624 | 854 | - |
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Retained earnings | - | 315 | 441 | 624 | 854 | 1,180 |
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Retained earnings | - | 315 | 441 | 624 | 854 | 1,180 |
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Treasury shares | - | -29 | -25 | - | -242 | -197 |
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Shareholders' equity | - | 337 | 473 | 1,436 | 1,421 | 1,780 |
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Valuation difference on available-for-sale securities | - | - | - | - | - | 7 |
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Valuation and translation adjustments | - | - | - | - | - | 7 |
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Net assets | 244 | 337 | 473 | 1,436 | 1,421 | 1,786 |
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Valuation difference on available-for-sale securities | - | - | - | - | - | 7 |
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Valuation and translation adjustments | - | - | - | - | - | 7 |
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Net assets | 244 | 337 | 473 | 1,436 | 1,421 | 1,786 |
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Liabilities and net assets | - | 1,436 | 1,863 | 2,849 | 2,795 | 3,777 |
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