| Mar 31, 2015 | Mar 31, 2016 | Mar 31, 2017 | Mar 31, 2018 | Mar 31, 2019 | Mar 31, 2020 | Mar 31, 2021 | Mar 31, 2022 | Mar 31, 2023 | Mar 31, 2024 |
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Cash and deposits | - | - | - | - | 615 | - | - | 1,078 | 1,324 | 1,293 |
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Notes receivable - trade | - | - | - | - | - | - | - | 162 | 175 | 190 |
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Accounts receivable - trade | - | - | - | - | - | - | - | 1,689 | 1,914 | 1,847 |
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Merchandise | - | - | - | - | - | - | - | 102 | 137 | 327 |
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Supplies | - | - | - | - | - | - | - | 35 | 34 | 43 |
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Other | - | - | - | - | 112 | - | - | 242 | 211 | 159 |
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Advance payments to suppliers | - | - | - | - | - | - | - | - | 112 | 36 |
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Allowance for doubtful accounts | - | - | - | - | -6 | - | - | -15 | -8 | -7 |
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Prepaid expenses | - | - | - | - | - | - | - | - | 64 | 73 |
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Current assets | - | - | - | - | 2,276 | - | - | 3,294 | 3,787 | 3,852 |
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Other | - | - | - | - | 112 | - | - | 242 | 211 | 159 |
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Allowance for doubtful accounts | - | - | - | - | -6 | - | - | -15 | -8 | -7 |
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Current assets | - | - | - | - | 2,276 | - | - | 3,294 | 3,787 | 3,852 |
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Buildings and structures | - | - | - | - | - | - | - | 362 | 329 | 856 |
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Accumulated depreciation | - | - | - | - | - | - | - | -122 | -129 | -147 |
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Buildings and structures, net | - | - | - | - | - | - | - | 240 | 200 | 709 |
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Buildings | - | - | - | - | 339 | - | - | - | 324 | 852 |
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Accumulated depreciation | - | - | - | - | -74 | - | - | - | -127 | -145 |
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Buildings, net | - | - | - | - | 265 | - | - | - | 198 | 707 |
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Machinery, equipment and vehicles | - | - | - | - | 485 | - | - | 522 | 567 | 619 |
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Accumulated depreciation | - | - | - | - | - | - | - | -349 | -395 | -442 |
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Machinery, equipment and vehicles, net | - | - | - | - | 298 | - | - | 173 | 172 | 177 |
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Machinery and equipment | - | - | - | - | - | - | - | - | 530 | 582 |
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Accumulated depreciation | - | - | - | - | -187 | - | - | - | -360 | -407 |
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Machinery and equipment, net | - | - | - | - | - | - | - | - | 169 | 175 |
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Tools, furniture and fixtures | - | - | - | - | 277 | - | - | 332 | 348 | 369 |
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Accumulated depreciation | - | - | - | - | -204 | - | - | -248 | -262 | -291 |
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Tools, furniture and fixtures, net | - | - | - | - | 73 | - | - | 84 | 86 | 79 |
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Vehicles | - | - | - | - | - | - | - | - | 32 | 32 |
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Accumulated depreciation | - | - | - | - | - | - | - | - | -29 | -30 |
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Vehicles, net | - | - | - | - | - | - | - | - | 2 | 2 |
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Land | - | - | - | - | 669 | - | - | 669 | 669 | 1,584 |
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Tools, furniture and fixtures | - | - | - | - | 277 | - | - | 332 | 348 | 369 |
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Accumulated depreciation | - | - | - | - | -204 | - | - | -248 | -262 | -291 |
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Tools, furniture and fixtures, net | - | - | - | - | 73 | - | - | 84 | 86 | 79 |
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Leased assets | - | - | - | - | 18 | - | - | 14 | 14 | 5 |
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Accumulated depreciation | - | - | - | - | -7 | - | - | -10 | -13 | -4 |
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Leased assets, net | - | - | - | - | 11 | - | - | 4 | 1 | 1 |
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Land | - | - | - | - | 669 | - | - | 669 | 669 | 1,584 |
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Leased assets | - | - | - | - | 18 | - | - | 14 | 14 | 5 |
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Accumulated depreciation | - | - | - | - | -7 | - | - | -10 | -13 | -4 |
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Leased assets, net | - | - | - | - | 11 | - | - | 4 | 1 | 1 |
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Construction in progress | - | - | - | - | - | - | - | 22 | 24 | 170 |
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Construction in progress | - | - | - | - | - | - | - | 22 | 24 | 170 |
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Property, plant and equipment | - | - | - | - | 1,315 | - | - | 1,191 | 1,152 | 2,720 |
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Property, plant and equipment | - | - | - | - | 1,315 | - | - | 1,191 | 1,152 | 2,720 |
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Software | - | - | - | - | - | - | - | 45 | 44 | 33 |
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Goodwill | - | - | - | - | 474 | - | - | 214 | 190 | 166 |
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Software in progress | - | - | - | - | - | - | - | - | 5 | - |
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Software | - | - | - | - | - | - | - | 45 | 44 | 33 |
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Intangible assets | - | - | - | - | 487 | - | - | 259 | 240 | 199 |
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Software in progress | - | - | - | - | - | - | - | - | 5 | - |
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Intangible assets | - | - | - | - | 487 | - | - | 259 | 240 | 199 |
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Investment securities | - | - | - | - | - | - | - | 66 | 66 | 66 |
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Shares of subsidiaries and associates | - | - | - | - | - | - | - | - | 552 | 552 |
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Deferred tax assets | - | - | - | - | - | - | - | 127 | 84 | 62 |
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Investments in capital | - | - | - | - | - | - | - | - | 0 | 0 |
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Other | - | - | - | - | 186 | - | - | 279 | 276 | 246 |
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Long-term loans receivable from subsidiaries and associates | - | - | - | - | - | - | - | - | 170 | 170 |
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Allowance for doubtful accounts | - | - | - | - | -24 | - | - | -22 | -2 | -2 |
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Distressed receivables | - | - | - | - | - | - | - | - | 2 | 2 |
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Investments and other assets | - | - | - | - | 235 | - | - | 449 | 423 | 371 |
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Long-term prepaid expenses | - | - | - | - | - | - | - | - | 2 | 1 |
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Deferred tax assets | - | - | - | - | - | - | - | 127 | 84 | 62 |
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Leasehold and guarantee deposits | - | - | - | - | - | - | - | - | 215 | 177 |
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Other | - | - | - | - | 186 | - | - | 279 | 276 | 246 |
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Allowance for doubtful accounts | - | - | - | - | -24 | - | - | -22 | -2 | -2 |
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Investments and other assets | - | - | - | - | 235 | - | - | 449 | 423 | 371 |
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Non-current assets | - | - | - | - | 2,037 | - | - | 1,899 | 1,815 | 3,290 |
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Assets | - | - | - | - | 4,313 | - | - | 5,193 | 5,602 | 7,142 |
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Accounts payable - trade | - | - | - | - | 914 | - | - | 1,271 | 1,436 | 1,326 |
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Short-term borrowings | - | - | - | - | - | - | - | 100 | 100 | - |
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Current portion of long-term borrowings | - | - | - | - | 269 | - | - | 270 | 229 | 350 |
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Lease liabilities | - | - | - | - | - | - | - | - | 1 | 1 |
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Income taxes payable | - | - | - | - | 82 | - | - | - | 106 | 127 |
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Accounts payable - other | - | - | - | - | - | - | - | - | 202 | 158 |
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Provision for bonuses | - | - | - | - | - | - | - | 107 | 128 | 117 |
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Accrued expenses | - | - | - | - | - | - | - | - | 126 | 166 |
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Advances received | - | - | - | - | - | - | - | 42 | 61 | 68 |
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Income taxes payable | - | - | - | - | 82 | - | - | - | 106 | 127 |
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Other | - | - | - | - | 408 | - | - | 365 | 413 | 419 |
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Provision for bonuses | - | - | - | - | - | - | - | 107 | 128 | 117 |
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Current liabilities | - | - | - | - | 1,673 | - | - | 2,155 | 2,473 | 2,407 |
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Advances received | - | - | - | - | - | - | - | 42 | 61 | 68 |
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Deposits received | - | - | - | - | - | - | - | - | 13 | 33 |
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Other | - | - | - | - | 408 | - | - | 365 | 413 | 419 |
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Current liabilities | - | - | - | - | 1,673 | - | - | 2,155 | 2,473 | 2,407 |
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Long-term borrowings | - | - | - | - | 1,046 | - | - | 872 | 643 | 1,811 |
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Lease liabilities | - | - | - | - | - | - | - | - | 1 | - |
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Other | - | - | - | - | 18 | - | - | 2 | 7 | 14 |
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Other | - | - | - | - | 18 | - | - | 2 | 7 | 14 |
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Non-current liabilities | - | - | - | - | 1,064 | - | - | 875 | 651 | 1,825 |
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Non-current liabilities | - | - | - | - | 1,064 | - | - | 875 | 651 | 1,825 |
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Liabilities | - | - | - | - | 2,737 | - | - | 3,030 | 3,124 | 4,232 |
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Share capital | - | - | - | - | 227 | - | - | 343 | 343 | 365 |
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Legal capital surplus | - | - | - | - | - | - | - | - | 269 | 291 |
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Capital surplus | - | - | - | - | 154 | - | - | 269 | 269 | 291 |
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Capital surplus | - | - | - | - | 154 | - | - | 269 | 269 | 291 |
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Retained earnings brought forward | - | - | - | - | - | - | - | - | 1,871 | 2,238 |
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Retained earnings | - | - | - | - | 1,190 | - | - | 1,529 | 1,844 | 2,246 |
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Retained earnings | - | - | - | - | 1,190 | - | - | 1,529 | 1,844 | 2,246 |
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Treasury shares | - | - | - | - | -0 | - | - | -50 | -50 | -50 |
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Shareholders' equity | - | - | - | - | 1,571 | - | - | 2,090 | 2,405 | 2,853 |
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Share acquisition rights | - | - | - | - | 4 | - | - | 73 | 73 | 57 |
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Net assets | - | - | - | 1,368 | 1,575 | - | 2,157 | 2,163 | 2,478 | 2,910 |
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Liabilities and net assets | - | - | - | - | 4,313 | - | - | 5,193 | 5,602 | 7,142 |
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