| Dec 31, 2017 | Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
|---|
| Profit (loss) | 4,575 | 5,330 | -2,391 | -578 | 15,565 | 9,538 | 1,022 | 1,380 |
|---|
| Depreciation and amortization | 2,768 | 2,799 | 3,067 | 2,960 | 2,523 | 2,580 | 2,675 | 2,632 |
|---|
| Impairment charges | 206 | 994 | 1,927 | -133 | -218 | 1,026 | 1,038 | 116 |
|---|
| Bargain purchase gain | - | 209 | - | - | - | 100 | - | - |
|---|
| Interest expense | 879 | 687 | 695 | 477 | 357 | 401 | 715 | 510 |
|---|
| Interest income | 56 | 72 | 88 | 56 | 79 | 188 | 570 | 400 |
|---|
| Income tax expense | 432 | -349 | 459 | 1,666 | 2,460 | 1,717 | 238 | 1,535 |
|---|
| Net loss (gain) on disposal of subsidiaries | 18 | 16 | 101 | 1,460 | 104 | - | -1,469 | - |
|---|
| Income from investments in associates, joint ventures and other investments | 448 | 652 | 347 | 234 | 2,204 | 1,317 | 1,184 | 779 |
|---|
| Impairment on investments in associates, joint ventures and other investments | - | - | - | - | - | - | 1,405 | - |
|---|
| Provision on pensions and other post-employment benefits | 555 | 463 | 435 | 430 | 147 | 176 | 249 | 166 |
|---|
| Unrealized foreign exchange effects | -541 | 152 | 7 | 321 | -154 | -82 | 409 | 639 |
|---|
| Write-downs of inventories to net realizable value, provisions and other non-cash operating expenses net | 781 | 789 | 818 | 597 | 1,313 | 399 | -400 | 592 |
|---|
| Trade accounts receivable and other | -620 | -646 | 964 | -76 | -2,535 | 1,133 | 307 | -192 |
|---|
| Inventories | -2,347 | -4,652 | 2,469 | 1,786 | -8,654 | -2,062 | 1,568 | 238 |
|---|
| Trade accounts payable and other | 1,094 | 914 | -1,236 | -214 | 4,780 | -294 | -271 | 56 |
|---|
| VAT and other amounts (paid) received to/from public authorities | -177 | -544 | 196 | 400 | -123 | -410 | 9 | -204 |
|---|
| Other working capital and provisions movements | 282 | -44 | 110 | 564 | 672 | -608 | -110 | 287 |
|---|
| Interest paid | 947 | 749 | 723 | 604 | 479 | 440 | 788 | 799 |
|---|
| Interest received | 57 | 67 | 118 | 69 | 73 | 178 | 553 | 358 |
|---|
| Income taxes paid | 506 | 629 | 484 | 705 | 2,128 | 2,940 | 977 | 763 |
|---|
| Dividends received, classified as operating activities | 232 | 360 | 370 | 189 | 261 | 493 | 316 | 295 |
|---|
| Cash contributions to plan assets and benefits paid for pensions and other post-employment benefits | 496 | 472 | 348 | 332 | 268 | 228 | 248 | 241 |
|---|
| Net cash provided by operating activities | 4,563 | 4,196 | 6,017 | 4,082 | 9,905 | 10,203 | 7,645 | 4,852 |
|---|
| Purchase of property, plant and equipment and intangibles | 2,819 | 3,305 | 3,572 | 2,439 | 3,008 | 3,468 | 4,613 | 4,405 |
|---|
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | 6 | 65 | 514 | 497 | -4 | - | 254 | - |
|---|
| Acquisitions of net assets of subsidiaries, net of cash acquired of 249, 4 and 39 in 2024, 2023 and 2022, respectively | -16 | 39 | 46 | - | 25 | 939 | 2,524 | 184 |
|---|
| Disposals of property, plant and equipment and intangibles | - | - | - | - | - | - | 718 | 568 |
|---|
| Acquisition of associates and joint ventures | - | - | - | - | - | - | 73 | 1,168 |
|---|
| Cash receipts from repayment of advances and loans made to related parties | - | - | - | - | - | - | - | 111 |
|---|
| (Acquisitions) disposals of financial assets | - | - | - | - | 80 | 32 | -560 | -216 |
|---|
| Other investing activities net | -77 | 257 | 122 | 271 | -149 | -44 | -170 | -125 |
|---|
| Net cash provided by / (used in) investing activities | -2,830 | -3,759 | -3,824 | -2,011 | -340 | -4,483 | -5,848 | -4,987 |
|---|
| Proceeds From (Payments For) Mandatorily Convertible Subordinated Notes | - | - | - | - | -1,196 | - | -340 | - |
|---|
| Transactions with non-controlling interests | - | - | - | - | - | - | - | -172 |
|---|
| Proceeds from short-term debt | 1,859 | 2,319 | 600 | 430 | 287 | 434 | 218 | 257 |
|---|
| Proceeds from long-term debt | 1,407 | 1,138 | 5,772 | 323 | 147 | 3,893 | 134 | 2,227 |
|---|
| Payments of short-term debt | 2,102 | 2,871 | 1,811 | 1,503 | 1,664 | 1,044 | 1,670 | 1,192 |
|---|
| Payments of long-term debt | 2,691 | 798 | 3,299 | 1,645 | 2,332 | - | 16 | 61 |
|---|
| Share buyback | - | 226 | 90 | 500 | 5,170 | 2,937 | 1,208 | 1,300 |
|---|
| Dividends paid (includes 187, 162 and 331 of dividends paid to non-controlling shareholders in 2024, 2023 and 2022, respectively) | 141 | 220 | 332 | 181 | 572 | 663 | 531 | 580 |
|---|
| Payment of principal portion of lease liabilities and other financing activities | - | - | 326 | 264 | 199 | 160 | 253 | 203 |
|---|
| Net cash provided by / (used in) financing activities | -1,731 | -689 | 514 | -1,498 | -10,898 | -477 | -3,666 | -680 |
|---|
| Net (decrease) increase in cash and cash equivalents | 2 | -252 | 2,707 | 573 | -1,333 | 5,243 | -1,869 | -815 |
|---|
| Effect of exchange rate changes on cash | 58 | -140 | -22 | 163 | -55 | -158 | 255 | -471 |
|---|