TOTAL Liabilities and Stockholders' Equity Total Stockholders' equity Beginning of the period End of the period Stockholders' Equity Attributable to Parent Total non-current liabilities Liabilities, Noncurrent Total current liabilities Liabilities, Current Unappropriated retained earnings Retained Earnings, Unappropriated Other cumulative comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax Mandatorily convertible notes - preferred shares Carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which is mandatory to be exchanged for a specified amount of one or more preferred stock. Mandatorily convertible notes - preferred shares Mandatorily convertible notes - common shares Carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which is mandatory to be exchanged for a specified amount of one or more common stock. Mandatorily convertible notes - common shares Additional paid-in capital Additional Paid in Capital, Total Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Ending Balance Additional Paid in Capital Treasury Stock, Value Treasury stock -77,581,904 (2009 - 77,581,904) preferred and 74,997,899 (2009 - 74,997,899) common shares Treasury Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Treasury stock -xxx (2009 - 77,581,904) preferred and xxx (2009 - 74,997,899) common shares Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common stock - 3,600,000,000 no-par-value shares authorized and 3,256,724,482 (2009 - 3,256,724,482) issued Preferred Stock, Value, Issued Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Preferred class A stock - 7,200,000,000 no-par-value shares authorized and 2,108,579,618 (2009 - 2,108,579,618) issued Other Other Liabilities, Noncurrent Provisions for asset retirement obligations Asset Retirement Obligations, Noncurrent, Total Asset Retirement Obligations, Noncurrent, Ending Balance Asset Retirement Obligations, Noncurrent Noncontrolling interests Beginning of the period End of the period Stockholders' Equity Attributable to Noncontrolling Interest Deferred income tax Deferred Tax Liabilities, Noncurrent Other Other Liabilities, Current Provisions for asset retirement obligations Asset Retirement Obligation, Current, Beginning Balance Asset Retirement Obligation, Current, Ending Balance Asset Retirement Obligation, Current Railway Sub Concession Agreement Payable Current Liabilities Railway sub-concession agreement payable Railway sub-concession agreement payable Current portion of the amount entered with Government for the exploitation and development of public rail cargo transport services. Payroll and related charges Employee-related Liabilities, Current, Total Employee-related Liabilities, Current Current portion of long-term debt Long-term Debt, Current Maturities, Total Long-term Debt, Current Maturities Short-term debt Short-term Borrowings, Total Short-term Borrowings TOTAL Assets Total current assets Assets, Current Investments in affiliated companies, joint ventures and others Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Total Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Total other assets Other Assets, Total Others Other Assets, Noncurrent Advances to suppliers - energy Advance provided under contract for the purchase of energy, the main raw material for aluminum production. Advances to suppliers - energy Judicial deposits Deposits Assets, Noncurrent Prepaid expenses Prepaid Expense, Noncurrent, Total Prepaid Expense, Noncurrent Prepaid pension cost Prepaid Pension Costs Related parties Due from Related Parties, Noncurrent, Total Due from Related Parties, Noncurrent Goodwill on acquisition of subsidiaries Goodwill, Beginning Balance Goodwill, Ending Balance Goodwill Others Other Assets, Current Deferred income tax Deferred Tax Assets, Net, Current, Total Deferred Tax Assets, Net, Current, Beginning Balance Deferred Tax Assets, Net, Current, Ending Balance Deferred Tax Assets, Net, Current Inventories Inventory, Net, Total Inventory, Net Unrelated parties Accounts Receivable, Net, Current, Total Accounts Receivable, Net, Current Short-term investments Short-term Investments, Total Short-term Investments Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash and Cash Equivalents, at Carrying Value Net income attributable to the Company's stockholders Net Income (Loss) Attributable to Parent Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to noncontrolling interests Net income (loss) attributable to noncontrolling interests Net income attributable to noncontrolling interests Net income attributable to noncontrolling interests Equity in results of affiliates, joint ventures and other investments Equity in results of affiliates, joint ventures and other investments Income (Loss) from Equity Method Investments Total income tax Total income tax Income Tax Expense (Benefit) Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income before discontinued operations, income taxes and equity results Deferred Deferred Income Tax Expense (Benefit) Current Current Income Tax Expense (Benefit), Total Current Income Tax Expense (Benefit) Total non-operating income (expenses) Nonoperating Income (Expense) Operating income Operating Income (Loss), Total Operating Income (Loss) Foreign exchange and indexation gains (losses), net Foreign Currency Transaction Gain (Loss), before Tax, Total Foreign Currency Transaction Gain (Loss), before Tax Gains (losses) on derivatives, net Gain (Loss) on Derivative Instruments, Net, Pretax, Total Gain (Loss) on Derivative Instruments, Net, Pretax Revenues before taxes Sales Revenue, Net Other Other Cost and Expense, Operating Other Other Cost of Operating Revenue Other products and services Other Sales Revenue, Net Increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease), Total Cash and Cash Equivalents, Period Increase (Decrease) Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) investing activities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Others Increase (Decrease) in Other Operating Liabilities Income taxes Increase (Decrease) in Accrued Income Taxes Payable Payroll and related charges Increase (Decrease) in Employee Related Liabilities, Total Increase (Decrease) in Employee Related Liabilities Others Increase (Decrease) in Other Operating Assets Inventories Increase (Decrease) in Inventories, Total Increase (Decrease) in Inventories Others Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other Unrealized interest (income) expense, net Interest accrual, net. (Payments deducted) Unrealized interest (income) expense, net Unrealized derivative losses (gains), net Unrealized Gain (Loss) on Derivatives Foreign Currency Transaction Gain (Loss), Unrealized Foreign exchange and indexation gains, net Loss on disposal of property, plant and equipment Gain (Loss) on Sale of Property Plant Equipment, Total Gain (Loss) on Sale of Property Plant Equipment Deferred income taxes Depreciation, depletion and amortization Depreciation, Depletion and Amortization, Total Depreciation, Depletion and Amortization Net income Proceeds from disposal of investments/property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment, Total Proceeds from Sale of Property, Plant, and Equipment Additions to, property, plant and equipment Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Additions to, property, plant and equipment Investments Payments to Acquire Investments, Total Payments to Acquire Investments Investments Judicial deposits Payments made following Court requirements, in order to be entitled to either initiate or continue a legal action. These amounts are released upon receipt of a final favorable outcome from the legal action. In the case of an unfavorable outcome, the deposits are transferred to the prevailing party. Judicial deposits Others Payments to Acquire Other Receivables Others Dividends and interest attributed to noncontrolling interest Payments of Dividends, Noncontrolling Interest Dividends and interest attributed to noncontrolling interest Third parties Proceeds from Issuance of Other Long-term Debt Third parties Third parties Repayments of Other Long-term Debt Repayments Financing Activities Repayments Repayments The cash inflow or outflow associated with long-term loans for related parties where one party can exercise control or significant influence over another party, including affiliates and jointly-controlled companies, owners or officers and their immediate families, pension trusts, and so forth. Loan Proceeds Financing Activities Loan proceeds Loan proceeds The cash inflow or outflow associated with long-term loans for related parties where one party can exercise control or significant influence over another party, including affiliates and jointly-controlled companies, owners or officers and their immediate families, pension trusts, and so forth. Repayments of Short-term Debt, Total Short-term debt, repayments Repayments of Short-term Debt Short-term debt, additions Proceeds from Short-term Debt, Total Proceeds from Short-term Debt Equity in results of affiliates, joint ventures and other investments Deferred income taxes Research and development expenses Research and Development Expense, Total Research and Development Expense Selling, general and administrative expenses Selling, General and Administrative Expense, Total Selling, General and Administrative Expense Short-term debt, repayments Total other cumulative comprehensive income (deficit) Acquisitions Treasury Stock, Value, Acquired, Cost Method Related parties Accounts Receivable, Related Parties, Current Loans and advances to related parties The aggregate amount of receivables to be collected and advanced from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle). Loans and advances to related parties Recoverable taxes Income Taxes Receivable, Current Recoverable taxes Income Taxes Receivable, Noncurrent Suppliers Accounts Payable, Current, Total Accounts Payable, Current Loans from related parties Due to Related Parties, Current, Total Due to Related Parties, Current Provision for income taxes Accrued Income Taxes, Current Taxes payable and royalties Taxes payable and royalties Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, excise and other taxes. Also the royalties paid to landowners wether private or public. Taxes payable and royalties Employees postretirement benefits Pension and Other Postretirement Defined Benefit Plans, Current Liabilities Minimum mandatory dividends payable Dividends Payable, Current Employees postretirement benefits Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent, Total Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent Long-term debt Long-term Debt, Excluding Current Maturities, Total Long-term Debt, Excluding Current Maturities Loss Contingency, Accrual Carrying Value, Noncurrent Provisions for contingencies (Note 16 (b)) Undistributed retained earnings Retained Earnings, Appropriated Sales of ores and metals Revenue Mineral Sales, Total Revenue Mineral Sales Aluminum products Revenue from the sale of aluminum products. Aluminum products Revenues from logistic services Cargo and Freight Revenue Net operating revenues Net operating revenues Net operating revenues. Cost of ores and metals sold Mineral Extraction Processing and Marketing Costs, Total Mineral Extraction Processing and Marketing Costs Cost of aluminum products Costs incurred related to the aluminum production. Cost of aluminum products Cost of logistic services Costs incurred related to the logistic services. Cost of logistic services Total costs Direct Operating Costs Total costs and expenses Costs and Expenses Dividends received Equity Method Investment, Dividends or Distributions Accounts receivable Increase (Decrease) in Receivables, Total Increase (Decrease) in Receivables Suppliers Increase (Decrease) in Accounts Payable, Total Increase (Decrease) in Accounts Payable Short term investments Payments to Acquire Short-term Investments Acquisition of subsidiaries, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Treasury stock Payments for Repurchase of Equity, Total Payments for Repurchase of Equity Dividends And Interest Attributed To Stockholders Dividends and interest attributed to Company's stockholders Dividends and interest attributed to Company's stockholders The cash outflow for the return on capital to the shareholders. Transfer from/to unappropriated retained earnings Transfer from to unappropriated retained earnings Transfer from to unappropriated retained earnings. Preferred class A stock Preferred class A stock Interest on mandatorily convertible debt Preferred class A stock Interest on mandatorily convertible debt. Common stock Common stock Interest on mandatorily convertible debt Common stock Interest on mandatorily convertible debt. Preferred class A stock Preferred class A stock Dividends and interest attributed to stockholders equity Preferred class A stock Dividends and interest attributed to stockholders equity. Common stock Common stock Dividends and interest attributed to stockholders equity Common stock Dividends and interest attributed to stockholders equity. Total costs and expenses Revenues before taxes Entity Registrant Name Amendment Description Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Condensed Consolidated Balance Sheets [Abstract] Statement [Table] Statement [Line Items] Assets [Abstract] Assets, Current [Abstract] Receivables, Net, Current [Abstract] Accounts, Notes, Loans and Financing Receivable, Net, Noncurrent [Abstract] Liabilities and Stockholders' Equity [Abstract] Liabilities, Current [Abstract] Liabilities, Noncurrent [Abstract] Commitments and Contingencies Commitments and contingencies (Note 16) Stockholders' Equity Attributable to Parent [Abstract] Preferred Stock, Par or Stated Value Per Share Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Condensed Consolidated Statements of Income [Abstract] Statements of Income [Abstract] Sales Revenue, Net [Abstract] Costs and Expenses [Abstract] Nonoperating Income (Expense) [Abstract] Income taxes [Abstract] Earnings Per Share [Abstract] Basic and diluted earnings per share attributable to Company's stockholders Condensed Consolidated Statements of Cash Flows [Abstract] Statements of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Increase (Decrease) in Operating Assets [Abstract] Increase (Decrease) in Operating Liabilities [Abstract] Net Cash Provided by (Used in) Investing Activities [Abstract] Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from Issuance of Long-term Debt [Abstract] Repayments of Long-term Debt [Abstract] Effect of Exchange Rate on Cash and Cash Equivalents Interest Expense, Long-term Debt Income Taxes Paid Cash Paid for Capitalized Interest Condensed Consolidated Statements of Changes in Stockholders' Equity [Abstract] Statements of Changes in Stockholders' Equity [Abstract] End of the period, shares Treasury Stock, Shares, Acquired Statement, Equity Components [Axis] Equity Component [Domain] Total Company stockholders' equity Common stock Preferred class A stock Additional paid-in capital Treasury stock Retained Earnings Undistributed retained earnings Unappropriated retained earnings Total other cumulative comprehensive income (deficit) Unrealized gain (loss) - available-for-sale securities, net of tax Cash flow hedge Cumulative translation adjustments Surplus (deficit) accrued pension plan The Company and its operations [Abstract] Nature of Operations [Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Accounting pronouncements [Abstract] Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Income Tax Disclosure [Text Block] Cash and cash equivalents [Abstract] Cash and Cash Equivalents Disclosure [Text Block] Inventories [Abstract] Inventory Disclosure [Text Block] Investments in affiliated companies and joint ventures [Abstract] Equity Method Investments Disclosure [Text Block] Short-term debt [Abstract] Short-term Debt [Text Block] Long-term debt [Abstract] Long-term Debt [Text Block] Stockholders' equity [Abstract] Stockholders' Equity Note Disclosure [Text Block] Pension plans [Abstract] Pension and Other Postretirement Benefits Disclosure [Text Block] Long-term incentive compensation plan [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Commitments and Contingencies Disclosure [Text Block] Fair Value Disclosures [Text Block] Segment Reporting Disclosure [Text Block] Derivative financial instruments [Abstract] Derivative Instruments and Hedging Activities Disclosure [Text Block] Schedule of Subsequent Events [Text Block] Assets Current assets Accounts receivable Other assets Other Assets Noncurrent [Abstract] Loans and advances Liabilities and stockholders' equity Current liabilities Non-current liabilities Stockholders' equity Operating revenues, net of discounts, returns and allowances Operating costs and expenses Non-operating income (expenses) Income taxes Cash flows from operating activities: Adjustments to reconcile net income to cash from operations: Decrease (increase) in assets: Increase (decrease) in liabilities: Cash flows from investing activities: Loans and advances receivable Loans and advances receivable [Abstract] Related parties Related Parties Investing Activities [Abstract] Cash flows from financing activities: Loans Loans Financing Activities [Abstract] Related parties Related Parties Financing Activities [Abstract] Issuances of long-term debt Repayments of long-term debt Cash paid during the period for: Cash Paid During Period For [Abstract] Non-cash transactions Non Cash Transactions [Abstract] Interest on mandatorily convertible debt Interest on Mandatorily Convertible Debt [Abstract] Dividends and interest attributed to stockholders' equity Dividends and interest attributed to stockholders' equity [Abstract] Appropriation From To Undistributed Retained Earnings Appropriation from/to undistributed retained earnings Appropriation from to undistributed retained earnings. Mandatorily convertible notes - preferred stock Beginning of the period, shares Acquisitions, shares End of the period, shares Mandatorily convertible notes - common stock Preferred class A stock, par value Preferred class A stock, shares authorized Preferred class A stock, shares issued Common stock, par value Common stock, shares authorized Common stock, shares issued Treasury stock, preferred shares Number of preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. Treasury stock, preferred shares Treasury stock, common shares Number of common shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. Treasury stock, common shares Earnings per preferred share The amount of net income or loss for the period per each preferred share outstanding during the reporting period. Earnings per preferred share Earnings per common share The amount of net income or loss for the period per each common share outstanding during the reporting period. Earnings per common share Earnings per preferred share linked to convertible mandatorily notes Earnings Per Preferred Share Linked To Convertible Note The amount of net income or loss for the period per each preferred share outstanding linked to convertible note during the reporting period. Earnings per common share linked to convertible mandatorily notes Earnings Per Common Share Linked To Convertible Note The amount of net income or loss for the period per each common share outstanding linked to convertible note during the reporting period. Interest on long-term debt Income tax Interest capitalized Effect of exchange rate changes on cash and cash equivalents The Company and its operations Basis of consolidation [Abstract] Basis of consolidation Accounting pronouncements Major Acquisitions And Dispositions [Text Block] Major acquisitions and disposals Represent the business acquisitions and disposals made by the Company in the period. Income taxes Cash and cash equivalents Inventories Investments in affiliated companies and joint ventures Short-term debt Long-term debt Stockholders' equity Pension plans Long-term incentive compensation plan Commitments and contingencies [Abstract] Commitments and contingencies Fair value disclosure of financial assets and liabilities [Abstract] Fair value disclosure of financial assets and liabilities Segment and geographical information [Abstract] Segment and geographical information Derivative financial instruments Subsequent events [Abstract] Subsequent events Current Deferred Cost of ores and metals sold Cost of aluminum products Cost of logistic services Other Total costs Selling, general and administrative expenses Research and development expenses Other Acquisition of subsidiaries, net of cash acquired Short term investments Treasury stock Judicial deposits Mandatorily convertible notes - preferred shares Mandatorily convertible notes - common shares Effect of Exchange Rate on Cash and Cash Equivalents, Total Other Total number of shares End of the period, shares End of the period, shares Total comprehensive income (deficit) Comprehensive Income, Net of Tax, Including Portion Attributable to Noncontrolling Interest Total comprehensive income (deficit) attributable to Noncontrolling interests Comprehensive Income, Net of Tax, Attributable to Noncontrolling Interest Other Comprehensive Income, Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Noncontrolling Interest Cash flow hedge Cash flow hedge Cash flow hedge Cash flow hedge Cash flow hedge Other Comprehensive Income, Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent [Abstract] Comprehensive Income, Net of Tax, Attributable to Parent Total comprehensive income attributable to Company's stockholders Cash flow hedge, net Other Comprehensive Income, Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Gross balance as of the period/year end Other Comprehensive Income, Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Parent, Total Other Comprehensive Income, Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Parent Surplus (deficit) accrued pension plan, net Other Comprehensive Income, Defined Benefit Plans Adjustment, Net of Tax, Portion Attributable to Parent, Total Other Comprehensive Income, Defined Benefit Plans Adjustment, Net of Tax, Portion Attributable to Parent Tax (expense) benefit Other Comprehensive Income, Defined Benefit Plans, Tax, Portion Attributable to Parent Surplus (deficit) accrued pension plan Other Comprehensive Income, Defined Benefit Plans Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Gross balance as of the period/year end Other Comprehensive Income, Defined Benefit Plan's Adjustment, before Tax, Portion Attributable to Parent, Total Other Comprehensive Income, Defined Benefit Plan's Adjustment, before Tax, Portion Attributable to Parent Other Comprehensive Income, Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Unrealized gain (loss) - available-for-sale securities Unrealized gain (loss) - available-for-sale securities, net Other Comprehensive Income, Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent, Total Other Comprehensive Income, Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Other Comprehensive Income, Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent Gross balance as of the period/year end Gross balance as of the period/year end Non-current assets Assets, Noncurrent [Abstract] Intangible assets Finite-Lived Intangible Assets, Net, Total Finite-Lived Intangible Assets, Net Total Company stockholders' equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest End of the period Beginning of the period Total stockholders' equity Total Company stockholders' equity Temporary Equity, Redemption Value Redeemable noncontrolling interest Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Disposals and (acquisitions) of noncontrolling interests Disposals And Acquisitions Of Noncontrolling Interests Disposals and (acquisitions) of noncontrolling interests. Dividends and interest attributable to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Capitalization of stockholders advances Capitalization Of Stockholders Advances Capitalization of stockholders advances. Noncontrolling interests Consolidated Statements of Comprehensive Income (deficit) [Abstract] Statements of Comprehensive Income (deficit) [Abstract] Unrealized gains on derivative instruments Derivative Instruments and Hedges, Assets, Total Derivative Instruments and Hedges, Assets Debentures Titles issued at the time of Vale privatization, to ensure its then-existing stockholders would participate in possible future benefits that could be obtained from exploiting certain mineral resources. Debentures Recoverable taxes Increase (Decrease) in Income Taxes Receivable Balance Sheets [Abstract] Net income Total income tax The Company and its operations [Abstract] Accounting pronouncements [Abstract] Noncontrolling interests: Comprehensive Income, Net of Tax, Attributable to Noncontrolling Interest [Abstract] Comprehensive income (deficit) is comprised as follows: Comprehensive Income, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Company's stockholders: Comprehensive Income, Net of Tax, Attributable to Parent [Abstract] Net income attributable to Company's stockholders Gross balance as of the period/year end Tax (expense) benefit Noncontrolling interests Change in the period Stockholders' Equity, Period Increase (Decrease) Change in the period Short-term investments [Abstract] Short-term investments [Abstract] Short Term Investments [Text Block] Short-term investments Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, and more than 90 days) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments. Major acquisitions and disposals [Abstract] Major acquisitions and disposals. Total comprehensive income (deficit) attributable to Noncontrolling interests Surplus (deficit) accrued pension plan, net Cumulative Translation Adjustments Noncontrolling Interests Cumulative translation adjustments Cumulative translation adjustments Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity, net of tax, attributable to noncontrolling interest. Total income tax Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent, Total Cumulative translation adjustments Other Comprehensive Income, Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent Tax expense Tax (expense) benefit Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest Cumulative translation adjustments Cumulative translation adjustments Supplies Advances to suppliers Property, Plant and Equipment, Net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Total Property, plant and equipment, net Accounts Receivable, Gross, Noncurrent Unrelated parties Derivative Instruments and Hedges, Noncurrent Derivative Instruments and Hedges, Noncurrent, Total Unrealized gains on derivative instruments Derivative Instruments And Hedges, Liabilities Derivative Instruments and Hedges, Liabilities, Total Unrealized losses on derivative instruments Derivative Liabilities, Noncurrent Unrealized losses on derivative instruments Gain (Loss) on Sale of Other Assets Loss on sale of investments Gain (loss) on sale of assets Loss on sale of assets (Gain)/Loss on sale of investments Excise and Sales Taxes Taxes on revenues Taxes on revenues Taxes on revenues Proceeds from (Payments for) Long-term Loans for Related Parties Loan proceeds Loan proceeds Document Fiscal Year Focus Document And Entity Information. Document and Entity Information [Abstract] Document Fiscal Period Focus Income derived from investments in debt securities and on cash and cash equivalents and financial interest for assets. Financial Income Financial income The cost of borrowed funds accounted for as interest as well as interest expenses for liablities. Financial Expenses Financial expenses Proceeds From Repayments For Long Term Loans For Related Parties Repayments The cash outflow associated with long-term loans for related parties where one party can exercise control or significant influence over another party, including affiliates and jointly-controlled companies, owners or officers and their immediate families, pension trusts, and so forth. Basis of a presentation [Abstract] Basis of presentation. Basis of Presentation [Text Block] Basis of a presentation Basis of Presentation Text Block. Other expenses [Abstract] Operating expenditures that is not closely related to cost of sales, selling, general, administrative, and miscellaneous revenues. Other Expenses [Text Block] Other expenses Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Discontinued operations, net of tax Discontinued operations, net of tax Discontinued operations, net of tax Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Net income from continuing operations Interest Expense, Short-term Borrowings Interest Expense, Short-term Borrowings, Total Interest on short-term debt Other Comprehensive Income, Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent Tax (expense) benefit Tax (expense) benefit