Represents the amounts due from customers or clients along with the sum of amount currently receivable other than from customers and from related parties within one year of the balance sheet date that have been delivered or sold in the normal course of business. Gross receivables Accounts Receivable Trade Due from Parties and Other Receivable, Current Accrued commodity inventory Accrued Liability for Commodity Inventory, Current Carrying value as of the balance sheet date of obligations for commodity inventory costs incurred and payable. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Summary of the amortized cost and estimated fair value of short-term investments for both available-for-sale and trading securities Investment [Table Text Block] Accrued Self-Insurance Accrued Self Insurance [Policy Text Block] Disclosure of accounting policy for accrued self-insurance cost. Accrued Voyage Costs, Current Carrying value as of the balance sheet date of obligations for voyage costs incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Accrued voyage costs Represents the increase in total minimum payments over the initial term of the agreement. Additional Terminal Agreement Payment Increase in terminal agreement total minimum payments over the initial term of the agreement Investment [Table] All Other Countries [Member] All Other Represents information pertaining to other countries not disclosed elsewhere in the taxonomy. Investment Geographic Region [Axis] Argentine pesos Argentina, Pesos Represents the valuation allowance for 3rd party trade receivables, due from related parties and other receivables due to the entity within one year that is expected to be uncollectible. Allowance for doubtful accounts Allowance for Doubtful Accounts Trade Due from Parties and Other Receivable, Current Investment Geographic Region [Domain] Alternative Investments [Member] Alternative investments This category includes the alternative investments of plan assets. Amount Contributed as Additional Equity to Provide Additional Working Capital to Equity Method Investee Amount contributed as additional equity to provide additional working capital to equity method investee Represents amount contributed as additional equity to provide additional working capital to equity method investee. Amount of Receivable for Preliminary Working Capital Adjustments Under Deconsolidation Amount receivable for preliminary working capital adjustments Represents the amount receivable for preliminary working capital adjustments under deconsolidation. Argentina ARGENTINA Amendment Description Represents the fair value of debt securities which are expected to mature after one year and through three years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Due after one year through three years Available For Sale Securities, Debt Maturities after One Through Three Years, Fair Value Amendment Flag Represents the fair value of debt securities which are expected to mature after three years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available For Sale Securities, Debt Maturities after Three Years, Fair Value Due after three years Bakery Business [Member] Bakery business Represents the information pertaining to bakery business. Australia AUSTRALIA Bonds Payable [Member] Industrial Development Revenue Bonds, floating rates A debt obligation, in which the authorized issuer owes the holders a debt and is obliged to repay the principal and interest (the coupon) at a later date. Investment [Axis] Decrease in investment in and advances to affiliates Represents the removal of the investment in and advances to affiliates since this is no longer accounted for by the equity method but instead is now a consolidated entity. Business Acquisition Purchase Price Allocation Investment in and Advances to Affiliates Investment [Domain] The amount of acquisition cost of a business combination allocated to noncontrolling interest. Increase in non-controlling interest Business Acquisition Purchase Price Allocation Minority Interest Business Acquisition Purchase Price Allocation Working Capital Increase in working capital The amount of acquisition cost of a business combination allocated to working capital. Businesses Conducting Flour Maize and Feed Milling and Poultry Production and Processing [Member] Represents businesses conducting flour, maize and feed milling and poultry production and processing for which information is being disaggregated. Businesses conducting flour, maize and feed milling and poultry production and processing Butterball LLC [Member] Butterball, LLC Represents the information pertaining to Butterball, LLC. Capacity of Floating Power Generating Facility Leased Capacity of power facility leased (in megawatts) Represents the capacity of the floating power generating facilities leased. Capacity of Floating Power Generating Facility Newly Constructed Capacity of floating power generating facility newly constructed (in megawatts) Represents the capacity of the floating power generating facility which is newly constructed during the period. Capital lease obligations and other Represents the information pertaining to capital lease obligations and other long term debt. Capital Lease Obligations and Other [Member] Caribbean Central and South America [Member] Represents information pertaining to Caribbean, Central and South America. Caribbean, Central and South America Cheese Represents the derivative instrument whose primary underlying risk is tied to cheese. Cheese [Member] Investments Investment [Line Items] Committed Line of Credit [Member] Committed bank line A credit facility whereby terms and conditions are clearly defined by the lending institution and imposed upon the borrowing entity. Denominated in Canadian dollars Canada, Dollars Commodity mutual funds Represents the investment in commodity mutual funds. Commodity Mutual Funds [Member] Africa Africa [Member] Commodity Purchase Contract [Member] Net commodity purchase contracts Derivative instrument whose primary underlying risk is tied to the purchase of commodities. Current Fiscal Year End Date Net commodity sale contracts Derivative instrument whose primary underlying risk is tied to the sale of commodities. Commodity Sale Contract [Member] Commodity Trading and Milling [Member] Commodity Trading and Milling Represents the Commodity Trading and Milling segment of the entity. Commodity Trading and Milling segment Common Stock Dividend Portion Serving as Prepayment of Dividend for Fourth Succeeding Year Portion of dividend serving as prepayment for fourth succeeding year (in dollars per share) Represents the portion of dividend payment that serves as a prepayment of the dividend for the fourth succeeding year. Portion of dividend serving as prepayment for next succeeding year (in dollars per share) Represents the portion of dividend payment that serves as a prepayment of the dividend for the next succeeding year. Common Stock Dividend Portion Serving as Prepayment of Dividend for Next Succeeding Year Represents the portion of dividend payment that serves as a prepayment of the dividend for the second succeeding year. Common Stock Dividend Portion Serving as Prepayment of Dividend for Second Succeeding Year Portion of dividend serving as prepayment for second succeeding year (in dollars per share) Brazil BRAZIL Portion of dividend serving as prepayment for third succeeding year (in dollars per share) Represents the portion of dividend payment that serves as a prepayment of the dividend for the third succeeding year. Common Stock Dividend Portion Serving as Prepayment of Dividend for Third Succeeding Year Common Stock Dividends Historical Amount on Annual Basis Common stock dividend historical amount on annual basis (in dollars per share) Represents historical amount dividend on annual basis. Common stock dividend historical amount on a quarterly basis (in dollars per share) Represents historical amount dividend on quarterly basis. Common Stock Dividends Historical Amount on Quarterly Basis Conditional and Unconditional Commitments under Contract [Abstract] Conditional and Unconditional Commitments Consideration for Sale of Floating Power Generating Facilities Consideration for sale of floating power generating facilities Represents the sale consideration for sale of floating power generating facilities. Consolidation and Investments in Affiliates [Abstract] Principles of Consolidation and Investments in Affiliates Document Period End Date Construction of new dry bulk vessels Represents the contractual obligation to construct new dry bulk vessels over periods that initially exceed one year or the normal operating cycle, if longer. Construction of New Dry Bulk Vessels [Member] NORTH CAROLINA North Carolina Contract grower finishing agreements Represents the contractual obligation under contract grower finishing agreements over periods that initially exceed one year or the normal operating cycle, if longer. Contract Grower Finishing Agreements [Member] Dailys Premium Meats Division [Member] Daily's Represents information pertaining to the Daily's Premium Meats division. Democratic Republic of Congo CONGO, THE DEMOCRATIC REPUBLIC OF THE Debt and Commitments and Contingencies Disclosure [Text Block] Notes Payable, Long-Term Debt, Commitments and Contingencies The entire disclosure for debt and commitments and contingencies. Debt Instrument Covenant Adjusted Leverage Ratio Maximum Adjusted leverage ratio, maximum Represents the maximum adjusted leverage ratio per the terms of the debt covenants. Debt Instrument, Covenant Dividend Restriction Maximum Amount Maximum dividends per year Represents the maximum amount of dividends that may be paid per year per the terms of the debt covenants. Denominated in Euros Euro Member Countries, Euro Debt Instrument, Covenant Minimum Net Worth Requirement Base Amount Minimum net worth base requirement Represents the base amount that is used in the calculation of minimum tangible net worth requirement per the terms of the debt covenants. Notional amounts Derivative, Notional Amount Percentage of consolidated net income added to net worth base amount Represents the percentage of the consolidated net income that is used in the calculation of the minimum net worth requirement per the terms of the debt covenants. Debt Instrument, Covenant Percentage of Consolidated Net Income Added to Minimum Net Worth Requirement Nonmonetary notional amount Derivative, Nonmonetary Notional Amount Debt Instrument, Covenant, Sum of Subsidiary Indebtedness and Priority Indebtedness as Percentage of Net Worth, Maximum Sum of subsidiary indebtedness and priority indebtedness as a percentage of consolidated tangible net worth, maximum Represents the maximum percentage of the sum of subsidiary indebtedness and priority indebtedness as a percentage of net worth allowed per the terms of the debt covenants. Entity [Domain] Denominated in British pounds United Kingdom, Pounds Deferred Compensation Arrangement, Compensation Expense Deferred compensation plan expense (income) The compensation expense recognized during the period relating to the deferred compensation arrangement. Deferred Compensation Arrangement Employer Contribution as Percentage of Employees Reduced Compensation Employer contribution as percentage of the employees' reduced compensation Represents the employer's contribution as a percentage of employees' reduced compensation under the deferred compensation plan which allows certain employees to reduce their compensation in exchange for values in investments. Number of investments, which are taken as reference to measure the interest that may be acquired Represents the number of investments, which are taken as reference to measure the interest that may be acquired by employees in exchange for reduction in their compensation. Deferred Compensation Arrangement Investment Option Plan Number of Investments Referred to Measure Interest Colombia COLOMBIA Number of investments against the values of which, employee may be allowed to reduce their compensation Represents the number of investments against the values of which, employees may be allowed to reduce their compensation under deferred compensation plan. Deferred Compensation Arrangement Reduction in Employees Compensation in Exchange for Values in Investments Number Deferred Compensation Arrangement with Individual [Abstract] Deferred compensation plan Represents the deferred compensation plan investment income (loss) related to the mark-to-market of the investments treated as trading securities. Deferred Compensation Plan, Investment Income (Loss), Related to Trading Securities Investment income (loss) related to the mark-to-market of investments treated as trading securities Deferred Grants Amount of deferred grants as of the balance sheet date. Deferred grants represent economic development funds contributed by government entities, usage of which is limited for certain activities. Deferred Grants Deferred Grants Deferred Grants [Abstract] Disclosure of accounting policy for deferred grants. Deferred Grants [Policy Text Block] Deferred Grants Deferred revenue from affiliates Amount of deferred revenue from affiliates as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Deferred Revenue from Affiliates, Current Deferred Tax Assets, Deferred Income, Foreign Earnings The tax effect as of the balance sheet date of the difference in the carrying amount for tax and financial accounting purposes of non-US operations subject to current US federal income tax that will reverse in future periods as the related assets are realized and liabilities are settled. Deferred earnings of foreign subsidiaries Deferred Tax Assets, Net Operating and Capital Loss Carryforwards The tax benefit as of the balance sheet date from the allowable deduction of operating and capital losses against future taxable income realized within the applicable carryforward periods. Net operating and capital loss carry-forwards The amount as of the balance sheet date of the estimated future tax effects attributable to differences between the methods used to account for farming transactions for tax purposes and under generally accepted accounting principles, which will increase future taxable income when such differences reverses. Cash basis farming adjustment Deferred Tax Liabilities, Cash Basis Farming Adjustment LIFO The tax effect as of the balance sheet date of the difference in the cost of LIFO inventory determined under tax rules from that determined for financial reporting purposes that will be recognized in future periods when the inventory is sold. Deferred Tax Liabilities, Inventory Costs Defined Benefit Plan, Amortization and Other Costs The amount of gains or losses and any other periodic costs associated with defined benefit plans that are not separately disclosed, recognized in net periodic benefit cost. Amortization and other Dominican Republic DOMINICAN REPUBLIC Defined Benefit Plan, Eligibility for Participation Requisite Age of Employees Requisite age of employees to be eligible for participation The minimum age of individual required in order to be eligible for participation under the defined benefit plan. Requisite service period upon attaining age of 21 to be eligible for participation The minimum period that the individual is required to perform services in order to be eligible for participation under the defined benefit plan. Defined Benefit Plan, Eligibility for Participation Requisite Service Period after Attaining Specified Age Ecuador ECUADOR Defined Benefit Plan, Recognized Gain (Loss) Due to Termination after Tax The amount of net gain (loss) recognized in net periodic benefit cost, net of tax, as a result of an event that terminates the service of the employee during the reporting period. Agreement termination gain, net of tax Defined Benefit Plan, Recognized Gain (Loss) Due to Termination before Tax Agreement termination gain The amount of net gain (loss) recognized in net periodic benefit cost, before tax, as a result of an event that terminates the service of the employee during the reporting period. Target Allocations (as a percent) Target allocation percentage of investments to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position. Defined Benefit Plan, Target Allocation Percentage of Assets Represents the number of defined contribution plans covering Daily's employees. Defined Contribution Plan, Covering Daily Employees Number of Plans Number of defined contribution plans covering Daily's employees Defined Contribution Plan, Covering Domestic Salaried and Clerical Employees [Member] Defined contribution plan covering domestic, salaried and clerical employees Represents the defined contribution plan covering domestic, salaried and clerical employees. Defined Contribution Plan, Covering Hourly Non Union Daily Employees [Member] Defined contribution plan covering hourly, non union and Daily's employees Represents the defined contribution plan covering hourly, non union employees and Daily's employees. Defined Contribution Plan, Vesting Percentage after One Year of Service Vesting percentage after one year of service Represents the percentage of vesting after first year of service. Defined Contribution Plan, Vesting Percentage with Each Additional Completed Year of Service after One Year Additional vesting percentage with each additional complete year of service Represents the additional vesting percentage with each additional completed year of service, after the first year of service. Derivative Credit Risk Number of Counterparties Number of counterparties Represents the number of counterparties with respect to whom the entity has counterparty credit risk related to derivative contracts. Derivative Number of Instruments Terminated The number of derivatives terminated by the entity. Number of derivative agreements terminated Derivative Termination Dates [Axis] Information by different termination dates of derivative contract. Derivative Termination Dates [Domain] Details pertaining to different termination dates of derivative contract. Derivatives and Fair Value of Financial Instruments Divestiture of Portion of Dailys Premium Meats [Member] Represents information pertaining to the sale of a portion of Daily's Premium Meats, a processed meats division of the Pork segment. Divestiture of a 50% interest in Daily's Document and Entity Information Domestic Equity Securities [Member] Domestic equity securities Represents the domestic equity securities. Domestic equity securities This category includes investments in domestic large-cap companies. Domestic Large Cap Equity Securities [Member] Emerging Market Debt [Member] Emerging markets debt mutual fund Represents emerging markets debt, for which information is being disaggregated. Emerging Markets Equity [Member] Emerging markets - equity Represents emerging markets equity, for which information is being disaggregated. Emerging Markets Trading Debt Mutual Funds [Member] Emerging markets trading debt mutual fund Represents emerging markets trading debt mutual funds that are bought and held principally for the purpose of selling in the near term (thus held for only a short period of time). Emerging Markets Trading Debt Securities [Member] Emerging markets trading debt securities Represents emerging markets trading debt securities that are bought and held principally for the purpose of selling in the near term (thus held for only a short period of time). Equipment purchases and facility improvements Represents the contractual obligation to procure equipment and improve facilities over periods that initially exceed one year or the normal operating cycle, if longer. Equipment Purchases and Facility Improvements [Member] Equity Method Investment, Additional Investment Additional investment or capital contribution Represents an additional amount of investment made in equity method investee during the period. Represents the percentage of economic ownership in an equity method investee, which is higher than the percentage of voting interest due to warrants held by the entity. Equity Method Investment, Economic Interest Economic interest (as a percent) Gambia GAMBIA The amount of the equity method investee's intangible assets for goodwill. Investee's intangible assets for goodwill Equity Method Investment, Summarized Financial Information, Goodwill Equity Method Investment, Summarized Financial Information, Intangible Assets Trade Name The amount of the equity method investee's intangible assets for trade name. Investee's intangible assets for trade name Additional equity interest that can be acquired upon exercise of warrants (as a percent) Represents the additional equity interest in the equity method investee which can be acquired by the entity upon exercise of warrants. Equity Method Investment Warrants, Additional Equity Interest that Can be Acquired Entity Well-known Seasoned Issuer Mutual funds-equities Represents the investment in equity mutual funds. Equity Mutual Funds [Member] Equity mutual fund Entity Voluntary Filers Represents the escrow earnings for the period. Escrow Earnings Escrow earnings Entity Current Reporting Status Available-for-sale securities Available-for-sale Securities [Member] Estimated Future Gain (Loss) on Sale of Property Plant Equipment Estimated future gain on sale of assets Represents the estimated future amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Entity Filer Category Transfers that occurred into or out of level 1 Represents the transfers into or out of level 1 fair value hierarchy that have taken place during the period. Fair Value Measurement Transfers into or out of Level 1 Entity Public Float Represents the transfers into or out of level 2 fair value hierarchy that have taken place during the period. Fair Value Measurement Transfers into or out of Level 2 Transfers that occurred into or out of level 2 Entity Registrant Name Fair Value Measurement Transfers into or out of Level 3 Transfers that occurred into or out of level 3 Represents the transfers into or out of level 3 fair value hierarchy that have taken place during the period. Entity Central Index Key Proportionate share of impairment of fixed assets charge and accrued severance charges The Company's share of impairment of fixed assets charges and accrued severance charges. Fixed Assets Impairment and Accrued Severance Charge Flour Milling Business [Member] Flour milling business Represents information pertaining to the flour milling business. Flour production business Represents information pertaining to the flour production business. Flour Production Business [Member] Foreign receivables, excluding receivables due from affiliates Foreign Accounts Receivable excluding Receivables from Affiliates Amounts due from foreign customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. These exclude amounts due from affiliates. Entity Common Stock, Shares Outstanding Foreign equity securities Represents the foreign equity securities. International/Foreign equity securities Foreign Equity Securities [Member] International fixed income mutual funds Represents the investment in foreign fixed income mutual funds. Foreign Fixed Income Mutual Funds [Member] Haiti HAITI Foreign [Member] Foreign Country Location outside its country of domicile. Foreign Subsidiaries [Member] Represents details pertaining to the foreign subsidiaries of the entity. Foreign subsidiaries Foreign subsidiary obligation payable in U.S. dollars, 5.34%, due 2014 through 2021 Represents the foreign subsidiary obligation with an interest rate of 5.34 percent due 2014 through 2021. Foreign Subsidiary Obligation at 5.34 Percent Due 2014 through 2021 [Member] Fuel supply contract Represents the contractual obligation to supply fuel over periods that initially exceed one year or the normal operating cycle, if longer. Fuel Supply Contract [Member] Gain or Loss on Sale of Stock in Subsidiary Net of Tax Gain on sale of controlling interest in subsidiary net of tax Amount of gain (loss) net of tax on sale or disposal of equity in securities of subsidiaries. Gain or Loss on Sale of Stock in Subsidiary Per Share Gain on sale of controlling interest in subsidiary (in dollars per share) Amount of gain (loss) per share on sale or disposal of equity in securities of subsidiaries. Goodwill and Indefinite Lived Intangible Assets by Segment [Line Items] Goodwill and other intangible assets, net Grain and feed ingredients Represents the contractual obligation to procure grain and feed ingredients over periods that initially exceed one year or the normal operating cycle, if longer. Grain and Feed Ingredients [Member] Grain [Member] Grain Represents the derivative instrument whose primary underlying risk is tied to grain. Grain purchase contracts for resale Represents the contractual obligation to procure grain purchase contracts for resale over periods that initially exceed one year or the normal operating cycle, if longer. Grain Purchase Contracts for Resale [Member] Grain Trading Business [Member] Agricultural commodity trading businesses Represents the information pertaining to grain trading businesses. Represents high yield debt securities that are bought and held principally for the purpose of selling in the near term (thus held for only a short period of time). High yield trading debt securities High Yield Trading, Debt Securities [Member] High yield debt securities Represents the contractual obligation to procure hog over periods that initially exceed one year or the normal operating cycle, if longer. Hog Procurement Contracts [Member] Hog procurement contracts Hogs [Member] Hogs Represents the derivative instrument whose primary underlying risk is tied to hogs. Represents the net of tax impact of assets impairment on the net earnings attributable to the parent entity. Impact of Impairment on Net Earnings Total impact on net earnings attributable to Seaboard, net of taxes Document Fiscal Year Focus Income (Loss) from Continuing Operations before Income Taxes Total earnings excluding non-controlling interest The portion of earnings or loss from continuing operations before income taxes excluding non-controlling interest. Document Fiscal Period Focus Income Tax Examination Refund Claim Represents the amount of refund claims for prior years not previously treated as tax-exempt included in income tax benefit recognized. Amount of refund claims for prior years not previously treated as tax-exempt included in income tax benefit recognized Income Tax Reconciliation [Abstract] Adjustments to tax expense attributable to: Income Tax Reconciliation, Change in Pension Deferred Tax The portion of difference between the total income tax expense or benefit as reported in the Income Statement for the year/accounting period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to change in pension deferred tax. Change in pension deferred tax Income Taxes Federal Blenders One Time Tax Credit Recognized as Revenue One-time Federal blender's credits recognized as revenue Represents the one-time Federal blender's credits recognized as revenue. Kenya KENYA Entity by Location [Axis] One-time tax benefit on enactment of law Income Taxes One Time Tax Benefit on Enactment of Law Represents amount of the one-time tax benefit on enactment of law. Location [Domain] Increase Book Value of Investment in Affiliates Subsidiaries to Determine Fair Value Exceeded amount of book value of investment to determine fair value Represents the increase in book value of investment in affiliates subsidiaries to determine fair value. Components of and changes in accumulated other comprehensive loss, net of tax Increase (Decrease) Accumulated Other Comprehensive Income (Loss) Net of Tax [Roll Forward] Increase (Decrease) in Current Liabilities Exclusive of Debt, Current Current liabilities, exclusive of debt The increase (decrease) during the reporting period in the aggregate amount of liabilities resulting from activities that generate operating income. This element specifically excludes the net change in debt. Represents the amount of increase (decrease) in investments in affiliates, subsidiaries, associates and joint ventures. Increase (Decrease) in Investments in Affiliates Subsidiaries Associates and Joint Ventures Increase in investments in and advances to affiliates Represents the increase (decrease) in amounts due from affiliates of the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle). Increase in long-term notes receivable from affiliates Increase (Decrease) in Notes Receivable from Affiliates Noncurrent Indefinite Intangible Assets Decrease from Deconsolidation Decrease in other intangible assets, net (not subject to amortization) Represents the amount of the reduction or elimination during the period of indefinite intangible assets resulting from the parent's loss of control and deconsolidation of the entity. Legal Entity [Axis] Carrying amount-trade names and registered trademarks Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit and rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit. Indefinite Lived Trade Names and Trademarks Document Type Industrial Development Revenue Bonds [Member] IDRBs Represents information pertaining to Industrial Development Revenue Bonds. Initial Lease Term Initial lease term Represents the initial term of lease. Interest income from affiliates Represents the interest income from affiliates earned by the entity during the reporting period. Interest Income from Affiliates Capitalized interest The amount of interest capitalized for the period related to property, plant and equipment. Interest Paid Capitalized Related to Property, Plant and Equipment Interest Rate Swap One [Member] Eight-year interest rate exchange agreements Represents information pertaining to eight-year interest rate exchange agreements. Fresh pork and materials Carrying amount of fresh pork and materials, net of valuation reserve and adjustment and before LIFO adjustment, as of the balance sheet date. Inventory Fresh Pork and Materials before LIFO Adjustment, Net of Reserve Carrying amount, net of valuation reserve and adjustment, as of the balance sheet date of grains and oilseeds. Inventory, Grains and Oilseeds, Net of Reserves Grains, oilseeds and other commodities Represents the increase (decrease) in net earnings per share due to the effect of LIFO inventory method. LIFO method increase (decrease) in earnings per share (in dollars per share) Inventory, LIFO Reserve, Effect on Income, Net, Per Share Inventory Live Hogs and Materials before LIFO Adjustment, Net of Reserve Live hogs and materials Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date, of live hogs and materials, before LIFO adjustment. Lesotho LESOTHO Inventory, Sugar Produced and in Process, Net of Reserves Sugar produced and in process Carrying amount, net of valuation reserve and adjustment, as of the balance sheet date of sugar produced and in process. Inventory write-down (in dollars per share) Inventory Write Down, Per Share The per share amount of the write-down to the carrying amount of inventory, which was attributable to customer contract performance. Inventory Write Downs Tax Benefit Tax benefit recognized on inventory write-downs Represents the amount of income tax benefit recognized on write-downs of inventory. Interest income Investment Income Interest including Accretion or Amortization of Discount or Premium Interest income amount of which the earnings reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Interest income includes amortization of premiums and accretion of discounts to maturity. Investment in equity and long-term advances Represents the investment in equity and long-term advances. Investments in Equity and Long Term Advances Inventories at lower of LIFO cost or market, Gross The amount of LIFO (last in first out) inventory, net of valuation reserve and adjustment, before LIFO adjustment. LIFO Inventory before LIFO Adjustment, Net of Reserve The original principal amount of the loan provided to equity method investee. Loan provided to affiliate Loan Provided to Equity Method Investee, Original Principal Amount Represents the proceeds from loan fee on loan made to equity method investee. Loan to Equity Method Investee, Proceeds from Loan Fee Cash fee received as consideration for unsecured subordinated loan provided Represents the aggregate stated interest rate on the loan receivable. Loans Receivable, Interest Rate Interest rate on loan provided (as a percent) Loans Receivable, Interest Rate, Payable in Cash Percentage of interest payable in cash Represents the stated interest rate on the loan receivable that is payable in cash. Loans Receivable, Interest Rate, Payable in Kind Percentage of pay-in-kind interest Represents the stated interest rate on the loan receivable that is payable in kind. U.S. dollars United States of America, Dollars Cost of dry bulk vessels to be built Represents the amount of agreement entered into by the entity, for building dry bulk vessels. Long -term Commitment Amount Long Term Debt and Capital Lease Obligations by Maturity [Abstract] Maturities of long-term debt Long-term debt Long Term Debt and Other Represents the current and noncurrent portion of the aggregate of long-term debt instruments including credit facilities, senior notes, capital lease obligations and other debt. Lower of FIFO Cost or Market [Abstract] At lower of FIFO cost or market: Lower of LIFO Cost or Market [Abstract] At lower of LIFO cost or market: Marine [Member] Marine Represents the Marine segment of the entity. Mexico ham boning and processing plant Mexico Ham Boning and Processing Plant [Member] Operations of the ham boning and processing plan located in Mexico. Milk powder Represents the derivative instrument whose primary underlying risk is tied to milk powder. Milk Powder [Member] Miscellaneous, net Miscellaneous Net [Member] Caption reflecting the net miscellaneous income (expense) of items not included elsewhere in the income statement. Money Market Funds Held in Trading Accounts [Member] Represents the money market funds held in trading accounts that are bought and held principally for the purpose of selling in the near term (thus held for only a short period of time). Money market funds held in trading accounts Multiemployer Plan Percentage of Contributions Maximum Maximum percentage of total contributions to multi-employer pension fund Represents the maximum percentage of total contributions to multi-employer pension fund. Net Fair Value of Derivative Assets Net of Derivative Liabilities and Net of Margin Deposit Fair value as of the balance sheet date of derivative assets and derivative liabilities, presented on a net basis, and also net of related margin accounts. Derivative assets and liabilities, net basis Noncash Transactions Resulting from Deconsolidation [Abstract] Non-cash transactions resulting from deconsolidation Noncontrolling Interest Increase from Business Combination Decrease from Deconsolidation Addition of (Reduction to) noncontrolling interests Represents the increase in noncontrolling interest balance because of business combination and the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity or the purchase of the non-controlling interest. Represents the maximum repayment term of notes payable to banks. Repayment term Notes Payable to Bank Maximum Repayment Term Number of Affiliates Number of affiliates Represents information pertaining to number of affiliates. Number of Bacon Processing Plants Number of bacon processing plants Represents information pertaining to the number of bacon processing plants. South African Rand South Africa, Rand Represents the number of businesses. Number of Business Number of businesses Number of consolidated subsidiaries using local currency as their functional currency Represents the number of consolidated subsidiaries using local currency as their functional currency. Number of Consolidated Subsidiaries Using Local Currency as Functional Currency Number of Deferred Compensation Plans Number of deferred compensation plans Represents the number of deferred compensation plans. Number of Defined Benefit Plans Represents the number of defined benefit plans. Number of defined benefit plans Nigeria NIGERIA All Currencies [Domain] Represents entity pertaining to number of dry bulk vessels to be built. Number of Dry Bulk Vessels to be Built Number of dry bulk vessels to be built Number of Five Year Renewal Options Number of five-year renewal options Represents the number of five-year renewal options. Number of floating power generating facilities sold Represents the sale consideration of the floating power generating facilities sold during the period. Number of Floating Power Generating Facilities Sold Number of Non Controlled Non Consolidated Affiliates Using Local Currency as Functional Currency Number of non-controlled, non-consolidated affiliates using local currency as their functional currency Represents number of non-controlled, non-consolidated affiliates using local currency as their functional currency. Number of Processing Plants Number of processing units Represents information pertaining to the number of processing plants. Number of Search Warrants Executed Authorizing Seizure of Certain Records Number of search warrants executed authorizing the seizure of certain records from Seaboard's offices in Merriam, Kansas and at the Seaboard Foods employment office and the human resources department in Guymon, Oklahoma. Represents the number of search warrants executed authorizing the seizure of certain records. Number of Suppliers Number of suppliers Represents number of suppliers. Number of Transactions for Acquiring Interest in Subsidiaries Number of transactions for acquiring interest in subsidiaries Represents the number of transactions for acquiring interest in subsidiaries. Net operating loss carry-forwards and tax credit carry-forwards Operating Loss and Tax Credit Carryforwards [Line Items] Operating Loss and Tax Credit Carryforwards [Table] Schedule reflecting pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards and tax credit carryforwards. Peru PERU Operations of Seaboard Corporation and its Subsidiaries Operations and Subsidiaries [Abstract] Trade Accounts Receivable, Gross, Current Other Comprehensive Income Future Income (Loss) Net of Tax Comprehensive loss, net of related taxes The change in other comprehensive income to be recognized in a subsequent reporting period, net of tax. Other Finite Lived Intangible Assets Accumulated Amortization Accumulated amortization other intangible assets Represents the accumulated amount of amortization of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit, excluding financial assets and goodwill, lacking physical substance with a finite life. Other Investment Income (Expense), Net Other investment income (loss), net Other investment income, net Represents the other investment income expense, net earned by the entity during the reporting period. Other Noncash Income (Expense) and Other Items Other, net Other income (expense) included in net income that result in no cash inflows or outflows in the period, plus other items, such as affiliate dividends that result in cash inflows or outflows in the period but are not included in Net Income. These items are necessary to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed. Other Represents investment in plan assets not otherwise specified in the taxonomy. Other Plan Assets [Member] Other purchase commitments Represents the contractual obligation to procure other items over periods that initially exceed one year or the normal operating cycle, if longer. Other Purchase Commitments [Member] Other Trading Investments [Member] Other trading investments Represents information pertaining to other trading investments. PS International [Member] PS International Represents the information pertaining to PS International. Paid in Kind Interest Income Pay-in-kind interest and accretion on notes receivable from affiliates Interest received other than in cash for example on a note receivable from an affiliate. As a noncash item, it is subtracted from net income when calculating cash provided by or used in operations using the indirect method. Non-cash, pay-in-kind interest income and accretion of discount recognized on a note receivable from an affiliate Palm Oil [Member] Palm oil Represents the derivative instrument whose primary underlying risk is tied to palm oil. Advance payment on capital lease Advance capital lease payment to begin operations in 2012 of a flour mill in Ghana Payment of Advances on Capital Lease The cash outflow associated with payment of advances on capital lease of the reporting entity during the reporting period. Payments for Derivative Instrument Operating Activities Payment to terminate derivative agreement The cash outflow for derivative instruments during the period, which are classified as operating activities, excluding those designated as hedging instruments. Payments for Issuance of Long Term Note Receivable to Affiliate The cash outflow associated with issuance of long-term note receivable to affiliates of the reporting entity during the reporting period. Long-term notes receivable issued to affiliates Payments for (Proceeds from) Issuance of Short Term Note Receivable to Affiliate The net cash inflow or outflow associated with issuance of short-term note receivable to affiliates of the reporting entity during the reporting period. Short-term note receivable issued to affiliate, net Payments under Contractual Obligations Amount paid under the agreement Represents the amount of cash paid under the agreement. Percentage of ownership before equity method accounting Represents the percentage of ownership held by the entity. Percentage of Ownership Interest Percentage of ownership interest held by Seaboard Flour LLC and SFC Preferred LLC (Parent Companies) Represents the percentage of ownership interest in the entity held by the parent company. Percentage of Ownership Interest by Parent Accounts payable Accounts Payable, Current Percentage of Ownership Interest Sold Percentage of ownership interest sold Represents the percentage of ownership interest sold by the entity. Performance Incentive Payments under Contractual Obligations Incentive payments for achieving certain performance standards Represents the incentive payments to be made for achieving certain performance standards. Period after which Loan Provided to Affiliates can be Converted in to Equity Period after which loan provided to affiliates can be converted into equity Represents the period after which loan provided to affiliates can be converted into equity. Period after which loan provided to affiliates can be repaid Represents the period after which loan provided to affiliates can be repaid. Period after which Loan Provided to Affiliates can be Repaid Period of low income housing tax credits on investments in various limited partnerships Represents the period of low income housing tax credits on investments in various limited partnerships. Period of Low Income Housing Tax Credits on Investments in Limited Partnerships Pork Segment [Member] Pork segment Represents the Pork segment of the entity. Pork Power Represents the Power segment of the entity. Power [Member] Proceeds from Sale of Power Generating Facilities Proceeds from the sale of power generating facility assets The cash inflow from the sale of a property, plant, and equipment asset that was used in the normal conduct of business to generate power for sale. Proceeds from Sale of Power Generating Facilities Inventory Items Amount received by the entity on sale of floating power generating facilities from various inventory items The cash inflow from the sale of a various inventory items associated with floating power generating facilities. Amount received by the entity on sale of floating power generating facilities from previously escrowed balance The cash inflow that was previously escrowed from the sale of a property, plant, and equipment asset that was used in the normal conduct of business to generate power for sale. Proceeds from Sale of Power Generating Facilities Previously Escrowed Accounts Receivable Accounts Receivable [Member] Processing Plants in Salt Lake City Utah and Missoula Montana [Member] Processing plants in Salt Lake City, Utah and Missoula, Montana Represents information pertaining to processing plants in Salt Lake City, Utah and Missoula, Montana. Net book value of power generating facilities and certain inventory items Property Plant and Equipment and Inventory, Net Represents the sum total of the net value of property, plant and equipment and inventory. Investments in limited partnerships Proportional Amortization Method Investment Amount of proportional amortization method investment. Purchase Commitment Including Long Term Commitment [Member] Purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. Total firm purchase commitments Represents the investment in real estate mutual funds. Real Estate Mutual Funds [Member] Real estate mutual fund Reclassification from Long Term Debt to Current Maturities of Long Term Debt Amount reclassified from long-term debt to current maturities of long-term debt Represents the amount reclassified from long-term debt to current maturities of long-term debt. Reconciliation of Capital Expenditure from Segment to Consolidated [Text Block] Summary of specific financial information related to capital expenditures Tabular disclosure of all significant reconciling items in the reconciliation of total capital expenditures from reportable segments to the entity's consolidated totals. Reconciliation of Depreciation and Amortization from Segment to Consolidated [Text Block] Summary of specific financial information related to depreciation and amortization Tabular disclosure of all significant reconciling items in the reconciliation of total depreciation and amortization from reportable segments to the entity's consolidated totals. Schedule of Amounts Paid for Interest and Income Taxes [Table Text Block] Schedule of amounts paid for interest and income taxes Tabular disclosure of amount paid for interest and income taxes. Schedule of Debt Instruments [Table] A table or schedule providing information pertaining to short-term and long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. Schedule of Plans' assets measured at estimated fair value Tabular disclosure of the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. Schedule of Fair Value of Plan Assets [Table Text Block] Schedule of Finite and Indefinite Lived Intangible Assets [Table Text Block] Schedule of other intangible assets Tabular disclosure of the carrying value of finite and indefinite-lived intangible assets, excluding goodwill, in total and by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of the company. Schedule of Goodwill and Finite Lived Intangible Assets [Table] Schedule of assets, including goodwill, lacking physical substance with a finite life. Tabular disclosure of income or loss from equity method investments by segment. Schedule of Income (Loss) from Equity Method Investments by Segment [Text Block] Summary of specific financial information related to income (loss) from affiliates Summary of specific financial information related to investments in and advances to affiliates Tabular disclosure of investments in and advances to affiliates by segment. Schedule of Investment in and Advances to Affiliates by Segment [Text Block] Geographic summary of net sales based on the location of product delivery Tabular disclosure of information concerning the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. Schedule of Revenues from External Customers by Geographical Areas [Table Text Block] Seaboard Marine Ltd [Member] Seaboard Marine Represent information pertaining to Seaboard Marine, Ltd. Eastern Mediterranean A fifth specified group of foreign countries about which segment information is provided by the entity. Segment Geographical Groups of Countries Group Five [Member] Segment Geographical Groups of Countries Group Four [Member] Pacific Basin and Far East A fourth specified group of foreign countries about which segment information is provided by the entity. A sixth specified group of foreign countries about which segment information is provided by the entity. Segment Geographical Groups of Countries Group Six [Member] Europe Canada/Mexico A third specified group of foreign countries about which segment information is provided by the entity. Segment Geographical Groups of Countries Group Three [Member] Segment Reporting Allocation of Costs to Individual Segments Allocation to individual segments of general corporate management oversight costs Represents the cost allocation made to individual segments of the entity. Short Term Investments at Amortized cost Total available-for-sale and trading short term investments, amortized cost This item represents a parenthetical disclosure of the amortized cost of securities classified as short-term investments. Soybean Meal [Member] Soybean meal Represents the derivative instrument whose primary underlying risk is tied to soybean meal. Soybean Oil [Member] Soybean oil Represents the derivative instrument whose primary underlying risk is tied to soybean oil. Stock Repurchase Program Additional Authorized Amount Additional authorized repurchase amount under the November 2009 share repurchase program Represents the additional amount of a stock repurchase plan authorized by the entity's board of directors. Stock Repurchase Program Increase, amount Increase in the amount of the share repurchase program Represents increase in the amount of stock repurchase plan authorized by the entity's board of directors. Stock Repurchase Program Remaining from Original Authorized Repurchase Amount Amount remaining of the original authorization of a stock repurchase plan authorized by an entity's Board of Directors. Subsequent authorization(s) increasing the original authorized amount are excluded from this amount remaining. Remaining authorized repurchase amount under November 2009 share repurchase program Subsidiaries and Affiliates Reporting Period Lag Time lag for reporting financial information of certain foreign subsidiaries and affiliates Represents the time lag for reporting financial information of subsidiaries and affiliates. Sugar Contract [Member] Represents the derivative instrument whose primary underlying risk is tied to sugar. Sugar Sugar [Member] Sugar Represents the Sugar segment of the entity. Sugar segment Sugar Related Business [Member] Sugar related businesses Represents the information pertaining to sugar related businesses. Supplemental Noncash Transactions [Policy Text Block] Supplemental Non-Cash Transactions Disclosure of accounting policy for supplemental non-cash transactions. Tangible Assets Decrease from Deconsolidation Decrease in fixed assets Represents the amount of the reduction or elimination during the period of tangible assets resulting from the parent's loss of control and deconsolidation of the entity. Term of Derivative Contract Term of derivative contract Represents the term of the derivative contract entered into by the entity. Term of Loan Receivable Maturity period of unsecured subordinated loan provided Represents the period after which the loan receivable of the entity will mature. US UNITED STATES Terminal Agreement Renewal Option Period Renewal option period Represents the renewal option period expressed in years under the Company's terminal agreement. Terminal Operator in Jamaica [Member] Cargo terminal operator in Jamaica Represents information pertaining to a terminal operator in Jamaica. Termination Date in Early 2015 [Member] Termination date in early 2015 Represents information pertaining to derivative contract with termination date in early 2015. Termination Date in Second Half of 2014 [Member] Termination date in the second half of 2014 Represents information pertaining to derivative contract with termination date in the second half of 2014. Represents information pertaining to treasury inflation indexed bonds. Treasury Inflation Indexed Bonds [Member] Treasury inflation indexed bonds Triumph Foods LLC [Member] Triumph Represents information pertaining to Triumph Foods LLC. Turkey Represents the Turkey segment of the entity. Turkey [Member] A credit facility with no restrictions placed upon the lending institution regarding the amount of funds to be lent. Uncommitted Line of Credit [Member] Uncommitted bank lines Unrecorded Unconditional Purchase Obligation, Long Term Commitments Contract Period Contract period Represents period of long-term commitments contracts. Valuation Allowances and Reserves, Deductions and Recoveries and Currency Translation Net deductions/ Other Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. Along with total of recoveries of amounts due the Entity that had previously been written off as uncollectible using allowances (the valuation accounts that are netted against the cost of an asset to value it at its carrying value) and total of reestablishments of reserves (liabilities established to represent expected future costs) that had previously been utilized. Along with total currency translation adjustment. Vessel, time and voyage-charters Represents the contractual obligation under vessel, time and voyage-charter arrangements over periods that vary from a few months to one year or the normal operating cycle, if longer. Vessel Time and Voyage Charter Arrangements [Member] Whey Powder [Member] Dry whey powder Represents the derivative instrument whose primary underlying risk is tied to whey powder. Working Capital Decrease from Deconsolidation Decrease in net working capital Represents the amount of the reduction or elimination during the period of working capital resulting from the parent's loss of control and deconsolidation of the entity. South Africa SOUTH AFRICA Zambia ZAMBIA Accrued liability Accrued Liabilities [Member] Income taxes payable Accrued Income Taxes Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Cumulative foreign currency translation adjustment, net of related taxes Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Unrealized Gain on Investments: Accumulated Net Unrealized Investment Gain (Loss) [Member] Unrecognized pension cost related to employees at certain subsidiaries Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss) [Member] Unrecognized Pension Cost: Accumulated Defined Benefit Plans Adjustment [Member] Unrealized Gain (Loss) on Cash Flow Hedges: Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Components of accumulated other comprehensive loss, net of related taxes Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Stockholders' Equity and Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Table] Cumulative Foreign Currency Translation Adjustment: Accumulated Translation Adjustment [Member] Adjustments to reconcile net earnings to cash from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] All Other Other Segments [Member] Allowance for Doubtful Accounts: Allowance for Doubtful Accounts [Member] Amortization expense of other amortizable intangible assets Amortization of Intangible Assets Accretion Expense Asset Retirement Obligation, Accretion Expense Asset Retirement Obligation Asset Retirement Obligation [Abstract] Proportionate share of impairment charges of fixed assets recognized in loss from affiliate Asset Impairment Charges Ending balance Beginning balance Asset Retirement Obligation Asset backed debt securities Asset-backed Securities [Member] Changes in the asset retirement obligation Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Liability for additional lagoons placed in service Asset Retirement Obligation, Liabilities Incurred Asset Retirement Obligation Asset Retirement Obligations, Policy [Policy Text Block] Assets: Assets, Fair Value Disclosure [Abstract] Total assets Total Assets: Assets Total Assets Assets, Fair Value Disclosure Current assets: Assets, Current [Abstract] Assets Assets [Abstract] Total current assets Assets, Current Net assets of Sugar segment Net Assets Estimated fair value of fixed rate securities designated as available-for-sale, classified by the contractual maturity date of the security Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] Due within one year Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Fair Value Available-for-sale securities Short-term investments, available-for-sale Available-for-sale Securities Total fixed rate securities Available-for-sale Securities, Debt Securities Amortized Cost Available-for-sale Securities, Amortized Cost Basis Balance Sheet Location [Axis] Balance Sheet Location [Domain] Buildings and improvements Building and Building Improvements [Member] Increase in other long-term assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Percentage ownership acquired Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage Percent of non-controlling interest Business Acquisition, Percentage of Voting Interests Acquired Increase in fixed assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Increase in intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Amortized Cost Reported Value Measurement [Member] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Cash and cash equivalents Cash and cash equivalents at beginning of year Cash and cash equivalents at end of period Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents Cash and Cash Equivalents [Abstract] Collateralized mortgage obligations Collateralized Mortgage Obligations [Member] Notes Payable, Long-Term Debt, Commitments and Contingencies Commitments and contingent liabilities Commitments and Contingencies Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commodities Commodity contracts Commodity Contract [Member] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common Stock Common Stock [Member] Common stock of $1 par value, Authorized 1,250,000 shares; issued and outstanding 1,170,550 and 1,188,955 shares Common Stock, Value, Issued Common stock, issued shares Common Stock, Shares, Issued Common stock, Authorized shares Common Stock, Shares Authorized Common stock dividend declared and paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Common stock, outstanding shares Common Stock, Shares, Outstanding Employee Benefits Deferred income tax assets: Components of Deferred Tax Assets [Abstract] Components of total income taxes Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] Components of the net deferred income tax liability Components of Deferred Tax Assets and Liabilities [Abstract] Deferred income tax liabilities: Components of Deferred Tax Liabilities [Abstract] Comprehensive income attributable to Seaboard Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income: Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Less: Comprehensive loss (income) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Concentration Risk Type [Domain] Concentration Risk Concentration Risk [Line Items] Concentration Risk Benchmark [Domain] Concentration Risk Type [Axis] Concentration Risk [Table] Loss due to credit risk associated with derivative contracts Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure Concentration Risk Benchmark [Axis] Percentage of revenues Concentration Risk, Percentage Consolidation Items [Domain] Principles of Consolidation and Investments in Affiliates Consolidation, Policy [Policy Text Block] Consolidation Items [Axis] Construction in progress Construction in Progress [Member] Corporate bonds Corporate Bond Securities [Member] Corporate Items Corporate, Non-Segment [Member] Cost of sales and operating expenses: Cost of Revenue [Abstract] Products Cost of Goods Sold Total cost of sales and operating expenses Cost of Revenue Services Cost of Services Cost of sales Cost of Sales [Member] Credit Facility [Axis] Credit Facility [Domain] Currency [Axis] State and local Current State and Local Tax Expense (Benefit) Current: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Foreign Current Foreign Tax Expense (Benefit) Federal Current Federal Tax Expense (Benefit) Designated as hedge Designated as Hedging Instrument [Member] Debt Instrument Notes Payable Debt Instrument [Line Items] Schedule of Long-term Debt Instruments [Table] Notes Payable and Long-Term Debt Debt and Capital Leases Disclosures [Text Block] Notes Payable and Long-Term Debt Debt Instrument [Axis] Interest rate on loan provided (as a percent) Debt Instrument, Interest Rate, Effective Percentage Debt Instrument, Name [Domain] Interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Deferred compensation plan assets included in other current assets Deferred Compensation Plan Assets Federal Deferred Federal Income Tax Expense (Benefit) Deferred: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Foreign Deferred Foreign Income Tax Expense (Benefit) Deferred income taxes Deferred Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Net deferred income tax liability Deferred Tax Assets, Net Deferred revenue Deferred Revenue, Current Aggregate deferred income tax assets Deferred Tax Assets, Gross Net sales Deferred Revenue, Revenue Recognized Other Deferred Tax Assets, Other Reserves/accruals Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Current Tax credit carry-forwards Deferred Tax Assets, Tax Credit Carryforwards Valuation allowance Deferred Tax Assets, Valuation Allowance Other Deferred Tax Liabilities, Other Deferred income taxes Deferred Tax Liabilities, Net, Noncurrent Depreciation Deferred Tax Liabilities, Property, Plant and Equipment Aggregate deferred income tax liabilities Deferred Tax Liabilities, Net Deferred compensation plan liability included in other liabilities Deferred Compensation Liability, Classified, Noncurrent Amounts in AOCL expected to be recognized as components of net periodic benefit cost in 2014 Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year [Abstract] 2018 Defined Benefit Plan, Expected Future Benefit Payments, Year Five Pension settlement loss Settlement Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements Contributions expected to be made to defined benefit pension plans Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year Benefit obligation at beginning of year Benefit obligation at end of year Defined Benefit Plan, Benefit Obligation Total accumulated other comprehensive loss Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax Weighted-average assumptions Defined Benefit Plan, Assumptions Used in Calculations [Abstract] 2016 Defined Benefit Plan, Expected Future Benefit Payments, Year Three 2015 Defined Benefit Plan, Expected Future Benefit Payments, Year Two Accumulated loss, net of gain Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax Actuarial losses (gains) Defined Benefit Plan, Actuarial Gain (Loss) Discount rate used to determine obligations (as a percent) Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Defined Contribution Plan [Table] Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Domain] Expected return on plan assets (as a percent) Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets Defined Contribution Plan, Employer Matching Contribution, Percent of Match Employer contribution (as a percent of employee contributions) 2019 - 2023 Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter 2017 Defined Benefit Plan, Expected Future Benefit Payments, Year Four Pension settlement and curtailment loss Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments Discount rate used to determine net periodic benefit cost (as a percent) Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Amounts in AOCL expected to be recognized as components of net periodic benefit cost in 2014 Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year Target allocation and pension plan asset allocation Defined Benefit Plan Disclosure [Line Items] Actual return on plan assets Defined Benefit Plan, Actual Return on Plan Assets Amounts not reflected in net periodic benefit cost and included in accumulated other comprehensive loss (AOCL) before taxes Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Abstract] Employer contribution limit per calendar year (as a percent of compensation) Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 2014 Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months Benefits paid Defined Benefit Plan, Benefits Paid Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Long-term rate of increase in compensation levels (as a percent) Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Defined contribution plans Defined Contribution Plan Disclosure [Line Items] Reconciliation of fair value of plan assets: Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost Plan amendments Defined Benefit Plan, Plan Amendments Expected future net benefit payments Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] Service cost Defined Benefit Plan, Service Cost Funded status Defined Benefit Plan, Funded Status of Plan Plan curtailments Defined Benefit Plan, Curtailments Reconciliation of benefit obligation: Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Interest cost Defined Benefit Plan, Interest Cost Estimated fair value of plan assets Fair value of plan assets at beginning of year Fair value of plan assets at end of year Defined Benefit Plan, Fair Value of Plan Assets Contributions made to defined benefit pension plans Employer contributions Defined Benefit Plan, Contributions by Employer Plan settlement Defined Benefit Plan, Settlements, Plan Assets Curtailment Pension curtailment loss Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments Plan settlement Defined Benefit Plan, Settlements, Benefit Obligation Components of net periodic benefit cost: Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] Expected return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Contribution expense Defined Contribution Plan, Cost Recognized Defined Benefit Plan, Asset Categories [Axis] Accrued pension liability Defined Benefit Pension Plan, Liabilities, Noncurrent Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Agreement termination gain Defined Benefit Plan, Special Termination Benefits Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Prior service cost, net of credit Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax Depreciation and amortization Depreciation, Depletion and Amortization Derivative commodity instruments Derivative [Line Items] Derivative Instrument [Axis] Derivative [Table] Derivatives Asset Derivatives Derivative Asset Derivatives Liability Derivatives Derivative Liability Derivative, by Nature [Axis] Amount of Gain or (Loss) Recognized in Income on Derivatives Derivative, Gain (Loss) on Derivative, Net Number of derivative agreements entered into Derivative, Number of Instruments Held Derivative, Name [Domain] Amount of gain or (loss) recognized for each type of derivative and its location in the Consolidated Statements of Comprehensive Income Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Table] Derivative Contract [Domain] Derivative Instruments and Hedging Activities Derivatives, Policy [Policy Text Block] Derivatives and Fair Value of Financial Instruments Derivatives and Fair Value [Text Block] Fair value of each type of derivative and its location in the Consolidated Balance Sheets Derivatives, Fair Value [Line Items] Disposal Groups, Including Discontinued Operations, Name [Domain] Dividends on common stock Dividends, Common Stock Due from affiliates Due from Related Parties, Current Payables due to affiliates Due to Affiliate, Current Note Receivable from Affiliates Due from Affiliates Earnings per common share (in dollars per share) Earnings Per Share, Basic Earnings Per Common Share Earnings Per Share, Policy [Policy Text Block] Effect of exchange rate change on cash Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations Effective income tax rate for components of accumulated other comprehensive loss (as a percent) Effective Income Tax Rate Reconciliation, Percent Income tax rate for foreign currency translation gains and losses (as a percent) Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Accrued compensation and benefits Employee-related Liabilities, Current Excess of carrying value of investment in affiliates over entity's share of affiliates' book value Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Net sales Equity Method Investment, Summarized Financial Information, Revenue Schedule of combined condensed financial information of non-controlled, non-consolidated affiliates Equity Method Investments [Table Text Block] Total assets Equity Method Investment, Summarized Financial Information, Assets Equity Method Investment, Ownership Percentage Percentage of ownership interest accounted as equity method investment Combined condensed financial information of the non-controlled, non-consolidated affiliates Equity Method Investment, Summarized Financial Information [Abstract] Net income (loss) Equity Method Investment, Summarized Financial Information, Net Income (Loss) Investment, Name [Domain] Equity Component [Domain] Total liabilities Equity Method Investment, Summarized Financial Information, Liabilities Operating income (loss) Equity Method Investment, Summarized Financial Information, Income (Loss) from Continuing Operations before Extraordinary Items Dividends received from affiliates Proceeds from Equity Method Investment, Dividends or Distributions Investments in and Advances to Affiliates and Notes Receivable from Affiliates Equity Method Investment Summarized Financial Information, Equity Equity investment in affiliates Investments in and Advances to Affiliates and Notes Receivable from Affiliates Equity Method Investments and Joint Ventures Disclosure [Text Block] Deposit into escrow for potential dry dock costs Escrow Deposits Related to Property Sales Portion of sales price remaining in escrow Escrow Deposit Balance at period end Fair Value Estimate of Fair Value Measurement [Member] Amount that inventories would have been higher by if the FIFO method had been used Excess of Replacement or Current Costs over Stated LIFO Value Domestic equity ETF Exchange Traded Funds [Member] Recurring basis Fair Value, Measurements, Recurring [Member] Measurement Frequency [Axis] Fair Value, Hierarchy [Axis] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Measurement Frequency [Domain] Assets and liabilities measured at fair value on a recurring basis and also its level within the fair value hierarchy Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value Hierarchy [Domain] Measurement Basis [Axis] Schedule of amortized cost and estimated fair values of investments and long term debt Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, by Balance Sheet Grouping [Table] Schedule of amortized cost and estimated fair values of investments and long term debt Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Value Measurement [Domain] Level 2 Fair Value, Inputs, Level 2 [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Total inventories at lower of FIFO cost or market FIFO Inventory Amount Future amortization expense year four Finite-Lived Intangible Assets, Amortization Expense, Year Four Current amortization expense and future amortization expense Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract] Gross carrying amount customer relationships Finite-Lived Customer Relationships, Gross Accumulated amortization customer relationships Finite-Lived Intangible Assets, Accumulated Amortization Other intangible assets subject to amortization, net Finite-Lived Intangible Assets, Net Future amortization expense year one Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Other intangible assets subject to amortization: Finite-Lived Intangible Assets, Net [Abstract] Future amortization expense year five Finite-Lived Intangible Assets, Amortization Expense, Year Five Future amortization expense year two Finite-Lived Intangible Assets, Amortization Expense, Year Two Future amortization expense year three Finite-Lived Intangible Assets, Amortization Expense, Year Three Fixed income mutual funds Fixed Income Funds [Member] Fixed income Fixed Income Securities [Member] Foreign currency Foreign Currency Gain (Loss) [Member] Foreign Foreign Tax Authority [Member] Foreign Currency Transactions and Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Foreign currency exchange agreements Foreign currencies Foreign Exchange Contract [Member] Foreign currency exchange gain Foreign Currency Transaction Gain (Loss), Unrealized Foreign currency losses, net Foreign Currency Transaction Gain (Loss), before Tax Foreign Currency Transactions and Translation Foreign Currency Transaction [Abstract] Office furniture and fixtures Furniture and Fixtures [Member] Gain from sale of fixed assets Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Gain on sale of controlling interest in a subsidiary Gain (Loss) on Disposition of Stock in Subsidiary Gain on sale of controlling interest in a subsidiary Gain recognized related to divestiture of businesses Gain on Sale of Investments Gain from sale of power generating facility assets Gain (Loss) on Disposition of Property Plant Equipment Geographic concentration Geographic Concentration Risk [Member] Impairment charges Goodwill and Intangible Asset Impairment Goodwill and Other Intangible Assets Goodwill and Intangible Asset Impairment [Abstract] Goodwill Goodwill Goodwill and Other Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Goodwill and Other Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Decrease in goodwill Goodwill, Written off Related to Sale of Business Unit Goodwill and Other Intangible Assets, Net Gross income Gross Profit Heating oil Heating Oil [Member] Hedging Designation [Axis] Hedging Designation [Domain] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Impairment charge Fixed asset impairment charge Impairment of Long-Lived Assets Held-for-use Income (loss) from affiliates Loss (income) from affiliates Income (Loss) from Affiliates: Income (Loss) from Equity Method Investments Income Tax Authority [Domain] Loss attributable to noncontrolling interest partially offsetting impairment charge Income (Loss) Attributable to Noncontrolling Interest Condensed Consolidated Statements of Comprehensive Income Components of earnings before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract] Income Statement Location [Axis] Earnings before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income Taxes Disposal Group Name [Axis] Transactions resulting from deconsolidation Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Income Tax Authority [Axis] United States Income (Loss) from Continuing Operations before Income Taxes, Domestic Income Statement Location [Domain] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income taxes receivable Income Taxes Receivable Income tax expense Income Tax Expense (Benefit) Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Tax savings due to tax holiday Income Tax Holiday, Aggregate Dollar Amount Total income taxes Income Tax Expense (Benefit), Intraperiod Tax Allocation Income Taxes Income Tax Disclosure [Text Block] Tax savings per diluted earnings per common share (in dollars per share) Income Tax Holiday, Income Tax Benefits Per Share Domestic manufacturing deduction Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount Reconciliation of computed expected tax expense excluding non-controlling interest to income tax expense (benefit) attributable to continuing operations Effective Income Tax Rate Reconciliation, Amount [Abstract] Income taxes (net of refunds) Income Taxes Paid, Net Federal tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount Computed expected tax expense excluding non-controlling interest Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount State income taxes, net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Income Taxes Income Tax, Policy [Policy Text Block] Tax-exempt income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Foreign tax differences Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Other current assets Increase (Decrease) in Other Current Assets Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Inventories Increase (Decrease) in Inventories Receivables, net of allowance Increase (Decrease) in Receivables Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Other intangible assets not subject to amortization: Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract] Other intangible assets, net Intangible Assets, Net (Excluding Goodwill) Interest expense Interest Expense Interest (net of amounts capitalized) Interest Paid, Net Interest rate swaps Interest rate exchange agreements Interest Rate Swap [Member] Interest expense Interest Expense [Member] Inventories Total inventories Inventory, Net Reserve for LIFO Valuation: Inventory Valuation Reserve [Member] LIFO method increase (decrease) in earnings Inventory, LIFO Reserve, Effect on Income, Net Inventories Inventory, Policy [Policy Text Block] LIFO adjustment Inventory, LIFO Reserve Inventories Inventory Disclosure [Text Block] Inventory write-down Inventory Write-down Inventories Short-Term Investments Investment, Policy [Policy Text Block] Investments [Domain] Investment Type [Axis] Fair value of investments Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures, Fair Value Disclosure Summary of estimated fair value of fixed rate securities designated as available-for-sale, classified by the contractual maturity date of the security Investments Classified by Contractual Maturity Date [Table Text Block] Investments in and advances to affiliates Investment in and Advances to Affiliates: Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Total investment in affiliate Investments in and Advances to Affiliates and Notes Receivable from Affiliates Investments in and Advances to Affiliates [Line Items] Investments in and Advances to Affiliates [Table] Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Letters of credit outstanding Letters of Credit Outstanding, Amount Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Land and improvements Land and Land Improvements [Member] Total current liabilities Liabilities, Current Total liabilities and stockholders' equity Liabilities and Equity Total Liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Total non-current liabilities Liabilities, Noncurrent Current liabilities: Liabilities, Current [Abstract] Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Liabilities: Liabilities, Fair Value Disclosure [Abstract] Total inventories at lower of LIFO cost or market LIFO Inventory Amount Notes payable to banks Long-term Line of Credit Maximum capacity Line of Credit Facility, Maximum Borrowing Capacity Credit Agreement Line-of-credit Line of Credit [Member] Term loan Loans Receivable [Member] Long-term debt Long-term Debt, Fair Value Long-term debt, less current maturities Long-term Debt and Capital Lease Obligations Thereafter Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal after Year Five 2017 Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Four 2016 Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Three 2014 Long-term Debt and Capital Lease Obligations, Repayments of Principal in Next Twelve Months 2015 Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Two 2018 Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Five Current maturities of long-term debt Long-term Debt and Capital Lease Obligations, Current Loss Contingencies [Table] Contingencies Loss Contingencies [Line Items] Number of civil or criminal proceedings or charges filed Loss Contingency, New Claims Filed, Number Machinery and equipment Machinery and Equipment [Member] Margin account Margin Deposit Assets Maximum Maximum [Member] Minimum Minimum [Member] Dividends paid to noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Money market funds Money Market Funds [Member] Movement in valuation and qualifying accounts Movement in Valuation Allowances and Reserves [Roll Forward] Contribution expense for multi-employer pension fund, the United Food & Commercial Workers International Union-Industry Pension Fund, which covers certain union employees under a collective bargaining agreement Multiemployer Plan, Period Contributions Long-lived assets Long-Lived Assets Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Net change in cash and cash equivalents Net Cash Provided by (Used in) Continuing Operations Net earnings attributable to Seaboard Net Income (Loss) Available to Common Stockholders, Basic Net cash from operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash from financing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash from investing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Less: Net loss (income) attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Recently Issued Accounting Standards Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Total other income, net Nonoperating Income (Expense) Other income (expense): Nonoperating Income (Expense) [Abstract] Other Nontrade Receivables, Current Receivable from affiliate Notes Receivable, Related Parties, Current Long-term note receivable Notes Receivable [Member] Notes payable to bank Notes Payable to Banks [Member] Notes receivable from affiliates Notes Receivable, Related Parties, Noncurrent Number of reportable segments Number of Reportable Segments Noncontrolling Interest Noncontrolling Interest [Member] Decrease in noncontrolling interest Noncontrolling Interest, Decrease from Deconsolidation 2018 Operating Leases, Future Minimum Payments, Due in Five Years Operating Leases Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2017 Operating Leases, Future Minimum Payments, Due in Four Years 2016 Operating Leases, Future Minimum Payments, Due in Three Years Rental expense for operating leases Operating Leases, Rent Expense, Net 2015 Operating Leases, Future Minimum Payments, Due in Two Years Operating income Operating Income (Loss): Operating Income (Loss) Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Operating Segments Operating Segments [Member] 2014 Operating Leases, Future Minimum Payments Due, Next Twelve Months Net operating loss carry-forwards (NOLs) Operating Loss Carryforwards Accounting Policies and Basis of Presentation Accounting Policies and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Amount reclassified from OCL to net earnings Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), Net of Tax Other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax Other current liabilities Other current liability Other Current Liabilities [Member] Agreement termination gain unrecognized in other comprehensive income, before tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Amount reclassified from OCL to net earnings Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax Tax benefit recorded on unrecognized pension cost Other current assets Other Current Assets [Member] Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Other assets Other Assets, Noncurrent Other comprehensive income (loss), income tax benefit Other Comprehensive Income (Loss), Tax Other current assets Other Assets, Current Other, net Other Operating Activities, Cash Flow Statement Other comprehensive income (loss), net of income tax benefit of $1,506, $4,012, $11,894 and $9,552: Other Comprehensive Income (Loss), Net of Tax [Abstract] Agreement termination gain unrecognized in other comprehensive income, net of tax Unrealized gain Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax Other Other Cost of Operating Revenue Other Finite-Lived Intangible Assets, Gross Gross carrying amount other intangible assets Other trading investments Other Debt Obligations [Member] Unrealized gain (loss) Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Miscellaneous, net Other Nonoperating Income (Expense) Other liabilities and deferred credits Other Liabilities, Noncurrent Other current liabilities Other Liabilities, Current Other Other Inventory, Net of Reserves Other Other Revenue, Net Other Other Security Investments [Member] Changes in the components of other comprehensive loss (OCL), net of related taxes Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Investments: Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Unrecognized pension cost Unrecognized pension cost Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent Pension Cost: Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Unrealized gain on cash flow hedges Other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Unrealized gain (loss) on investments Unrealized gain (loss) on investments Fee for early payment Payments of Debt Extinguishment Costs Repurchase of common stock Payments for Repurchase of Common Stock Purchase of long-term investments Payments for (Proceeds from) Long-term Investments Other, net Payments for (Proceeds from) Other Investing Activities Dividends paid to noncontrolling interests Payments of Ordinary Dividends, Noncontrolling Interest Amount invested for acquiring non-controlling interest Payments to Acquire Equity Method Investments Acquisition of business, net of cash acquired Cash paid, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Dividends paid Payments of Ordinary Dividends, Common Stock Investments in and advances to affiliates, net Payments to Acquire Interest in Subsidiaries and Affiliates Capital expenditures Payments to Acquire Property, Plant, and Equipment Purchase of short-term investments Payments to Acquire Short-term Investments Partial purchase of noncontrolling interest in a consolidated subsidiary Payment to increase ownership interest in affiliate Payments to Noncontrolling Interests Employee Benefits Pension and Other Postretirement Benefits Disclosure [Text Block] Defined benefit pension plan Pension Plan [Member] Plan Asset Categories [Domain] Principal payments received on long-term notes receivable from affiliates Proceeds from Collection of Advance to Affiliate Cash received from divestiture of businesses Proceeds from Divestiture of Businesses Other, net Proceeds from (Payments for) Other Financing Activities Proceeds from the maturity of short-term investments Proceeds from Maturities, Prepayments and Calls of Short-term Investments Notes payable to banks, net Proceeds from (Repayments of) Short-term Debt Principal payments received on notes receivable Proceeds from Collection of Notes Receivable Proceeds from the sale of controlling interest in a subsidiary Proceeds from Divestiture of Interest in Subsidiaries and Affiliates Net proceeds from sale of controlling interest in subsidiary Cash proceeds Proceeds from the issuance of long-term debt Proceeds from Issuance of Long-term Debt Proceeds from the sale of short-term investments Proceeds from Sale of Short-term Investments Proceeds from the sale of fixed assets Proceeds from Sale of Productive Assets Net earnings Net earnings Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Useful Lives Property, Plant and Equipment, Useful Life Gross property, plant and equipment Property, Plant and Equipment, Gross Net property, plant and equipment Property, Plant and Equipment, Net Property, Plant and Equipment Net Property, Plant and Equipment Summary of property, plant and equipment Property, Plant and Equipment [Table Text Block] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Axis] Net Property, Plant and Equipment Property, Plant and Equipment Disclosure [Text Block] Property, plant and equipment Property, Plant and Equipment [Line Items] Range [Axis] Range [Domain] Receivables: Receivables, Net, Current [Abstract] Receivables, net of allowance Receivables, Net, Current Notes Receivable from Affiliates Receivables, Policy [Policy Text Block] Amounts reclassified from accumulated other comprehensive income (loss) Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Reconciliation of the beginning and ending amount of unrecognized tax benefits Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Summary of specific financial information related to total assets Reconciliation of Assets from Segment to Consolidated [Table Text Block] Summary of specific financial information related to operating income (loss) Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Related Party [Axis] Related Party [Domain] Principal payments of long-term debt Principal payments of long-term debt Repayments of Long-term Debt Retained earnings Retained Earnings (Accumulated Deficit) Retained Earnings Retained Earnings [Member] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Products, sales to affiliates Revenue from Related Parties Sales to External Customers: Revenues Geographic Information Revenues from External Customers and Long-Lived Assets [Line Items] Products (includes sales to affiliates of $205,644, $183,968, $580,661 and $531,051) Sales Revenue, Goods, Net Total net sales Revenue, Net Net sales: Revenue, Net [Abstract] Revenues Total sales Sales [Member] Service revenues Sales Revenue, Services, Net Anticipated Scenario, Forecast [Member] Scenario, Unspecified [Domain] Schedule of assets and liabilities measured at fair value on a recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of changes in the asset retirement obligation Schedule of Change in Asset Retirement Obligation [Table Text Block] Schedule of net periodic benefit cost of plans Schedule of Net Benefit Costs [Table Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of the funded status Schedule of Net Funded Status [Table Text Block] Schedule of amounts not reflected in net periodic benefit cost and included in accumulated other comprehensive loss (AOCL) before taxes Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block] Schedule of components of total income taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of reconciliation of computed expected tax expense excluding non-controlling interest to income tax expense (benefit) attributable to continuing operations Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of components of earnings before income taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of components of the net deferred income tax liability Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of components of accumulated other comprehensive loss, net of related taxes Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Summary of inventories Schedule of Inventory, Current [Table Text Block] Schedule of changes in the components of other comprehensive loss (OCL), net of related taxes Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Assumptions Used [Table Text Block] Schedule of assumptions used in determining pension information for plans Summary of long-term debt Schedule of Long-term Debt Instruments [Table Text Block] Summary of specific financial information related to sales to external customers Revenue from External Customers by Products and Services [Table Text Block] Investment, Name [Axis] Geographic summary of the entity's long-lived assets according to their physical location and primary port for the vessels Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] Schedule of Defined Benefit Plans Disclosures [Table] Property, Plant and Equipment [Table] Schedule of non-cash transactions resulting from the deconsolidation Schedule of Noncash or Part Noncash Divestitures [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of fair value of each type of derivative and its location in the Consolidated Balance Sheets Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule II Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Schedule of gain or (loss) recognized for each type of derivative and its location in the Consolidated Statements of Comprehensive Income Derivative Instruments, Gain (Loss) [Table Text Block] Segment Information Segment Information Segment Reporting Information [Line Items] Segments [Domain] Segment Information Segment Reporting Disclosure [Text Block] Geographical [Domain] Selling, general and administrative expenses Selling, General and Administrative Expense Share price of common stock under repurchase program (in dollars per share) Share Price Short-term investments Short-term Investments [Member] Investments Short-term investments Total available-for-sale and trading short term investments, fair value Short-term Investments Notes payable to banks Short-term Bank Loans and Notes Payable Weighted average interest rate (as a percent) Short-term Debt, Weighted Average Interest Rate State State and Local Jurisdiction [Member] Scenario [Axis] Statement [Table] Stockholders' Equity and Accumulated Other Comprehensive Loss Statement [Line Items] Consolidated Statements of Changes in Equity Geographical [Axis] Condensed Consolidated Statements of Cash Flows Equity Components [Axis] Condensed Consolidated Balance Sheets Segments [Axis] Stock repurchase programs, authorized amount Stock Repurchase Program, Authorized Amount Repurchase of common stock Stock Repurchased and Retired During Period, Value Common stock repurchased (in shares) Stock Repurchased and Retired During Period, Shares Stockholders' equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders' Equity, Period Increase (Decrease) Total Seaboard stockholders' equity Stockholders' Equity Attributable to Parent Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Stockholders' Equity and Accumulated Other Comprehensive Loss Stockholders' Equity and Accumulated Other Comprehensive Loss Stockholders' Equity Note Disclosure [Text Block] Subordinated loan Subordinated Debt [Member] Subsequent event Subsequent Event [Member] Subsequent Event Type [Domain] Subsequent Event Type [Axis] Ownership after increase (as a percent) Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions Schedule of reconciliation of the beginning and ending amount of unrecognized tax benefits Summary of Income Tax Contingencies [Table Text Block] Supplemental Non-Cash Transactions Supplemental Cash Flow Information [Abstract] Supplemental executive plans and retirement agreements Supplemental Employee Retirement Plan [Member] Supplier concentration risk Supplier Concentration Risk [Member] Tax credit carry-forwards Tax Credit Carryforward, Amount Accounts Receivable Trade and Other Accounts Receivable, Policy [Policy Text Block] Trading securities Trading Securities [Member] Fair Value Trading securities Short-term investments, trading securities Trading Securities Amortized Cost Trading Securities, Cost Vessels and vehicles Transportation Equipment [Member] Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Undistributed earnings from foreign operations Undistributed Earnings of Foreign Subsidiaries Additions for uncertain tax positions of current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Decreases for uncertain tax positions of prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Unrecognized tax benefits, if recognized, would affect the effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Balance at the beginning of the year Balance at the end of the year Unrecognized Tax Benefits Additions for uncertain tax positions of prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Accrued interest and penalties on uncertain tax positions Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Schedule of non-cancelable purchase commitments and commitments under other agreements Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block] Thereafter Unrecorded Unconditional Purchase Obligation, Due after Five Years 2018 Unrecorded Unconditional Purchase Obligation, Due within Five Years Commitments Unrecorded Unconditional Purchase Obligation [Line Items] Amount paid under the contract Unrecorded Unconditional Purchase Obligation, Purchases 2014 Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months 2016 Unrecorded Unconditional Purchase Obligation, Due within Three Years Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] 2015 Unrecorded Unconditional Purchase Obligation, Due within Two Years Unrecorded Unconditional Purchase Obligation [Table] 2017 Unrecorded Unconditional Purchase Obligation, Due within Four Years Use of Estimates Use of Estimates, Policy [Policy Text Block] U.S. Government bonds US Government Debt Securities [Member] U.S. Government agency securities US Government Agencies Debt Securities [Member] U.S. Treasury securities U.S. Treasury STRIPS US Treasury Securities [Member] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves [Domain] Provision/ charged (credit) to expense Valuation Allowances and Reserves, Charged to Cost and Expense Balance at beginning of year Balance at end of year Valuation Allowances and Reserves, Balance Allowance for Deferred Tax Assets: Valuation Allowance of Deferred Tax Assets [Member] Schedule II Valuation and Qualifying Accounts Valuation and Qualifying Accounts Valuation and Qualifying Accounts Disclosure [Line Items] Valuation Allowances and Reserves Type [Axis] Detachable warrants Warrant [Member] Grain, flour and feed at lower of weighted average cost or market Weighted Average Cost Inventory Amount Average number of shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic