Document and Entity Information Statement [Table] Statement [Line Items] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Current Reporting Status Entity Filer Category Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Consolidated Statement of Comprehensive Income Revenue, Net [Abstract] Net sales: Sales Revenue, Goods, Net Products (includes sales to affiliates of $212,464, $179,031, $424,170 and $375,017) Sales Revenue, Services, Net Service revenues Other Revenue, Net Other Revenue, Net Total net sales Cost of Revenue [Abstract] Cost of sales and operating expenses: Cost of Goods Sold Products Cost of Services Services Other Cost of Operating Revenue Other Cost of Revenue Total cost of sales and operating expenses Gross Profit Gross income Selling, General and Administrative Expense Selling, general and administrative expenses Operating Income (Loss) Operating Income (Loss): Operating income Nonoperating Income (Expense) [Abstract] Other income (expense): Interest Expense Interest expense 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 Income Interest including Accretion or Amortization of Discount or Premium Interest income Represents the interest income from affiliates earned by the entity during the reporting period. Interest Income from Affiliates Interest income from affiliates Income (Loss) from Equity Method Investments Income from affiliates Loss from affiliates Income from affiliates Income (Loss) from Affiliates: Represents the other investment income expense, net earned by the entity during the reporting period. Other Investment Income (Expense), Net Other investment income, net Other investment income (loss), net Foreign Currency Transaction Gain (Loss), before Tax Foreign currency gains (losses), net Other Nonoperating Income (Expense) Miscellaneous, net Nonoperating Income (Expense) Total other income, net Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Earnings before income taxes Income Tax Expense (Benefit) Income tax expense Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net earnings Net earnings Net Income (Loss) Attributable to Noncontrolling Interest Less: Net income attributable to noncontrolling interests Net Income (Loss) Available to Common Stockholders, Basic Net earnings attributable to Seaboard Earnings Per Share, Basic Earnings per common share (in dollars per share) Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income (loss), net of income tax benefit of $682, $725, $824 and $10,388: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation adjustment 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 Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Unrealized gain (loss) on cash flow hedges Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent Unrecognized pension cost Unrecognized pension cost Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive loss, net of tax Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income Comprehensive (Income) Loss, Net of Tax, Attributable to Noncontrolling Interest Less: Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income attributable to Seaboard Weighted Average Number of Shares Outstanding, Basic Average number of shares outstanding (in shares) Revenue from Related Parties Products, sales to affiliates Other Comprehensive Income (Loss), Tax Other comprehensive income (loss), income tax benefit Condensed Consolidated Balance Sheets Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of year Cash and cash equivalents Short-term Investments Short-term investments Total short term investments, fair value Receivables, Net, Current Receivables, net of allowance Inventory, Net Inventories Total inventories Deferred Tax Assets, Net of Valuation Allowance, Current Deferred income taxes Other Assets, Current Other current assets Assets, Current Total current assets Property, Plant and Equipment, Net Net property, plant and equipment Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Total investment in affiliate Investments in and advances to affiliates Investment in and Advances to Affiliates: Notes Receivable, Related Parties, Noncurrent Notes receivable from affiliates Other Assets, Noncurrent Other assets Assets Total Assets: Total assets Liabilities and Equity [Abstract] Liabilities and Stockholders' Equity Liabilities, Current [Abstract] Current liabilities: Short-term Bank Loans and Notes Payable Notes payable to banks Accounts Payable, Current Accounts payable Deferred Revenue, Current Deferred revenue Other Liabilities, Current Other current liabilities Liabilities, Current Total current liabilities Deferred Tax Liabilities, Net, Noncurrent Deferred income taxes Other Liabilities, Noncurrent Other liabilities and deferred credits Liabilities, Noncurrent Total non-current liabilities Commitments and Contingencies. Commitments and contingent liabilities Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders' equity: Common Stock, Value, Issued Common stock of $1 par value, Authorized 1,250,000 shares; issued and outstanding 1,170,550 shares Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Retained earnings Stockholders' Equity Attributable to Parent Total Seaboard stockholders' equity Stockholders' Equity Attributable to Noncontrolling Interest Noncontrolling interests Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total equity Liabilities and Equity Total liabilities and stockholders' equity Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, Authorized shares Common Stock, Shares, Issued Common stock, issued shares Common Stock, Shares, Outstanding Common stock, outstanding shares Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net earnings to cash from operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Gain from sale of fixed assets Deferred Income Tax Expense (Benefit) Deferred income taxes 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. Paid in Kind Interest Income Pay-in-kind interest and accretion on notes receivable from affiliates Non-cash, pay-in-kind interest income and accretion of discount recognized on a note receivable from an affiliate Proceeds from Equity Method Investment, Dividends or Distributions Dividends received from affiliates 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 Noncash Income (Expense) and Other Items Other, net Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities: Increase (Decrease) in Receivables Receivables, net of allowance Increase (Decrease) in Inventories Inventories Increase (Decrease) in Other Current Assets Other current assets 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. Increase (Decrease) in Current Liabilities Exclusive of Debt, Current Current liabilities, exclusive of debt Other Operating Activities, Cash Flow Statement Other, net Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash from operating activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities: Payments to Acquire Short-term Investments Purchase of short-term investments Proceeds from Sale of Short-term Investments Proceeds from the sale of short-term investments Proceeds from Maturities, Prepayments and Calls of Short-term Investments Proceeds from the maturity of short-term investments Payments to Acquire Property, Plant, and Equipment Capital expenditures Proceeds from Sale of Productive Assets Proceeds from the sale of fixed assets Payments to Acquire Interest in Subsidiaries and Affiliates Investments in and advances to affiliates, net Proceeds from Collection of Advance to Affiliate Principal payments received on long-term notes receivable from affiliates Payments for (Proceeds from) Long-term Investments Purchase of long-term investments Payments for (Proceeds from) Other Investing Activities Other, net Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash from investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities: Proceeds from (Repayments of) Short-term Debt Notes payable to banks, net Repayments of Long-term Debt Principal payments of long-term debt Payments for Repurchase of Common Stock Repurchase of common stock Proceeds from (Payments for) Other Financing Activities Other, net Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash from financing activities Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations Effect of exchange rate change on cash Net Cash Provided by (Used in) Continuing Operations Net change in cash and cash equivalents Accounting Policies and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Accounting Policies and Basis of Presentation Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Investments Inventories Inventory Disclosure [Text Block] Inventories Income Taxes Income Tax Disclosure [Text Block] Income Taxes Derivatives and Fair Value of Financial Instruments Derivatives and Fair Value [Text Block] Derivatives and Fair Value of Financial Instruments Employee Benefits Pension and Other Postretirement Benefits Disclosure [Text Block] Employee Benefits Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Stockholders' Equity and Accumulated Other Comprehensive Loss Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity and Accumulated Other Comprehensive Loss Segment Information Segment Reporting Disclosure [Text Block] Segment Information Use of Estimates, Policy [Policy Text Block] Use of Estimates Disclosure of accounting policy for supplemental non-cash transactions. Supplemental Noncash Transactions Policy Text Block Supplemental Non-Cash Transactions New Accounting Pronouncements, Policy [Policy Text Block] Recently Issued Accounting Standards Not Yet Adopted The disclosure relating to policy for reporting accounting changes, excludes error corrections information. Accounting Changes, Policy [ Policy Text Block] Change in Accounting Method Investment [Table Text Block] Summary of the amortized cost and estimated fair value of short-term investments for both available-for-sale and trading securities Investments Classified by Contractual Maturity Date [Table Text Block] Summary of estimated fair value of fixed rate securities designated as available-for-sale, classified by the contractual maturity date of the security Schedule of Inventory, Current [Table Text Block] Summary of inventories Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of assets and liabilities measured at fair value on a recurring basis Derivative Instruments, Gain (Loss) [Table Text Block] Schedule of gain or (loss) recognized for each type of derivative and its location in the Condensed Consolidated Statements of Comprehensive Income Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of fair value of each type of derivative and its location in the Condensed Consolidated Balance Sheets Schedule of Net Benefit Costs [Table Text Block] Schedule of net periodic benefit cost of plans Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of changes in the components of other comprehensive loss (OCL), net of related taxes Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of components of accumulated other comprehensive loss, net of related taxes Revenue from External Customers by Products and Services [Table Text Block] Summary of specific financial information related to sales to external customers Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Summary of specific financial information related to operating income (loss) 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 Reconciliation of Assets from Segment to Consolidated [Table Text Block] Summary of specific financial information related to total assets Tabular disclosure of investments in and advances to affiliates by segment. Schedule of Investment in and Advances to Affiliates by Segment [Text Block] Summary of specific financial information related to investments in and advances to affiliates Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Transactions resulting from deconsolidation Supplemental Cash Flow Information [Abstract] Supplemental Non-Cash Transactions Represents information pertaining to number of affiliates. Number of Affiliates Number of affiliates Change in Accounting Estimate [Abstract] Change in Accounting Method Payments to Acquire Equity Method Investments Amount invested under equity method Amount invested for acquiring non-controlling interest Represents the capacity of the power generating facilities. Capacity Of Power Generating Facility Capacity of power facility (in megawatts) Equity Method Investment, Ownership Percentage Percentage of ownership interest accounted as equity method investment Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Percentage of ownership interest accounted as cost method investment Cost Method Investments, Original Cost Amount investment under cost method Investments in and Advances to Affiliates, at Fair Value, Period Increase (Decrease) Increase in investment in affiliates Increase (Decrease) in Income Taxes Tax impact Investment [Table] Currency [Axis] All Currencies [Domain] All Currencies [Domain] G B [P] Denominated in British pounds C A [D] Denominated in Canadian dollars Investment [Axis] Investment [Domain] Investment [Domain] Availableforsale Securities [Member] Available-for-sale securities. Money Market Funds [Member] Money market funds Corporate Bond Securities [Member] Corporate bonds U S Government Agencies Debt Securities [Member] U.S. Government agency securities Represents information pertaining to other available-for-sale investments Other Available For Sale Investments [Member] Other available-for-sale investments Trading Account Assets [Member] Trading securities. 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 [Member] High yield trading debt securities Represents the investment in equity mutual funds. Equity Mutual Funds [Member] Equity mutual fund Exchange Traded Funds [Member] Domestic equity ETF 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 [Member] Money market funds held in trading accounts Represents information pertaining to other trading investments. Other Trading Investments [Member] Other trading investments Investment [Line Items] Investments Available-for-sale Securities, Amortized Cost Basis Amortized Cost Available-for-sale Securities Fair Value Available-for-sale securities Trading Securities, Cost Amortized Cost Trading Securities Fair Value Trading securities This item represents a parenthetical disclosure of the amortized cost of securities classified as short-term investments. Short Term Investments at Amortized cost Total short term investments, amortized cost Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] 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, Next Twelve Months, Fair Value Due within one year 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. Available For Sale Securities, Debt Maturities after One Through Three Years, Fair Value Due after one year through three years 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 Available-for-sale Securities, Debt Securities Total fixed rate securities Lower of LIFO Cost or Market [Abstract] At lower of LIFO cost or market: Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date, of live hogs and materials, before LIFO adjustment. Inventory Live Hogs and Materials before LIFO Adjustment, Net of Reserve Live hogs 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 Fresh pork and materials 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 Inventories at lower of LIFO cost or market, Gross Inventory, LIFO Reserve LIFO adjustment LIFO Inventory Amount Total inventories at lower of LIFO cost or market Lower of FIFO Cost or Market [Abstract] At lower of FIFO cost or market: 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 Carrying amount, net of valuation reserve and adjustment, as of the balance sheet date of sugar produced and in process. Inventory, Sugar Produced and in Process, Net of Reserves Sugar produced and in process Other Inventory, Net of Reserves Other FIFO Inventory Amount Total inventories at lower of FIFO cost or market Weighted Average Cost Inventory Amount Grain, flour and feed at lower of weighted average cost or market 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 Transfers that occurred into or out of level 1 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 Represents the transfers into or out of level 3 fair value hierarchy that have taken place during the period. Fair Value Measurement Transfers into or out of Level 3 Transfers that occurred into or out of level 3 Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Fair Value Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value Measurements Recurring [Member] Recurring basis Fair Value, Hierarchy [Axis] Fair Value Measurements Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Estimate Of Fair Value Fair Value Disclosure [Member] Fair Value Fair Value Inputs Level1 [Member] Level 1 Fair Value Inputs Level2 [Member] Level 2 Other Debt Securities [Member] Other trading investments Represents the domestic equity securities. Domestic Equity Securities [Member] Domestic equity securities Represents the foreign equity securities. Foreign Equity Securities [Member] Foreign equity securities Fixed Income Funds [Member] Fixed income mutual funds Other Aggregated Investments [Member] Other Investment Type [Axis] Investment Type Categorization [Member] Investments [Domain] Short Term Investments [Member] Short-term investments. Other Current Assets [Member] Other current assets Other Current Liabilities [Member] Other current liabilities Derivative Instrument [Axis] Derivative Contract Type [Domain] Derivative Contract [Domain] Commodity Contract [Member] Commodities Interest Rate Swap [Member] Interest rate swaps Foreign Exchange Contract [Member] Foreign currencies Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets and liabilities measured at fair value on a recurring basis and also its level within the fair value hierarchy Assets, Fair Value Disclosure [Abstract] Assets: Derivative Asset Derivatives Asset Derivatives Assets, Fair Value Disclosure Total Assets Margin Deposit Assets Margin account 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. Net Fair Value of Derivative Assets Net of Derivative Liabilities and Net of Margin Deposit Derivative assets and liabilities, net basis Liabilities, Fair Value Disclosure [Abstract] Liabilities: Derivative Liability Derivatives Liability Derivatives Financial and Nonfinancial Liabilities, Fair Value Disclosure Liabilities Derivative [Table] Derivative instrument whose primary underlying risk is tied to the purchase of commodities. Commodity Purchase Contract [Member] Net commodity purchase contracts Derivative instrument whose primary underlying risk is tied to the sale of commodities. Commodity Sale Contract [Member] Net commodity sale contracts Represents information pertaining to eight-year interest rate exchange agreements. Interest Rate Swap One [Member] Eight-year interest rate exchange agreements Derivative, by Nature [Axis] Derivative Name [Domain] Derivative, Name [Domain] Represents the derivative instrument whose primary underlying risk is tied to hogs. Hogs [Member] Hogs Represents the derivative instrument whose primary underlying risk is tied to grain. Grain [Member] Grain Represents the derivative instrument whose primary underlying risk is tied to soybean oil. Soybean Oil [Member] Soybean oil Represents the derivative instrument whose primary underlying risk is tied to soybean meal. Soybean Meal [Member] Soybean meal Represents the derivative instrument whose primary underlying risk is tied to whey powder. Whey Powder [Member] Dry whey powder Represents the derivative instrument whose primary underlying risk is tied to sugar. Sugar Contract [Member] Sugar Heating Oil [Member] Heating oil Derivative [Line Items] Derivative commodity instruments Derivative, Nonmonetary Notional Amount, Mass Nonmonetary notional amount Derivative, Nonmonetary Notional Amount, Volume Nonmonetary notional amount Derivative, Notional Amount Notional amounts Derivative, Number of Instruments Held Number of derivative agreements Represents the number of dry bulk vessel leases. Number of Dry Bulk Vessel Leases Number of dry bulk vessel leases Represents the term of the derivative contract entered into by the entity. Term of Derivative Contract Term of derivative contract The number of derivatives terminated by the entity. Derivative Number of Instruments Terminated Number of derivative agreements terminated Derivative Instruments, Gain (Loss) [Table] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost Of Sales [Member] Cost of sales Foreign Currency Gain Loss [Member] Foreign currency Caption reflecting the net miscellaneous income (expense) of items not included elsewhere in the income statement. Miscellaneous Net [Member] Miscellaneous, net Derivative Instruments, Gain (Loss) [Line Items] Amount of gain or (loss) recognized for each type of derivative and its location in the Consolidated Statements of Comprehensive Income Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure Loss due to credit risk associated with derivative contracts Represents the number of counterparties with respect to whom the entity has counterparty credit risk related to derivative contracts. Derivative Credit Risk Number of Counterparties Number of counterparties Derivative, Gain (Loss) on Derivative, Net Amount of Gain or (Loss) Recognized in Income on Derivatives Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Derivatives, Fair Value [Line Items] Fair value of each type of derivative and its location in the Consolidated Balance Sheets Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans [Domain] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Pension Plans Defined Benefit [Member] Defined benefit pension plan Defined Benefit Plan Disclosure [Line Items] Target allocation and pension plan asset allocation Represents the number of defined benefit plans. Number of Defined Benefit Plans Number of defined benefit plans Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year Contributions expected to be made to defined benefit pension plans Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] Components of net periodic benefit cost: Defined Benefit Plan, Service Cost Service cost Defined Benefit Plan, Interest Cost Interest cost Defined Benefit Plan, Expected Return on Plan Assets Expected return on plan assets 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. Defined Benefit Plan, Amortization and Other Costs Amortization and other Defined Benefit Plan, Net Periodic Benefit Cost Net periodic benefit cost 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 Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] 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 Debt Instrument [Line Items] Debt Instrument Letters of Credit Outstanding, Amount Letters of credit outstanding Loss Contingency [Abstract] Contingencies Represents number of foreign companies, of which records requested by Court. Number Of Foreign Companies Records Requested By Court Number of foreign companies, where records requested by court Represents number of subpoena. Number of Subpoena Number of subpoenas Represents number of entities, of which records requested by Court. Number Of Entities Records Requested By Court Number of entities, where records requested by court Represents number of individuals, of which records requested by Court. Number Of Individuals Records Requested By Court Number of individuals, where records requested by court Represents the number of search warrants executed authorizing the seizure of certain records. 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. Loss Contingency, New Claims Filed, Number Number of civil or criminal proceedings or charges filed Loss Contingency, Damages Sought, Value Estimated amount of withdrawal liability Represents the maximum time period that the withdrawal liability would have to be paid out in. Multiemployer Plans Withdrawal Obligation Maximum Period Of Payout Maximum time period to pay out the withdrawal liability Loss Contingency Accrual Accrued liability Contractual Obligation Agreed contribution Contractual Obligation, Future Minimum Payments Due, Remainder of Fiscal Year Contribution expected to be made in 2015 Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated Translation Adjustment [Member] Cumulative foreign currency translation adjustment Accumulated Net Unrealized Investment Gain Loss [Member] Unrealized gain on investments Accumulated Defined Benefit Plans Adjustment [Member] Unrecognized pension cost A R [S] Argentine pesos U S [D] U.S. dollars Segments [Axis] Segment [Domain] Segments [Domain] Represents the Sugar segment of the entity. Sugar [Member] Sugar Accumulated Other Comprehensive Income (Loss) [Line Items] Stockholders' Equity and Accumulated Other Comprehensive Loss Stock Repurchased During Period, Shares Repurchase of common stock (in shares) Share Price Share price Stock Repurchased During Period, Value Repurchase of common stock 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. Stock Repurchase Program Remaining from Original Authorized Repurchase Amount Remaining authorized repurchase amount under November 2009 share repurchase program Common Stock, Dividends, Per Share, Cash Paid Common stock dividend declared and paid (in dollars per share) Represents historical amount dividend on quarterly basis. Common Stock Dividends Historical Amount on Quarterly Basis Common stock dividend historical amount on a quarterly basis (in dollars per share) Represents historical amount dividend on annual basis. Common Stock Dividends Historical Amount on Annual Basis Common stock dividend historical amount on annual basis (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 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 second succeeding year. Common Stock Dividend Portion Serving as Prepayment of Dividend or Second Succeeding Year Portion of dividend serving as prepayment for second 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 or Third Succeeding Year 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 fourth succeeding year. Common Stock Dividend Portion Serving as Prepayment of Dividend or Fourth Succeeding Year Portion of dividend serving as prepayment for fourth succeeding year (in dollars per share) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Changes in the components of other comprehensive loss (OCL), net of related taxes Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Investments: Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized gain 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, Adjustment, Net of Tax, Portion Attributable to Parent [Abstract] Pension Cost: Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax Unrealized gain (loss) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), Net of Tax Amount reclassified from OCL to net earnings Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Components of accumulated other comprehensive loss, net of related taxes Assets, Net Net assets of Sugar segment Amount of net liabilities (assets). Net Liabilities Net liabilities Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Income tax rate for foreign currency translation gains and losses (as a percent) Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Cumulative foreign currency translation adjustment, net of related taxes Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent Tax benefit recorded on foreign currency translation adjustments Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax Tax benefit recorded on unrecognized pension cost Effective Income Tax Rate Reconciliation, Percent Effective income tax rate for components of accumulated other comprehensive loss (as a percent) Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), after Tax Unrecognized pension cost related to employees at certain subsidiaries Schedule of Segment Reporting Information, by Segment [Table] Disposal Group Name [Axis] Disposal Groups Including Discontinued Operations Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] Represents information pertaining to the sale of a portion of Daily's Premium Meats, a processed meats division of the Pork segment. Divestiture Of Portion Of Dailys Premium Meats [Member] Divestiture of a 50% interest in Daily's Legal Entity [Axis] Entity [Domain] Entity [Domain] Represents information pertaining to Triumph Foods LLC. Triumph Foods Llc [Member] Triumph Investment, Name [Axis] Equity Method Investee Name [Domain] Investment, Name [Domain] Represents the information pertaining to Butterball, LLC. Butterball L L C [Member] Butterball, LLC Represents the information pertaining to bakery business. Bakery Business [Member] Bakery business Represents information pertaining to a flour production in Brazil. Flour Production In Brazil [Member] Flour production in Brazil Represents information pertaining to a terminal operator in Jamaica. Terminal Operator In Jamaica [Member] Cargo terminal operator in Jamaica Represents information pertaining to the Daily's Premium Meats division. Dailys Premium Meats Division [Member] Daily's Represents the Pork segment of the entity. Pork Segment [Member] Pork Represents the Commodity Trading and Milling segment of the entity. Commodity Trading And Milling [Member] Commodity Trading and Milling segment Represents the Power segment of the entity. Power [Member] Power Represents the Turkey segment of the entity. Turkey [Member] Turkey Represents the flour segment of the entity. Flour [Member] Flour Represents the Marine segment of the entity. Marine [Member] Marine Investment Geographic Region [Axis] Investment Geographic Region [Domain] Investment Geographic Region [Domain] C [D] Democratic Republic of Congo Notes Receivable [Member] Long-term note receivable Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Supplier Concentration Risk [Member] Supplier concentration risk Segment Reporting Information [Line Items] Segment Information Represents the percentage of ownership interest sold by the entity. Percentage Of Ownership Interest Sold Percentage of ownership interest sold Represents the number of processing plants held by an entity. Number of Processing Plants Number of processing units Proceeds from Collection of Loans Receivable Payment received from interest bearing long-term notes Represents 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 Amount contributed as additional equity to provide additional working capital to equity method investee Represents number of suppliers. Number of Suppliers Number of suppliers Represents the capacity of the floating power generating facilities leased. Capacity of Floating Power Generating Facility Leased Capacity of power facility leased (in megawatts) Equity Method Investment, Summarized Financial Information, Revenue Net sales Equity Method Investment, Summarized Financial Information, Income (Loss) from Continuing Operations before Extraordinary Items Operating income (loss) Equity Method Investment, Summarized Financial Information, Assets Total assets Represents the entity's proportionate share of a deferred income tax asset allowance from affiliates. Proportionate Share Of Deferred Income Tax Asset Allowance From Affiliates Proportionate share of deferred income tax asset allowance from affiliates Equity Method Investment, Other than Temporary Impairment Used to Reduce Investment in Business Amount of investment Equity Method Investment, Other than Temporary Impairment Reserve on remaining portion of advances and long-term notes receivable Equity Method Investment, Summarized Financial Information, Liabilities Third party debt Due from Affiliates Due from affiliates Reserve On Receivable From Affiliates Reserve for receivable from affiliates Represents percentage of total amount of interest received in cash. Interest Received In Cash Interest received in cash (as a percent) Represents percentage of total amount of interest receivable in kind. Interest Receivable In Kind Interest receivable in kind (as a percent) Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments [Member] Segment Totals Corporate Non Segment [Member] Corporate Items All Other Segments [Member] All Other Revenues Sales to External Customers: D [O] Dominican Republic Range [Axis] Range [Member] Range [Domain] Maximum [Member] Maximum Change in Accounting Estimate by Type [Axis] Change In Accounting Estimate Type [Domain] Change in Accounting Estimate, Type [Domain] Change In Accounting Method Accounted For As Change In Estimate [Member] Change in accounting method A credit facility whereby terms and conditions are clearly defined by the lending institution and imposed upon the borrowing entity. Committed Line Of Credit [Member] Committed bank line Represents information related to a pork processing plant in Sioux City, Iowa. Pork Processing Plant In Sioux City Iowa [Member] Pork Processing Plant In Sioux City Iowa Common Stock [Member] Common Stock B [R] Brazil Primary financial statement caption encompassing advances and notes receivable. Advances And Notes Receivable [Member] Advances And Notes Receivable