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basis...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse10000001falsefalsefalsefalsefalse3truefalsefalse-58000000-58falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the net unrealized gains/losses on assets and liabilities measured at fair value on a recurring basis using unobservable inputs that are still held at the reporting date.No authoritative reference available.falsefalseChange In Unrealized Gains/(Losses) on Instruments Still Held82false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefal sefalsefalsefalsehttp://www.ford.com/2010-12-31/role/fairvaluemeasurementsreconciliationofchangesinlevel31falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse32falsefalseUSDtruefalse{f_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis} : Level 1 [Member] 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available.falsefalseLevel 1 | Marketable securities83true0f_ReconciliationOfChangesInLevel3BalancesAbstractffalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseReconciliation of Changes in Level 3 Balances [Abstract]84false0f_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisNetAssetsLiabilityTransfersNetffalsedebitdurationThis element represents [net] transfers in to and out of net assets and liabilities measured at fair value on a recurring...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse2000000020falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse< /hasScenarios>3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents [net] transfers in to and 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