2.2.0.25truefalse0618 - Disclosure - Subsequent Events (Details)truefalseIn Millions, unless otherwise specifiedfalse1falsefalseUSDtruefalse{us-gaap_BusinessAcquisitionAxis} : Quero [Member] 4/29/2010 - 4/27/2011 USD ($) $TwelveMonthsEnded_27Apr2011_Quero_Memberhttp://www.sec.gov/CIK0000046640duration2010-04-29T00:00:002011-04-27T00:00:00falsefalseQuero [Member]us-gaap_BusinessAcquisitionAxisxbrldihttp://xbrl.org/2006/xbrldihnz_QueroMemberus-gaap_BusinessAcquisitionAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2falsefalsetruefalse{us-gaap_BusinessAcquisitionAxis} : Quero [Member] 3/3/2011 BalanceAsOf_3March2011_Quero_Memberhttp://www.sec.gov/CIK0000046640instant2011-03-03T00:00:000001-01-01T00:00:00falsefalseQuero [Member]us-gaap_BusinessAcquisitionAxisxbrldihttp://xbrl.org/2006/xbrldihnz_QueroMemberus-gaap_BusinessAcquisitionAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli02true0hnz_SubsequentEventsTextualsAbstracthnzfalsenadurationSubsequent Events.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringSubsequent Events.falsefalseSubsequent Events (Textuals) [Abstract]3false0us-gaap_MinorityInterestOwnershipPercentageByParentus-gaaptruenainstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruefalse00falsefalsefalsefalsefalse2truetruefalse0.800.80falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThe consolidating entity's interest in net assets of the subsidiary, expressed as a percentage.No authoritative reference available.falsefalseNoncontrolling interest, ownership percentage by parent4false0us-gaap_BusinessAcquisitionRevenueReportedByAcquiredEntityForLastAnnualPeriodus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse325000000325falsetruefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal revenue reported by the acquired entity for its previous full fiscal year before the business acquisition.No authoritative reference available.falsefalseAnnual sales of Quero business23Subsequent Events (Details) (Quero [Member], USD $)MillionsUnKnownUnKnownUnKnowntruetrue