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DERIVATIVE FINANCIAL INSTRUMENTS Narrative (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 29, 2015
Mar. 30, 2014
Mar. 27, 2016
Derivative [Line Items]      
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax $ 51.0us-gaap_AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax    
Tax On Deferred Gains (Losses) in Accumulated Other Comprehensive Income (Loss) 32.9sfd_TaxOnDeferredGainsLossesInAccumulatedOtherComprehensiveIncomeLoss    
Gains (Losses) Recognized on Closed Commodity Derivative Contracts As the Underlying Cash Transactions Affected Earnings 1.0sfd_GainsLossesRecognizedOnClosedCommodityDerivativeContractsAsUnderlyingCashTransactionsAffectedEarnings 0.1sfd_GainsLossesRecognizedOnClosedCommodityDerivativeContractsAsUnderlyingCashTransactionsAffectedEarnings  
Scenario, Forecast | Commodity Contract      
Derivative [Line Items]      
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months     106.5us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_CommodityContractMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months, Net of Tax     $ 65.1sfd_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonthsNetOfTax
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_CommodityContractMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
Not Designated as Hedging Instrument [Member] | Crude Oil [Member]      
Derivative [Line Items]      
Minimum Notional Volumes, Other Units 48,000sfd_MinimumNotionalVolumesOtherUnits
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_CrudeOilMember
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_NondesignatedMember
   
Maximum Notional Volumes, Other Units 72,000sfd_MaximumNotionalVolumesOtherUnits
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_CrudeOilMember
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_NondesignatedMember