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PENSION AND OTHER RETIREMENT PLANS Schedule of Components of Net Periodic Pension Costs (Details) (USD $)
In Millions, unless otherwise specified
8 Months Ended 12 Months Ended 5 Months Ended 12 Months Ended 3 Months Ended
Dec. 29, 2013
Dec. 28, 2014
Sep. 26, 2013
Apr. 28, 2013
Apr. 29, 2012
Dec. 29, 2013
Defined Benefit Plan Disclosure [Line Items]            
Service cost $ 32.4us-gaap_DefinedBenefitPlanServiceCost $ 48.9us-gaap_DefinedBenefitPlanServiceCost        
Interest cost 54.4us-gaap_DefinedBenefitPlanInterestCost 84.3us-gaap_DefinedBenefitPlanInterestCost        
Predecessor            
Defined Benefit Plan Disclosure [Line Items]            
Service cost     22.6us-gaap_DefinedBenefitPlanServiceCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
47.2us-gaap_DefinedBenefitPlanServiceCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
37.4us-gaap_DefinedBenefitPlanServiceCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
 
Interest cost     32.8us-gaap_DefinedBenefitPlanInterestCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
74.8us-gaap_DefinedBenefitPlanInterestCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
75.9us-gaap_DefinedBenefitPlanInterestCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
 
Expected return on plan assets     (35.4)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
(78.8)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
(79.6)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
 
Net amortization     24.8sfd_DefinedBenefitPlanNetAmortization
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
52.9sfd_DefinedBenefitPlanNetAmortization
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
23.5sfd_DefinedBenefitPlanNetAmortization
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
 
Net periodic pension cost     44.8us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
96.1us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
57.2us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
 
Successor            
Defined Benefit Plan Disclosure [Line Items]            
Service cost   48.9us-gaap_DefinedBenefitPlanServiceCost
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
      9.8us-gaap_DefinedBenefitPlanServiceCost
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
Interest cost   84.3us-gaap_DefinedBenefitPlanInterestCost
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
      21.6us-gaap_DefinedBenefitPlanInterestCost
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
Expected return on plan assets   (85.9)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
      (19.5)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
Net amortization   0sfd_DefinedBenefitPlanNetAmortization
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
      0sfd_DefinedBenefitPlanNetAmortization
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
Net periodic pension cost   $ 50.6us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
      $ 11.9us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember