Annual report pursuant to Section 13 and 15(d)

Financial Instruments (Details) (Summary of Derivative Instruments)

v2.4.1.9
Financial Instruments (Details) (Summary of Derivative Instruments) (USD $)
In Millions, unless otherwise specified
Dec. 27, 2014
Dec. 28, 2013
Contracts Designated as Cash Flow Hedging Instruments    
Derivative [Line Items]    
Derivative contracts, net $ (6)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_CashFlowHedgingMember 		$ (3)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_CashFlowHedgingMember
Contracts not Designated as Hedging Instruments    
Derivative [Line Items]    
Derivative contracts, net (1)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_NondesignatedMember 		(1)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_NondesignatedMember
Contracts Designated as Fair Value Hedging Instruments    
Derivative [Line Items]    
Derivative, notional amount 250invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_FairValueHedgingMember 		 
Derivative contracts, net 3us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_FairValueHedgingMember 		0us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_FairValueHedgingMember
Foreign Currency Forward Contracts    
Derivative [Line Items]    
Derivative, notional amount 298invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember 		124invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
Derivative contracts, net (7)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember 		 
Foreign Currency Forward Contracts | Contracts Designated as Cash Flow Hedging Instruments    
Derivative [Line Items]    
Derivative contracts, net (6)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_CashFlowHedgingMember 		(3)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_CashFlowHedgingMember
Foreign Currency Forward Contracts | Contracts not Designated as Hedging Instruments    
Derivative [Line Items]    
Derivative contracts, net (1)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_NondesignatedMember 		(1)us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_NondesignatedMember
Interest Rate Swap Contracts | Contracts Designated as Fair Value Hedging Instruments    
Derivative [Line Items]    
Derivative contracts, net $ 3us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_FairValueHedgingMember 		$ 0us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateContractMember
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_FairValueHedgingMember