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Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Mar. 28, 2015
Mar. 29, 2014
Financial assets recorded at fair value:    
Derivative financial instruments $ 87us-gaap_DerivativeFairValueOfDerivativeAsset $ 8us-gaap_DerivativeFairValueOfDerivativeAsset
Total assets, fair value 95us-gaap_AssetsFairValueDisclosureRecurring 11us-gaap_AssetsFairValueDisclosureRecurring
Financial liabilities recorded at fair value    
Derivative financial instruments(b) 19us-gaap_DerivativeFairValueOfDerivativeLiability 7us-gaap_DerivativeFairValueOfDerivativeLiability
Total liabilities, fair value 19us-gaap_LiabilitiesFairValueDisclosureRecurring 7us-gaap_LiabilitiesFairValueDisclosureRecurring
Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Financial assets recorded at fair value:    
Derivative financial instruments 87us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
[1] 8us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
[1]
Financial liabilities recorded at fair value    
Derivative financial instruments(b) 19us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
[1] 7us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
[1]
Recurring [Member] | Government bonds - U.S. [Member] | Fair Value, Inputs, Level 1 [Member]    
Financial assets recorded at fair value:    
Investments recorded at fair value 0us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_USTreasurySecuritiesMember
[2] 1us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_USTreasurySecuritiesMember
[2]
Recurring [Member] | Corporate Bonds - non-U.S. [Member] | Fair Value, Inputs, Level 1 [Member]    
Financial assets recorded at fair value:    
Investments recorded at fair value 8us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_CorporateBondSecuritiesMember
[2] 0us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_CorporateBondSecuritiesMember
[2]
Recurring [Member] | Other Investments [Member] | Fair Value, Inputs, Level 2 [Member]    
Financial assets recorded at fair value:    
Investments recorded at fair value $ 0us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_OtherInvestmentsMember
[1] $ 2us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_OtherInvestmentsMember
[1]
[1] Based on Level 2 measurements.
[2] Based on Level 1 measurements