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Fair Value Measurements (Details 1) (USD $)
In Millions, unless otherwise specified
Mar. 28, 2015
Mar. 29, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Unsecured Long-term Debt, Noncurrent $ 298us-gaap_UnsecuredLongTermDebt [1] $ 298us-gaap_UnsecuredLongTermDebt [1]
Commercial paper, carrying amount 234us-gaap_ShortTermBorrowings 0us-gaap_ShortTermBorrowings
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
2.125% Senior Notes, Fair Value 304us-gaap_LongTermDebtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
[2] 300us-gaap_LongTermDebtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
[2]
Commercial paper, fair value $ 234us-gaap_ShorttermDebtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
[2]  
[1] Net of $2 million of unamortized debt issuance costs as of both March 28, 2015 and March 29, 2014.
[2] Based on Level 2 measurements.