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Financial Instruments (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Mar. 28, 2015
counterparty
Mar. 29, 2014
Schedule of Investments [Line Items]    
Other Short-term Investments $ 644us-gaap_OtherShortTermInvestments $ 487us-gaap_OtherShortTermInvestments
Number of counterparties to master netting arrangements 8rl_Numberofcounterpartiestomasternettingarrangements  
Gain on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring   2us-gaap_GainOnDiscontinuationOfCashFlowHedgeDueToForecastedTransactionProbableOfNotOccurring
Net gains (losses) deferred in AOCI for derivative financial instruments expected to be recognized in the earnings over the next 12 months 46us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths  
Maximum length of time hedged in cash flow hedge 2 years  
Foreign currency exchange forward contracts maturities, minimum 2 months  
Foreign currency exchange forward contracts maturities, maximum 2 years  
Corporate Bonds - non-U.S. [Member]    
Schedule of Investments [Line Items]    
Available-for-sale Securities, Debt Securities, Noncurrent 8us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateBondSecuritiesMember
 
Government bonds - U.S. [Member]    
Schedule of Investments [Line Items]    
Available-for-sale Securities, Debt Securities, Current   1us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USTreasurySecuritiesMember
Other Investments [Member]    
Schedule of Investments [Line Items]    
Available-for-sale Securities, Debt Securities, Noncurrent   $ 2us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_OtherInvestmentsMember