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Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Dec. 27, 2014
Mar. 29, 2014
Financial assets recorded at fair value:    
Fair value of derivative assets $ 77us-gaap_DerivativeFairValueOfDerivativeAsset $ 8us-gaap_DerivativeFairValueOfDerivativeAsset
Fair value of assets recorded at fair value on a recurring basis 77us-gaap_AssetsFairValueDisclosureRecurring 11us-gaap_AssetsFairValueDisclosureRecurring
Financial liabilities recorded at fair value:    
Fair value of derivative liabilities 8us-gaap_DerivativeFairValueOfDerivativeLiability 7us-gaap_DerivativeFairValueOfDerivativeLiability
Fair value of liabilities recorded at fair value on a recurring basis 8us-gaap_LiabilitiesFairValueDisclosureRecurring 7us-gaap_LiabilitiesFairValueDisclosureRecurring
Fair Value, Inputs, Level 2 [Member]    
Financial assets recorded at fair value:    
Fair value of derivative assets 77us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
[1] 8us-gaap_DerivativeFairValueOfDerivativeAsset
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
[1]
Financial liabilities recorded at fair value:    
Fair value of derivative liabilities 8us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
[1] 7us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
[1]
Government Bonds [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_InvestmentTypeAxis
= rl_GovernmentBondsMember
[2] 1us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_InvestmentTypeAxis
= rl_GovernmentBondsMember
[2]
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_InvestmentTypeAxis
= us-gaap_OtherInvestmentsMember
[1] $ 2us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_InvestmentTypeAxis
= us-gaap_OtherInvestmentsMember
[1]
[1] Based on Level 2 measurements.
[2] Based on Level 1 measurements.