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Risk Management and Derivatives - Additional Information (Detail) (USD $) | 9 Months Ended |
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Feb. 28, 2015 | May 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Maximum term over which the Company is hedging exposures to the variability of cash flows for its forecasted and recorded transactions (in months) | 27 months |
Percentage of anticipated exposures hedged (percent) | 100.00%nke_PercentOfAnticipatedExposuresHedged |
Deferred net gains (net of tax) on both outstanding and matured derivatives accumulated in other comprehensive income are expected to be reclassified to net income during the next twelve months as a result of underlying hedged transactions also being recorded in net income | $ 577,000,000 us-gaap_ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months |
Aggregate fair value of derivative instruments in net liability position | 2,000,000 us-gaap_DerivativeNetLiabilityPositionAggregateFairValue |
Collateral received from counterparties to hedging instruments | 769,000,000 us-gaap_DerivativeAssetFairValueOfCollateral | 0 us-gaap_DerivativeAssetFairValueOfCollateral
Embedded derivatives |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Total notional amount of outstanding derivatives | 151,000,000 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_EmbeddedDerivativeFinancialInstrumentsMember |
Undesignated Derivative Instruments |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Total notional amount of outstanding derivatives | 5,000,000,000 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = nke_NotDesignatedasDerivativeInstrumentMember |
Minimum |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Typical time period that anticipated exposures are hedged against (in months) | 12 months |
Minimum fair value of outstanding derivative above which the credit related contingent features require the derivative party to post collateral | 50,000,000 nke_CreditRiskRelatedContingentFeaturesCollateralThreshold / us-gaap_RangeAxis = us-gaap_MinimumMember |
Maximum |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Typical time period that anticipated exposures are hedged against (in months) | 24 months |
Fair Value Hedging [Member] | Interest rate swap |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Total notional amount of outstanding derivatives | 100,000,000 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_FairValueHedgingMember |
Cash Flow Hedging |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Total notional amount of outstanding derivatives | 10,700,000,000 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember |
Cash Flow Hedging | Designated as Hedging Instrument | Interest rate swap |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Total notional amount of outstanding derivatives | 750,000,000 invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember |
Securities Pledged as Collateral |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Collateral received from counterparties to hedging instruments | 77,000,000 us-gaap_DerivativeAssetFairValueOfCollateral / us-gaap_FinancialInstrumentAxis = us-gaap_SecuritiesPledgedAsCollateralMember |
Accrued Liabilities |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Collateral received from counterparties to hedging instruments | 769,000,000 us-gaap_DerivativeAssetFairValueOfCollateral / us-gaap_BalanceSheetLocationAxis = us-gaap_AccruedLiabilitiesMember |
Accrued Liabilities | Interest rate swap |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Collateral received from counterparties to hedging instruments | 33,000,000 us-gaap_DerivativeAssetFairValueOfCollateral / us-gaap_BalanceSheetLocationAxis = us-gaap_AccruedLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember |
Cash and Cash Equivalents |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Collateral received from counterparties to hedging instruments | 769,000,000 us-gaap_DerivativeAssetFairValueOfCollateral / us-gaap_BalanceSheetLocationAxis = us-gaap_CashAndCashEquivalentsMember |
Cash and Cash Equivalents | Interest rate swap |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |
Collateral received from counterparties to hedging instruments | $ 33,000,000 us-gaap_DerivativeAssetFairValueOfCollateral / us-gaap_BalanceSheetLocationAxis = us-gaap_CashAndCashEquivalentsMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateSwapMember |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition This element represents the typical future period that foreign currency cash flow exposures are hedged against. + References No definition available. + Details
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- Definition Credit Risk Related Contingent Features, Collateral Threshold + References No definition available. + Details
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- Definition This element represents the maximum percentage of anticipated foreign currency cash flow exposures that are hedged. + References No definition available. + Details
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- Definition Fair value of securities received as collateral against derivative assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=28370219&loc=SL20226013-175313 + Details
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- Definition The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624258-113959 + Details
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- Definition The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994 + Details
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- Definition Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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