Operating Segments - Information by Operating Segments (Detail) - USD ($) $ in Millions	3 Months Ended
Aug. 31, 2017	Aug. 31, 2016
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 9,070	$ 9,061
EARNINGS BEFORE INTEREST AND TAXES	1,088	1,288
Interest expense (income), net	16	7
Income before income taxes	1,072	1,281
Corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	2	28
EARNINGS BEFORE INTEREST AND TAXES	(433)	(163)
NIKE Brand
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	8,585	8,459
EARNINGS BEFORE INTEREST AND TAXES	1,432	1,298
NIKE Brand \| Global Brand Divisions
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	20	15
EARNINGS BEFORE INTEREST AND TAXES	(675)	(771)
NIKE Brand \| North America
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	3,924	4,031
EARNINGS BEFORE INTEREST AND TAXES	1,002	1,004
NIKE Brand \| Europe, Middle East & Africa
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	2,344	2,262
EARNINGS BEFORE INTEREST AND TAXES	451	485
NIKE Brand \| Greater China
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	1,108	1,020
EARNINGS BEFORE INTEREST AND TAXES	394	371
NIKE Brand \| Asia Pacific & Latin America
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	1,189	1,131
EARNINGS BEFORE INTEREST AND TAXES	260	209
Converse
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	483	574
EARNINGS BEFORE INTEREST AND TAXES	$ 89	$ 153

Amount of income or loss before interest expense (income) and income taxes.

No definition available.

Name:	nke_EarningsBeforeInterestAndTaxes
Namespace Prefix:	nke_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The net amount of nonoperating interest income (expense).

+ References

No definition available.

+ Details

Name:	us-gaap_InterestIncomeExpenseNonoperatingNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingRevenueReconcilingItemLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=nke_NIKEBrandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_MaterialReconcilingItemsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=nke_NorthAmericaSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=nke_EuropeMiddleEastAndAfricaSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=nke_GreaterChinaSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=nke_AsiaPacificAndLatinAmericaSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=nke_ConverseSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: