Operating Segments - Information by Operating Segments (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	$ 7,982	$ 6,971
Earnings Before Interest and Taxes	1,238	1,046
Interest expense (income), net	9	8
Income before income taxes	1,229	1,038
NIKE Brand
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	7,421	6,468
Earnings Before Interest and Taxes	1,294	1,097
NIKE Brand | North America
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	3,513	3,135
Earnings Before Interest and Taxes	970	813
NIKE Brand | Western Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	1,714	1,301
Earnings Before Interest and Taxes	404	265
NIKE Brand | Central & Eastern Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	392	366
Earnings Before Interest and Taxes	68	81
NIKE Brand | Greater China
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	679	574
Earnings Before Interest and Taxes	218	170
NIKE Brand | Japan
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	160	158
Earnings Before Interest and Taxes	11	24
NIKE Brand | Emerging Markets
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	934	902
Earnings Before Interest and Taxes	156	210
NIKE Brand | Global Brand Division
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	29	32
Earnings Before Interest and Taxes	(533)	(466)
Converse
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	575	494
Earnings Before Interest and Taxes	186	169
Corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	(14)	9
Earnings Before Interest and Taxes	$ (242)	$ (220)