Operating Segments - Information by Operating Segments (Detail) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Nov. 30, 2015	Aug. 31, 2015	Nov. 30, 2014	Aug. 31, 2014	Nov. 30, 2015	Nov. 30, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 7,686		$ 7,380		$ 16,100	$ 15,362
Interest expense (income), net	5		9		9	18
TOTAL NIKE CONSOLIDATED EARNINGS BEFORE TAXES	970		878		2,415	2,107
Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	7,686		7,380		16,100	15,362
Earnings Before Interest and Taxes	975		887		2,424	2,125
TOTAL NIKE CONSOLIDATED EARNINGS BEFORE TAXES	970		878		2,415	2,107
Operating Segments | NIKE Brand
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	7,317		6,959		15,215	14,380
Earnings Before Interest and Taxes	1,255		1,072		2,880	2,366
Operating Segments | NIKE Brand | North America
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	3,547		3,241		7,346	6,754
Earnings Before Interest and Taxes	882		785		1,924	1,755
Operating Segments | NIKE Brand | Western Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	1,299		1,312		2,940	3,025
Earnings Before Interest and Taxes	307		261		792	665
Operating Segments | NIKE Brand | Central & Eastern Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	326		347		727	740
Earnings Before Interest and Taxes	76		57		174	126
Operating Segments | NIKE Brand | Greater China
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	938		758		1,824	1,437
Earnings Before Interest and Taxes	327		258		657	476
Operating Segments | NIKE Brand | Japan
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	205		199		384	359
Earnings Before Interest and Taxes	47		29		83	40
Operating Segments | NIKE Brand | Emerging Markets
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	984		1,075		1,950	2,009
Earnings Before Interest and Taxes	241		236		499	392
Operating Segments | NIKE Brand | Global Brand Divisions
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	18		27		44	56
Earnings Before Interest and Taxes	(625)		(554)		(1,249)	(1,088)
Operating Segments | Converse
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	398		434		953	1,009
Earnings Before Interest and Taxes	85		88		232	274
Operating Segments | Corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	(29)		(13)		(68)	(27)
Earnings Before Interest and Taxes	$ (365)		$ (273)		(688)	(515)
Segment Reconciling Items
Segment Reporting, Revenue Reconciling Item [Line Items]
Interest expense (income), net		$ (5)		$ (9)	$ (9)	$ (18)