Operating Segments and Related Information - Information by Operating Segments (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2012
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	$ 27,799	$ 25,313	$ 23,331
Earnings Before Interest and Taxes	3,577	3,253	3,015
Interest expense (income), net	33	(3)	4
Income before income taxes	3,544	3,256	3,011
Additions to Long-lived Assets	922	781	587
Depreciation	518	418	353
NIKE Brand
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	26,112	23,881	22,011
Earnings Before Interest and Taxes	4,090	3,712	3,295
Additions to Long-lived Assets	731	608	551
Depreciation	448	365	302
NIKE Brand | North America
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	12,299	11,158	9,538
Earnings Before Interest and Taxes	3,075	2,641	2,092
Additions to Long-lived Assets	240	132	139
Depreciation	109	92	85
NIKE Brand | Western Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	4,979	4,193	4,212
Earnings Before Interest and Taxes	855	643	599
Additions to Long-lived Assets	120	75	93
Depreciation	71	68	62
NIKE Brand | Central & Eastern Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	1,387	1,229	1,146
Earnings Before Interest and Taxes	279	234	209
Additions to Long-lived Assets	19	22	20
Depreciation	11	9	6
NIKE Brand | Greater China
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	2,602	2,478	2,561
Earnings Before Interest and Taxes	816	813	913
Additions to Long-lived Assets	63	52	38
Depreciation	38	32	25
NIKE Brand | Japan
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	771	876	920
Earnings Before Interest and Taxes	131	139	135
Additions to Long-lived Assets	9	7	14
Depreciation	19	22	23
NIKE Brand | Emerging Markets
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	3,949	3,832	3,523
Earnings Before Interest and Taxes	955	988	826
Additions to Long-lived Assets	55	50	27
Depreciation	25	20	16
NIKE Brand | Global Brand Division
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	125	115	111
Earnings Before Interest and Taxes	(2,021)	(1,746)	(1,479)
Additions to Long-lived Assets	225	270	220
Depreciation	175	122	85
Converse
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	1,684	1,449	1,324
Earnings Before Interest and Taxes	496	425	394
Additions to Long-lived Assets	30	20	11
Depreciation	16	15	14
Corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	3	(17)	(4)
Earnings Before Interest and Taxes	(1,009)	(884)	(674)
Additions to Long-lived Assets	161	153	25
Depreciation	$ 54	$ 38	$ 37