Operating Segments and Related Information - Information by Operating Segments (Detail) - USD ($) $ in Millions	12 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	$ 34,350	$ 32,376	$ 30,601
Earnings Before Interest and Taxes	4,945	4,642	4,233
Interest expense (income), net	59	19	28
Income before income taxes	4,886	4,623	4,205
Additions to Long-lived Assets	1,201	1,191	1,003
Depreciation	706	649	606
Corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	75	(86)	(82)
Earnings Before Interest and Taxes	(724)	(1,173)	(1,097)
Additions to Long-lived Assets	387	312	144
Depreciation	91	84	75
NIKE Brand
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	32,233	30,507	28,701
Earnings Before Interest and Taxes	5,192	5,328	4,813
Additions to Long-lived Assets	784	840	790
Depreciation	587	538	513
NIKE Brand | Global Brand Divisions
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	73	73	115
Earnings Before Interest and Taxes	(2,677)	(2,596)	(2,267)
Additions to Long-lived Assets	278	258	225
Depreciation	233	230	210
NIKE Brand | North America
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	15,216	14,764	13,740
Earnings Before Interest and Taxes	3,875	3,763	3,645
Additions to Long-lived Assets	223	242	208
Depreciation	140	133	121
NIKE Brand | Western Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	6,211	5,884	5,705
Earnings Before Interest and Taxes	1,203	1,434	1,275
Additions to Long-lived Assets	162	215	216
Depreciation	91	72	75
NIKE Brand | Central & Eastern Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	1,487	1,431	1,421
Earnings Before Interest and Taxes	244	289	249
Additions to Long-lived Assets	10	17	20
Depreciation	13	12	12
NIKE Brand | Greater China
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	4,237	3,785	3,067
Earnings Before Interest and Taxes	1,507	1,372	993
Additions to Long-lived Assets	51	44	69
Depreciation	54	48	46
NIKE Brand | Japan
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	1,014	869	755
Earnings Before Interest and Taxes	224	174	100
Additions to Long-lived Assets	21	13	15
Depreciation	18	18	22
NIKE Brand | Emerging Markets
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	3,995	3,701	3,898
Earnings Before Interest and Taxes	816	892	818
Additions to Long-lived Assets	39	51	37
Depreciation	38	25	27
Converse
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	2,042	1,955	1,982
Earnings Before Interest and Taxes	477	487	517
Additions to Long-lived Assets	30	39	69
Depreciation	$ 28	$ 27	$ 18