Operating Segments and Related Information - Information by Operating Segments (Detail) - USD ($) $ in Millions	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	$ 30,601	$ 27,799	$ 25,313
Interest expense (income), net	28	33	(3)
Income before income taxes	4,205	3,544	3,256
Depreciation	606	518	438
Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	30,601	27,799	25,313
Earnings Before Interest and Taxes	4,233	3,577	3,253
Income before income taxes	4,205	3,544	3,256
Additions to Long-lived Assets	1,003	922	781
Depreciation	606	518	418
Operating Segments | NIKE Brand
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	28,701	26,112	23,881
Earnings Before Interest and Taxes	4,817	4,117	3,737
Additions to Long-lived Assets	790	731	608
Depreciation	513	448	365
Operating Segments | NIKE Brand | North America
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	13,740	12,299	11,158
Earnings Before Interest and Taxes	3,645	3,077	2,639
Additions to Long-lived Assets	208	240	132
Depreciation	121	109	92
Operating Segments | NIKE Brand | Western Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	5,709	4,979	4,193
Earnings Before Interest and Taxes	1,277	855	643
Additions to Long-lived Assets	216	120	75
Depreciation	75	71	68
Operating Segments | NIKE Brand | Central & Eastern Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	1,417	1,387	1,229
Earnings Before Interest and Taxes	247	279	234
Additions to Long-lived Assets	20	19	22
Depreciation	12	11	9
Operating Segments | NIKE Brand | Greater China
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	3,067	2,602	2,478
Earnings Before Interest and Taxes	993	816	813
Additions to Long-lived Assets	69	63	52
Depreciation	46	38	32
Operating Segments | NIKE Brand | Japan
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	755	771	876
Earnings Before Interest and Taxes	100	131	139
Additions to Long-lived Assets	15	9	7
Depreciation	22	19	22
Operating Segments | NIKE Brand | Emerging Markets
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	3,898	3,949	3,832
Earnings Before Interest and Taxes	818	952	985
Additions to Long-lived Assets	37	55	50
Depreciation	27	25	20
Operating Segments | NIKE Brand | Global Brand Divisions
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	115	125	115
Earnings Before Interest and Taxes	(2,263)	(1,993)	(1,716)
Additions to Long-lived Assets	225	225	270
Depreciation	210	175	122
Operating Segments | Converse
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	1,982	1,684	1,449
Earnings Before Interest and Taxes	517	496	425
Additions to Long-lived Assets	69	30	20
Depreciation	18	16	15
Operating Segments | Corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Revenue	(82)	3	(17)
Earnings Before Interest and Taxes	(1,101)	(1,036)	(909)
Additions to Long-lived Assets	144	161	153
Depreciation	75	54	38
Segment Reconciling Items
Segment Reporting, Revenue Reconciling Item [Line Items]
Interest expense (income), net	$ 28	$ 33	$ (3)