Document and Entity Information (USD $)	12 Months Ended
	May 31, 2014	Jul. 18, 2014	Nov. 30, 2013
Document Type	10-K
Amendment Flag	false
Document Period End Date	May 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	NKE
Entity Registrant Name	NIKE INC
Entity Central Index Key	0000320187
Current Fiscal Year End Date	--05-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Public Float (In Dollars)			$ 59,634,158,357
Entity Common Stock Shares Outstanding (In Shares)		868,297,496
Class A Convertible Common Stock
Entity Public Float (In Dollars)			3,536,091,219
Entity Common Stock Shares Outstanding (In Shares)		177,557,876
Class B Common Stock
Entity Public Float (In Dollars)			$ 56,098,067,138
Entity Common Stock Shares Outstanding (In Shares)		690,739,620