Document and Entity Information Document - USD ($) $ in Billions	12 Months Ended
	Aug. 30, 2018	Oct. 08, 2018	Mar. 01, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	MICRON TECHNOLOGY INC
Entity Central Index Key	0000723125
Current Fiscal Year End Date	--08-30
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	Aug. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		1,134,255,375
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 45.0
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false