Document and Entity Information Document - shares	9 Months Ended
	May 30, 2019	Jun. 19, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	MICRON TECHNOLOGY INC
Entity Central Index Key	0000723125
Current Fiscal Year End Date	--08-29
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	May 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		1,103,803,379
Entity Current Reporting Status	Yes
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false