Document Entity Information - shares	3 Months Ended
	Nov. 28, 2019	Dec. 13, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Nov. 28, 2019
Document Transition Report	false
Entity File Number	1-10658
Entity Registrant Name	Micron Technology, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	75-1618004
Entity Address, Address Line One	8000 S. Federal Way
Entity Address, City or Town	Boise
Entity Address, State or Province	ID
Entity Address, Postal Zip Code	83716
City Area Code	208
Local Phone Number	368-4000
Title of 12(b) Security	Common Stock, par value $0.10 per share
Trading Symbol	MU
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1,110,873,554
Entity Central Index Key	0000723125
Current Fiscal Year End Date	--09-03
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false