Consolidated Variable Interest Entities (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended				12 Months Ended						3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended			3 Months Ended
	Mar. 01, 2012	Mar. 03, 2011	Mar. 01, 2012	Mar. 03, 2011	Feb. 24, 2012	Sep. 01, 2011	Aug. 31, 2006 Nonsoftware License Arrangement with Photronics [Member]	Mar. 01, 2012 Nonsoftware License Arrangement with Photronics [Member]	Sep. 01, 2011 Nonsoftware License Arrangement with Photronics [Member]	Mar. 01, 2012 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash Technologies, LLC [Member]	Mar. 01, 2012 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash Singapore LLP [Member]	Dec. 02, 2010 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash Singapore LLP [Member]	Mar. 01, 2012 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member]	Mar. 03, 2011 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member]	Mar. 01, 2012 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member]	Mar. 03, 2011 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member]	Mar. 01, 2012 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member] Intel [Member]	Mar. 03, 2011 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member] Intel [Member]	Mar. 01, 2012 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member] Intel [Member]	Mar. 03, 2011 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member] Intel [Member]	Sep. 01, 2011 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] IM Flash [Member] Intel [Member]	Dec. 01, 2011 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] MP Mask Technology Center, LLC [Member]	Mar. 01, 2012 Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] MP Mask Technology Center, LLC [Member]
Variable Interest Entity [Line Items]
Variable interest entity, ownership percentage (in hundredths)										51.00%	82.00%												50.01%
Variable interest entity, ownership percentage by noncontrolling owners (in hundredths)										49.00%	18.00%												49.99%
Micron share of IMFS cost and supply											78.00%	51.00%
Net sales	$ 2,009	$ 2,257	$ 4,099	$ 4,509													$ 255	$ 202	$ 516	$ 411
Trade Receivables	913		913			1,105											145		145		165
R and D expenses reduced by reimbursements from Intel	20	23	42	46
Proceeds for entering into license agreement with Photronics							72
Term of license agreement with Photronics (in years)							10Y
Deferred income and other noncurrent liabilities related to license agreement with Photronics								30	34
Sale proceeds for facility sold to Photronics					35
Distributions to, and contributions from, shareholders [Abstract]
Distributions to Micron from consolidated VIE's													67	53	153	104
Distributions to noncontrolling interests from consolidated VIE's			147	99									64	50	147	99
Micron contributions to consolidated VIE's													0	343	103	735						8
Cash received from noncontrolling interests			$ 138	$ 4									$ 0	$ 0	$ 131	$ 0						$ 7