Micron Shareholders' Equity and Noncontrolling Interests in Subsidiaries Changes in Components of Equity (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Nov. 29, 2012	Dec. 01, 2011
Beginning balance	$ 8,417	$ 9,852
Net loss	(275)	(187)
Other comprehensive income (loss)	3	(30)
Total comprehensive income (loss)	(272)	(217)
Contribution from noncontrolling interests	0	138
Distributions to noncontrolling interests	0	(83)
Capital and other transactions attributable to Micron	41	19
Ending balance	8,186	9,709
Attributable to Micron [Member]
Beginning balance	7,700	8,470
Net loss	(275)	(187)
Other comprehensive income (loss)	3	(31)
Total comprehensive income (loss)	(272)	(218)
Contribution from noncontrolling interests	0	0
Distributions to noncontrolling interests	0	0
Capital and other transactions attributable to Micron	41	19
Ending balance	7,469	8,271
Noncontrolling Interest [Member]
Beginning balance	717	1,382
Net loss	0	0
Other comprehensive income (loss)	0	1
Total comprehensive income (loss)	0	1
Contribution from noncontrolling interests	0	138
Distributions to noncontrolling interests	0	(83)
Capital and other transactions attributable to Micron	0	0
Ending balance	$ 717	$ 1,438

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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Represents an increase in noncontrolling interest from issuance of additional equity interests to noncontrolling interest holders or the sale of a portion of the parent's controlling interest.

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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