Shareholders' Equity (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 01, 2012	Mar. 03, 2011	Mar. 01, 2012	Mar. 03, 2011
Beginning Balance			$ 9,852	$ 9,816
Net income (loss)	(282)	75	(469)	247
Other comprehensive income (loss)	(34)	67	(64)	95
Comprehensive income (loss)	(316)	142	(533)	342
Acquisition of noncontrolling interests in TECH			0	(159)
Net contibution from (distributions to) noncontrolling interests			(9)	(95)
Issuance and repurchase of convertible debts			0	13
Capital and other transactions attributable to Micron			49	45
Ending Balance	9,359	9,962	9,359	9,962
Attributable to Micron [Member]
Beginning Balance			8,470	8,020
Net income (loss)			(469)	227
Other comprehensive income (loss)			(64)	90
Comprehensive income (loss)			(533)	317
Acquisition of noncontrolling interests in TECH			0	67
Net contibution from (distributions to) noncontrolling interests			0	0
Issuance and repurchase of convertible debts			0	13
Capital and other transactions attributable to Micron			49	45
Ending Balance	7,986	8,462	7,986	8,462
Noncontrolling Interest [Member]
Beginning Balance			1,382	1,796
Net income (loss)			0	20
Other comprehensive income (loss)			0	5
Comprehensive income (loss)			0	25
Acquisition of noncontrolling interests in TECH			0	(226)
Net contibution from (distributions to) noncontrolling interests			(9)	(95)
Issuance and repurchase of convertible debts			0	0
Capital and other transactions attributable to Micron			0	0
Ending Balance	$ 1,373	$ 1,500	$ 1,373	$ 1,500