Equity - Changes in the Components of Equity (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 05, 2015	Feb. 27, 2014	Mar. 05, 2015	Feb. 27, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance			$ 11,573	$ 10,006
Net income (loss)	935	741	1,937	1,122
Other comprehensive income (loss)	(54)	(9)	(75)	(4)
Comprehensive income (loss)	881	732	1,862	1,118
Contributions from noncontrolling interests			20	49
Distributions to noncontrolling interests			(6)	(19)
Acquisition of noncontrolling interest in MMT			0	(136)
Capital and other transactions attributable to Micron			(208)	(974)
Balance	13,241	10,044	13,241	10,044
Stock repurchased and retired during the period for equity plans (in shares)			2	4
Stock repurchased and retired during the period for equity plans			52	73
Attributable to Micron [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance			10,771	9,142
Net income (loss)			1,937	1,089
Other comprehensive income (loss)			(74)	(4)
Comprehensive income (loss)			1,863	1,085
Contributions from noncontrolling interests			0	0
Distributions to noncontrolling interests			0	0
Acquisition of noncontrolling interest in MMT			0	31
Capital and other transactions attributable to Micron			(208)	(974)
Balance	12,426	9,284	12,426	9,284
Noncontrolling Interests in Subsidiaries [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance			802	864
Net income (loss)			0	33
Other comprehensive income (loss)			(1)	0
Comprehensive income (loss)			(1)	33
Contributions from noncontrolling interests			20	49
Distributions to noncontrolling interests			(6)	(19)
Acquisition of noncontrolling interest in MMT			0	(167)
Capital and other transactions attributable to Micron			0	0
Balance	$ 815	$ 760	$ 815	$ 760