CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 01, 2011	Dec. 02, 2010
Income Statement [Abstract]
Net sales	$ 2,090	$ 2,252
Cost of goods sold	1,785	1,728
Gross margin	305	524
Selling, general and administrative	151	140
Research and development	230	185
Other operating (income) expense, net	6	(191)
Operating income (loss)	(82)	390
Interest income	2	8
Interest expense	(35)	(38)
Other non-operating income (expense), net	0	(114)
Total income (loss) before income taxes	(115)	246
Income tax (provision) benefit	2	(48)
Equity in net income (loss) of equity method investees, net of tax	(74)	(26)
Net income (loss)	(187)	172
Net income attributable to noncontrolling interests	0	(17)
Net income (loss) attributable to Micron	$ (187)	$ 155
Earnings (loss) per share:
Basic (in dollars per share)	$ (0.19)	$ 0.16
Diluted (in dollars per share)	$ (0.19)	$ 0.15
Number of shares used in per share calculations:
Basic (in shares)	981.4	972.9
Diluted (in shares)	981.4	1,031.3