CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Millions, except Per Share data	12 Months Ended
	Sep. 01, 2011	Sep. 02, 2010	Sep. 03, 2009
Income Statement [Abstract]
Net sales	$ 8,788	$ 8,482	$ 4,803
Cost of goods sold	7,030	5,768	5,243
Gross margin	1,758	2,714	(440)
Selling, general and administrative	592	528	354
Research and development	791	624	647
Other operating (income) expense, net	(380)	(27)	235
Operating income	755	1,589	(1,676)
Gain on acquisition of Numonyx	0	437	0
Interest income	23	18	22
Interest expense	(124)	(178)	(182)
Other non-operating income (expense), net	(103)	54	(16)
Total income before income taxes	551	1,920	(1,852)
Income tax (provision) benefit	(203)	19	(1)
Equity in net income (loss) of equity method investees, net of tax	(158)	(39)	(140)
Net income (loss)	190	1,900	(1,993)
Net (income) loss attributable to noncontrolling interests	(23)	(50)	111
Net income (loss) attributable to Micron	$ 167	$ 1,850	$ (1,882)
Earnings (loss) per share:
Basic (in dollars per share)	$ 0.17	$ 2.09	$ (2.35)
Diluted (in dollars per share)	$ 0.17	$ 1.85	$ (2.35)
Number of shares used in per share calculations:
Basic (in shares)	988.0	887.5	800.7
Diluted (in shares)	1,007.5	1,050.7	800.7