Quarterly Financial Information Quarterly Financial Information (Details) (USD $) In Millions, except Per Share data	3 Months Ended	12 Months Ended
Sep. 01, 2011	Jun. 02, 2011	Mar. 03, 2011	Dec. 02, 2010	Sep. 02, 2010	Jun. 03, 2010	Mar. 04, 2010	Dec. 03, 2009	Sep. 01, 2011	Sep. 02, 2010	Sep. 03, 2009
Net sales	$ 2,140	$ 2,139	$ 2,257	$ 2,252	$ 2,493	$ 2,288	$ 1,961	$ 1,740	$ 8,788	$ 8,482	$ 4,803
Gross margin	321	478	435	524	781	848	642	443	1,758	2,714	(440)
Operating income (loss)	(51)	237	179	390	433	540	415	201	755	1,589	(1,676)
Net income (loss)	(134)	77	75	172	359	960	379	202	190	1,900	(1,993)
Net income (loss) attributable to Micron	(135)	75	72	155	342	939	365	204	167	1,850	(1,882)
Earnings (loss) per share:
Basic (in dollars per share)	$ (0.14)	$ 0.07	$ 0.07	$ 0.16	$ 0.35	$ 1.06	$ 0.43	$ 0.24	$ 0.17	$ 2.09	$ (2.35)
Diluted (in dollars per share)	$ (0.14)	$ 0.07	$ 0.07	$ 0.15	$ 0.32	$ 0.92	$ 0.39	$ 0.23	$ 0.17	$ 1.85	$ (2.35)
Selected Quarterly Financial Information [Abstract]
Gain from disposition of Japan Fab		54							54	0	0
Net charge relating to the disposition of the Japan Fab		74
Patent license revenue from Samsung Electronics, Ltd., net of tax		30	33	167
Loss on debt restructure transaction				113					(113)	0	0
Gain from acquisition of Numonyx						$ 437			$ 0	$ 437	$ 0

Gain on patent cross-license agreement with Samsung Electronics Co. Ltd., net of tax.

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